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struct fd layout change (and conversion to accessor helpers)

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Merge tag 'pull-stable-struct_fd' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull 'struct fd' updates from Al Viro:
 "Just the 'struct fd' layout change, with conversion to accessor
  helpers"

* tag 'pull-stable-struct_fd' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  add struct fd constructors, get rid of __to_fd()
  struct fd: representation change
  introduce fd_file(), convert all accessors to it.
This commit is contained in:
Linus Torvalds 2024-09-23 09:35:36 -07:00
commit f8ffbc365f
83 changed files with 564 additions and 561 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/alpha/kernel/osf_sys.c
View File

@ -160,10 +160,10 @@ SYSCALL_DEFINE4(osf_getdirentries, unsigned int, fd,
.count = count
};
if (!arg.file)
if (!fd_file(arg))
return -EBADF;
error = iterate_dir(arg.file, &buf.ctx);
error = iterate_dir(fd_file(arg), &buf.ctx);
if (error >= 0)
error = buf.error;
if (count != buf.count)

10
arch/arm/kernel/sys_oabi-compat.c
View File

@ -239,19 +239,19 @@ asmlinkage long sys_oabi_fcntl64(unsigned int fd, unsigned int cmd,
struct flock64 flock;
long err = -EBADF;
if (!f.file)
if (!fd_file(f))
goto out;
switch (cmd) {
case F_GETLK64:
case F_OFD_GETLK:
err = security_file_fcntl(f.file, cmd, arg);
err = security_file_fcntl(fd_file(f), cmd, arg);
if (err)
break;
err = get_oabi_flock(&flock, argp);
if (err)
break;
err = fcntl_getlk64(f.file, cmd, &flock);
err = fcntl_getlk64(fd_file(f), cmd, &flock);
if (!err)
err = put_oabi_flock(&flock, argp);
break;
@ -259,13 +259,13 @@ asmlinkage long sys_oabi_fcntl64(unsigned int fd, unsigned int cmd,
case F_SETLKW64:
case F_OFD_SETLK:
case F_OFD_SETLKW:
err = security_file_fcntl(f.file, cmd, arg);
err = security_file_fcntl(fd_file(f), cmd, arg);
if (err)
break;
err = get_oabi_flock(&flock, argp);
if (err)
break;
err = fcntl_setlk64(fd, f.file, cmd, &flock);
err = fcntl_setlk64(fd, fd_file(f), cmd, &flock);
break;
default:
err = sys_fcntl64(fd, cmd, arg);

4
arch/powerpc/kvm/book3s_64_vio.c
View File

@ -118,12 +118,12 @@ long kvm_spapr_tce_attach_iommu_group(struct kvm *kvm, int tablefd,
struct fd f;
f = fdget(tablefd);
if (!f.file)
if (!fd_file(f))
return -EBADF;
rcu_read_lock();
list_for_each_entry_rcu(stt, &kvm->arch.spapr_tce_tables, list) {
if (stt == f.file->private_data) {
if (stt == fd_file(f)->private_data) {
found = true;
break;
}

12
arch/powerpc/kvm/powerpc.c
View File

@ -1938,11 +1938,11 @@ static int kvm_vcpu_ioctl_enable_cap(struct kvm_vcpu *vcpu,
r = -EBADF;
f = fdget(cap->args[0]);
if (!f.file)
if (!fd_file(f))
break;
r = -EPERM;
dev = kvm_device_from_filp(f.file);
dev = kvm_device_from_filp(fd_file(f));
if (dev)
r = kvmppc_mpic_connect_vcpu(dev, vcpu, cap->args[1]);
@ -1957,11 +1957,11 @@ static int kvm_vcpu_ioctl_enable_cap(struct kvm_vcpu *vcpu,
r = -EBADF;
f = fdget(cap->args[0]);
if (!f.file)
if (!fd_file(f))
break;
r = -EPERM;
dev = kvm_device_from_filp(f.file);
dev = kvm_device_from_filp(fd_file(f));
if (dev) {
if (xics_on_xive())
r = kvmppc_xive_connect_vcpu(dev, vcpu, cap->args[1]);
@ -1980,7 +1980,7 @@ static int kvm_vcpu_ioctl_enable_cap(struct kvm_vcpu *vcpu,
r = -EBADF;
f = fdget(cap->args[0]);
if (!f.file)
if (!fd_file(f))
break;
r = -ENXIO;
@ -1990,7 +1990,7 @@ static int kvm_vcpu_ioctl_enable_cap(struct kvm_vcpu *vcpu,
}
r = -EPERM;
dev = kvm_device_from_filp(f.file);
dev = kvm_device_from_filp(fd_file(f));
if (dev)
r = kvmppc_xive_native_connect_vcpu(dev, vcpu,
cap->args[1]);

8
arch/powerpc/platforms/cell/spu_syscalls.c
View File

@ -66,8 +66,8 @@ SYSCALL_DEFINE4(spu_create, const char __user *, name, unsigned int, flags,
if (flags & SPU_CREATE_AFFINITY_SPU) {
struct fd neighbor = fdget(neighbor_fd);
ret = -EBADF;
if (neighbor.file) {
ret = calls->create_thread(name, flags, mode, neighbor.file);
if (fd_file(neighbor)) {
ret = calls->create_thread(name, flags, mode, fd_file(neighbor));
fdput(neighbor);
}
} else
@ -89,8 +89,8 @@ SYSCALL_DEFINE3(spu_run,int, fd, __u32 __user *, unpc, __u32 __user *, ustatus)
ret = -EBADF;
arg = fdget(fd);
if (arg.file) {
ret = calls->spu_run(arg.file, unpc, ustatus);
if (fd_file(arg)) {
ret = calls->spu_run(fd_file(arg), unpc, ustatus);
fdput(arg);
}

4
arch/x86/kernel/cpu/sgx/main.c
View File

@ -903,10 +903,10 @@ int sgx_set_attribute(unsigned long *allowed_attributes,
{
struct fd f = fdget(attribute_fd);
if (!f.file)
if (!fd_file(f))
return -EINVAL;
if (f.file->f_op != &sgx_provision_fops) {
if (fd_file(f)->f_op != &sgx_provision_fops) {
fdput(f);
return -EINVAL;
}

16
arch/x86/kvm/svm/sev.c
View File

@ -534,10 +534,10 @@ static int __sev_issue_cmd(int fd, int id, void *data, int *error)
int ret;
f = fdget(fd);
if (!f.file)
if (!fd_file(f))
return -EBADF;
ret = sev_issue_cmd_external_user(f.file, id, data, error);
ret = sev_issue_cmd_external_user(fd_file(f), id, data, error);
fdput(f);
return ret;
@ -2078,15 +2078,15 @@ int sev_vm_move_enc_context_from(struct kvm *kvm, unsigned int source_fd)
bool charged = false;
int ret;
if (!f.file)
if (!fd_file(f))
return -EBADF;
if (!file_is_kvm(f.file)) {
if (!file_is_kvm(fd_file(f))) {
ret = -EBADF;
goto out_fput;
}
source_kvm = f.file->private_data;
source_kvm = fd_file(f)->private_data;
ret = sev_lock_two_vms(kvm, source_kvm);
if (ret)
goto out_fput;
@ -2803,15 +2803,15 @@ int sev_vm_copy_enc_context_from(struct kvm *kvm, unsigned int source_fd)
struct kvm_sev_info *source_sev, *mirror_sev;
int ret;
if (!f.file)
if (!fd_file(f))
return -EBADF;
if (!file_is_kvm(f.file)) {
if (!file_is_kvm(fd_file(f))) {
ret = -EBADF;
goto e_source_fput;
}
source_kvm = f.file->private_data;
source_kvm = fd_file(f)->private_data;
ret = sev_lock_two_vms(kvm, source_kvm);
if (ret)
goto e_source_fput;

8
drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c
View File

@ -42,10 +42,10 @@ static int amdgpu_sched_process_priority_override(struct amdgpu_device *adev,
uint32_t id;
int r;
if (!f.file)
if (!fd_file(f))
return -EINVAL;
r = amdgpu_file_to_fpriv(f.file, &fpriv);
r = amdgpu_file_to_fpriv(fd_file(f), &fpriv);
if (r) {
fdput(f);
return r;
@ -71,10 +71,10 @@ static int amdgpu_sched_context_priority_override(struct amdgpu_device *adev,
struct amdgpu_ctx *ctx;
int r;
if (!f.file)
if (!fd_file(f))
return -EINVAL;
r = amdgpu_file_to_fpriv(f.file, &fpriv);
r = amdgpu_file_to_fpriv(fd_file(f), &fpriv);
if (r) {
fdput(f);
return r;

6
drivers/gpu/drm/drm_syncobj.c
View File

@ -715,16 +715,16 @@ static int drm_syncobj_fd_to_handle(struct drm_file *file_private,
struct fd f = fdget(fd);
int ret;
if (!f.file)
if (!fd_file(f))
return -EINVAL;
if (f.file->f_op != &drm_syncobj_file_fops) {
if (fd_file(f)->f_op != &drm_syncobj_file_fops) {
fdput(f);
return -EINVAL;
}
/* take a reference to put in the idr */
syncobj = f.file->private_data;
syncobj = fd_file(f)->private_data;
drm_syncobj_get(syncobj);
idr_preload(GFP_KERNEL);

6
drivers/infiniband/core/ucma.c
View File

@ -1624,13 +1624,13 @@ static ssize_t ucma_migrate_id(struct ucma_file *new_file,
/* Get current fd to protect against it being closed */
f = fdget(cmd.fd);
if (!f.file)
if (!fd_file(f))
return -ENOENT;
if (f.file->f_op != &ucma_fops) {
if (fd_file(f)->f_op != &ucma_fops) {
ret = -EINVAL;
goto file_put;
}
cur_file = f.file->private_data;
cur_file = fd_file(f)->private_data;
/* Validate current fd and prevent destruction of id. */
ctx = ucma_get_ctx(cur_file, cmd.id);

10
drivers/infiniband/core/uverbs_cmd.c
View File

@ -572,7 +572,7 @@ static int ib_uverbs_open_xrcd(struct uverbs_attr_bundle *attrs)
struct inode *inode = NULL;
int new_xrcd = 0;
struct ib_device *ib_dev;
struct fd f = {};
struct fd f = EMPTY_FD;
int ret;
ret = uverbs_request(attrs, &cmd, sizeof(cmd));
@ -584,12 +584,12 @@ static int ib_uverbs_open_xrcd(struct uverbs_attr_bundle *attrs)
if (cmd.fd != -1) {
/* search for file descriptor */
f = fdget(cmd.fd);
if (!f.file) {
if (!fd_file(f)) {
ret = -EBADF;
goto err_tree_mutex_unlock;
}
inode = file_inode(f.file);
inode = file_inode(fd_file(f));
xrcd = find_xrcd(ibudev, inode);
if (!xrcd && !(cmd.oflags & O_CREAT)) {
/* no file descriptor. Need CREATE flag */
@ -632,7 +632,7 @@ static int ib_uverbs_open_xrcd(struct uverbs_attr_bundle *attrs)
atomic_inc(&xrcd->usecnt);
}
if (f.file)
if (fd_file(f))
fdput(f);
mutex_unlock(&ibudev->xrcd_tree_mutex);
@ -648,7 +648,7 @@ err:
uobj_alloc_abort(&obj->uobject, attrs);
err_tree_mutex_unlock:
if (f.file)
if (fd_file(f))
fdput(f);
mutex_unlock(&ibudev->xrcd_tree_mutex);

6
drivers/media/mc/mc-request.c
View File

@ -254,12 +254,12 @@ media_request_get_by_fd(struct media_device *mdev, int request_fd)
return ERR_PTR(-EBADR);
f = fdget(request_fd);
if (!f.file)
if (!fd_file(f))
goto err_no_req_fd;
if (f.file->f_op != &request_fops)
if (fd_file(f)->f_op != &request_fops)
goto err_fput;
req = f.file->private_data;
req = fd_file(f)->private_data;
if (req->mdev != mdev)
goto err_fput;

8
drivers/media/rc/lirc_dev.c
View File

@ -820,20 +820,20 @@ struct rc_dev *rc_dev_get_from_fd(int fd, bool write)
struct lirc_fh *fh;
struct rc_dev *dev;
if (!f.file)
if (!fd_file(f))
return ERR_PTR(-EBADF);
if (f.file->f_op != &lirc_fops) {
if (fd_file(f)->f_op != &lirc_fops) {
fdput(f);
return ERR_PTR(-EINVAL);
}
if (write && !(f.file->f_mode & FMODE_WRITE)) {
if (write && !(fd_file(f)->f_mode & FMODE_WRITE)) {
fdput(f);
return ERR_PTR(-EPERM);
}
fh = f.file->private_data;
fh = fd_file(f)->private_data;
dev = fh->rc;
get_device(&dev->dev);

6
drivers/vfio/group.c
View File

@ -112,7 +112,7 @@ static int vfio_group_ioctl_set_container(struct vfio_group *group,
return -EFAULT;
f = fdget(fd);
if (!f.file)
if (!fd_file(f))
return -EBADF;
mutex_lock(&group->group_lock);
@ -125,13 +125,13 @@ static int vfio_group_ioctl_set_container(struct vfio_group *group,
goto out_unlock;
}
container = vfio_container_from_file(f.file);
container = vfio_container_from_file(fd_file(f));
if (container) {
ret = vfio_container_attach_group(container, group);
goto out_unlock;
}
iommufd = iommufd_ctx_from_file(f.file);
iommufd = iommufd_ctx_from_file(fd_file(f));
if (!IS_ERR(iommufd)) {
if (IS_ENABLED(CONFIG_VFIO_NOIOMMU) &&
group->type == VFIO_NO_IOMMU)

6
drivers/vfio/virqfd.c
View File

@ -134,12 +134,12 @@ int vfio_virqfd_enable(void *opaque,
INIT_WORK(&virqfd->flush_inject, virqfd_flush_inject);
irqfd = fdget(fd);
if (!irqfd.file) {
if (!fd_file(irqfd)) {
ret = -EBADF;
goto err_fd;
}
ctx = eventfd_ctx_fileget(irqfd.file);
ctx = eventfd_ctx_fileget(fd_file(irqfd));
if (IS_ERR(ctx)) {
ret = PTR_ERR(ctx);
goto err_ctx;
@ -171,7 +171,7 @@ int vfio_virqfd_enable(void *opaque,
init_waitqueue_func_entry(&virqfd->wait, virqfd_wakeup);
init_poll_funcptr(&virqfd->pt, virqfd_ptable_queue_proc);
events = vfs_poll(irqfd.file, &virqfd->pt);
events = vfs_poll(fd_file(irqfd), &virqfd->pt);
/*
* Check if there was an event already pending on the eventfd

6
drivers/virt/acrn/irqfd.c
View File

@ -125,12 +125,12 @@ static int acrn_irqfd_assign(struct acrn_vm *vm, struct acrn_irqfd *args)
INIT_WORK(&irqfd->shutdown, hsm_irqfd_shutdown_work);
f = fdget(args->fd);
if (!f.file) {
if (!fd_file(f)) {
ret = -EBADF;
goto out;
}
eventfd = eventfd_ctx_fileget(f.file);
eventfd = eventfd_ctx_fileget(fd_file(f));
if (IS_ERR(eventfd)) {
ret = PTR_ERR(eventfd);
goto fail;
@ -157,7 +157,7 @@ static int acrn_irqfd_assign(struct acrn_vm *vm, struct acrn_irqfd *args)
mutex_unlock(&vm->irqfds_lock);
/* Check the pending event in this stage */
events = vfs_poll(f.file, &irqfd->pt);
events = vfs_poll(fd_file(f), &irqfd->pt);
if (events & EPOLLIN)
acrn_irqfd_inject(irqfd);

10
drivers/xen/privcmd.c
View File

@ -959,12 +959,12 @@ static int privcmd_irqfd_assign(struct privcmd_irqfd *irqfd)
INIT_WORK(&kirqfd->shutdown, irqfd_shutdown);
f = fdget(irqfd->fd);
if (!f.file) {
if (!fd_file(f)) {
ret = -EBADF;
goto error_kfree;
}
kirqfd->eventfd = eventfd_ctx_fileget(f.file);
kirqfd->eventfd = eventfd_ctx_fileget(fd_file(f));
if (IS_ERR(kirqfd->eventfd)) {
ret = PTR_ERR(kirqfd->eventfd);
goto error_fd_put;
@ -995,7 +995,7 @@ static int privcmd_irqfd_assign(struct privcmd_irqfd *irqfd)
* Check if there was an event already pending on the eventfd before we
* registered, and trigger it as if we didn't miss it.
*/
events = vfs_poll(f.file, &kirqfd->pt);
events = vfs_poll(fd_file(f), &kirqfd->pt);
if (events & EPOLLIN)
irqfd_inject(kirqfd);
@ -1345,12 +1345,12 @@ static int privcmd_ioeventfd_assign(struct privcmd_ioeventfd *ioeventfd)
return -ENOMEM;
f = fdget(ioeventfd->event_fd);
if (!f.file) {
if (!fd_file(f)) {
ret = -EBADF;
goto error_kfree;
}
kioeventfd->eventfd = eventfd_ctx_fileget(f.file);
kioeventfd->eventfd = eventfd_ctx_fileget(fd_file(f));
fdput(f);
if (IS_ERR(kioeventfd->eventfd)) {

4
fs/btrfs/ioctl.c
View File

@ -1310,12 +1310,12 @@ static noinline int __btrfs_ioctl_snap_create(struct file *file,
} else {
struct fd src = fdget(fd);
struct inode *src_inode;
if (!src.file) {
if (!fd_file(src)) {
ret = -EINVAL;
goto out_drop_write;
}
src_inode = file_inode(src.file);
src_inode = file_inode(fd_file(src));
if (src_inode->i_sb != file_inode(file)->i_sb) {
btrfs_info(BTRFS_I(file_inode(file))->root->fs_info,
"Snapshot src from another FS");

4
fs/eventfd.c
View File

@ -349,9 +349,9 @@ struct eventfd_ctx *eventfd_ctx_fdget(int fd)
{
struct eventfd_ctx *ctx;
struct fd f = fdget(fd);
if (!f.file)
if (!fd_file(f))
return ERR_PTR(-EBADF);
ctx = eventfd_ctx_fileget(f.file);
ctx = eventfd_ctx_fileget(fd_file(f));
fdput(f);
return ctx;
}

30
fs/eventpoll.c
View File

@ -2261,17 +2261,17 @@ int do_epoll_ctl(int epfd, int op, int fd, struct epoll_event *epds,
error = -EBADF;
f = fdget(epfd);
if (!f.file)
if (!fd_file(f))
goto error_return;
/* Get the "struct file *" for the target file */
tf = fdget(fd);
if (!tf.file)
if (!fd_file(tf))
goto error_fput;
/* The target file descriptor must support poll */
error = -EPERM;
if (!file_can_poll(tf.file))
if (!file_can_poll(fd_file(tf)))
goto error_tgt_fput;
/* Check if EPOLLWAKEUP is allowed */
@ -2284,7 +2284,7 @@ int do_epoll_ctl(int epfd, int op, int fd, struct epoll_event *epds,
* adding an epoll file descriptor inside itself.
*/
error = -EINVAL;
if (f.file == tf.file || !is_file_epoll(f.file))
if (fd_file(f) == fd_file(tf) || !is_file_epoll(fd_file(f)))
goto error_tgt_fput;
/*
@ -2295,7 +2295,7 @@ int do_epoll_ctl(int epfd, int op, int fd, struct epoll_event *epds,
if (ep_op_has_event(op) && (epds->events & EPOLLEXCLUSIVE)) {
if (op == EPOLL_CTL_MOD)
goto error_tgt_fput;
if (op == EPOLL_CTL_ADD && (is_file_epoll(tf.file) ||
if (op == EPOLL_CTL_ADD && (is_file_epoll(fd_file(tf)) ||
(epds->events & ~EPOLLEXCLUSIVE_OK_BITS)))
goto error_tgt_fput;
}
@ -2304,7 +2304,7 @@ int do_epoll_ctl(int epfd, int op, int fd, struct epoll_event *epds,
* At this point it is safe to assume that the "private_data" contains
* our own data structure.
*/
ep = f.file->private_data;
ep = fd_file(f)->private_data;
/*
* When we insert an epoll file descriptor inside another epoll file
@ -2325,16 +2325,16 @@ int do_epoll_ctl(int epfd, int op, int fd, struct epoll_event *epds,
if (error)
goto error_tgt_fput;
if (op == EPOLL_CTL_ADD) {
if (READ_ONCE(f.file->f_ep) || ep->gen == loop_check_gen ||
is_file_epoll(tf.file)) {
if (READ_ONCE(fd_file(f)->f_ep) || ep->gen == loop_check_gen ||
is_file_epoll(fd_file(tf))) {
mutex_unlock(&ep->mtx);
error = epoll_mutex_lock(&epnested_mutex, 0, nonblock);
if (error)
goto error_tgt_fput;
loop_check_gen++;
full_check = 1;
if (is_file_epoll(tf.file)) {
tep = tf.file->private_data;
if (is_file_epoll(fd_file(tf))) {
tep = fd_file(tf)->private_data;
error = -ELOOP;
if (ep_loop_check(ep, tep) != 0)
goto error_tgt_fput;
@ -2350,14 +2350,14 @@ int do_epoll_ctl(int epfd, int op, int fd, struct epoll_event *epds,
* above, we can be sure to be able to use the item looked up by
* ep_find() till we release the mutex.
*/
epi = ep_find(ep, tf.file, fd);
epi = ep_find(ep, fd_file(tf), fd);
error = -EINVAL;
switch (op) {
case EPOLL_CTL_ADD:
if (!epi) {
epds->events |= EPOLLERR | EPOLLHUP;
error = ep_insert(ep, epds, tf.file, fd, full_check);
error = ep_insert(ep, epds, fd_file(tf), fd, full_check);
} else
error = -EEXIST;
break;
@ -2438,7 +2438,7 @@ static int do_epoll_wait(int epfd, struct epoll_event __user *events,
/* Get the "struct file *" for the eventpoll file */
f = fdget(epfd);
if (!f.file)
if (!fd_file(f))
return -EBADF;
/*
@ -2446,14 +2446,14 @@ static int do_epoll_wait(int epfd, struct epoll_event __user *events,
* the user passed to us _is_ an eventpoll file.
*/
error = -EINVAL;
if (!is_file_epoll(f.file))
if (!is_file_epoll(fd_file(f)))
goto error_fput;
/*
* At this point it is safe to assume that the "private_data" contains
* our own data structure.
*/
ep = f.file->private_data;
ep = fd_file(f)->private_data;
/* Time to fish for events ... */
error = ep_poll(ep, events, maxevents, to);

6
fs/ext4/ioctl.c
View File

@ -1343,10 +1343,10 @@ group_extend_out:
me.moved_len = 0;
donor = fdget(me.donor_fd);
if (!donor.file)
if (!fd_file(donor))
return -EBADF;
if (!(donor.file->f_mode & FMODE_WRITE)) {
if (!(fd_file(donor)->f_mode & FMODE_WRITE)) {
err = -EBADF;
goto mext_out;
}
@ -1367,7 +1367,7 @@ group_extend_out:
if (err)
goto mext_out;
err = ext4_move_extents(filp, donor.file, me.orig_start,
err = ext4_move_extents(filp, fd_file(donor), me.orig_start,
me.donor_start, me.len, &me.moved_len);
mnt_drop_write_file(filp);

6
fs/f2fs/file.c
View File

@ -3014,10 +3014,10 @@ static int __f2fs_ioc_move_range(struct file *filp,
return -EBADF;
dst = fdget(range->dst_fd);
if (!dst.file)
if (!fd_file(dst))
return -EBADF;
if (!(dst.file->f_mode & FMODE_WRITE)) {
if (!(fd_file(dst)->f_mode & FMODE_WRITE)) {
err = -EBADF;
goto err_out;
}
@ -3026,7 +3026,7 @@ static int __f2fs_ioc_move_range(struct file *filp,
if (err)
goto err_out;
err = f2fs_move_file_range(filp, range->pos_in, dst.file,
err = f2fs_move_file_range(filp, range->pos_in, fd_file(dst),
range->pos_out, range->len);
mnt_drop_write_file(filp);

38
fs/fcntl.c
View File

@ -405,7 +405,7 @@ static long f_dupfd_query(int fd, struct file *filp)
* overkill, but given our lockless file pointer lookup, the
* alternatives are complicated.
*/
return f.file == filp;
return fd_file(f) == filp;
}
/* Let the caller figure out whether a given file was just created. */
@ -573,17 +573,17 @@ SYSCALL_DEFINE3(fcntl, unsigned int, fd, unsigned int, cmd, unsigned long, arg)
struct fd f = fdget_raw(fd);
long err = -EBADF;
if (!f.file)
if (!fd_file(f))
goto out;
if (unlikely(f.file->f_mode & FMODE_PATH)) {
if (unlikely(fd_file(f)->f_mode & FMODE_PATH)) {
if (!check_fcntl_cmd(cmd))
goto out1;
}
err = security_file_fcntl(f.file, cmd, arg);
err = security_file_fcntl(fd_file(f), cmd, arg);
if (!err)
err = do_fcntl(fd, cmd, arg, f.file);
err = do_fcntl(fd, cmd, arg, fd_file(f));
out1:
fdput(f);
@ -600,15 +600,15 @@ SYSCALL_DEFINE3(fcntl64, unsigned int, fd, unsigned int, cmd,
struct flock64 flock;
long err = -EBADF;
if (!f.file)
if (!fd_file(f))
goto out;
if (unlikely(f.file->f_mode & FMODE_PATH)) {
if (unlikely(fd_file(f)->f_mode & FMODE_PATH)) {
if (!check_fcntl_cmd(cmd))
goto out1;
}
err = security_file_fcntl(f.file, cmd, arg);
err = security_file_fcntl(fd_file(f), cmd, arg);
if (err)
goto out1;
@ -618,7 +618,7 @@ SYSCALL_DEFINE3(fcntl64, unsigned int, fd, unsigned int, cmd,
err = -EFAULT;
if (copy_from_user(&flock, argp, sizeof(flock)))
break;
err = fcntl_getlk64(f.file, cmd, &flock);
err = fcntl_getlk64(fd_file(f), cmd, &flock);
if (!err && copy_to_user(argp, &flock, sizeof(flock)))
err = -EFAULT;
break;
@ -629,10 +629,10 @@ SYSCALL_DEFINE3(fcntl64, unsigned int, fd, unsigned int, cmd,
err = -EFAULT;
if (copy_from_user(&flock, argp, sizeof(flock)))
break;
err = fcntl_setlk64(fd, f.file, cmd, &flock);
err = fcntl_setlk64(fd, fd_file(f), cmd, &flock);
break;
default:
err = do_fcntl(fd, cmd, arg, f.file);
err = do_fcntl(fd, cmd, arg, fd_file(f));
break;
}
out1:
@ -737,15 +737,15 @@ static long do_compat_fcntl64(unsigned int fd, unsigned int cmd,
struct flock flock;
long err = -EBADF;
if (!f.file)
if (!fd_file(f))
return err;
if (unlikely(f.file->f_mode & FMODE_PATH)) {
if (unlikely(fd_file(f)->f_mode & FMODE_PATH)) {
if (!check_fcntl_cmd(cmd))
goto out_put;
}
err = security_file_fcntl(f.file, cmd, arg);
err = security_file_fcntl(fd_file(f), cmd, arg);
if (err)
goto out_put;
@ -754,7 +754,7 @@ static long do_compat_fcntl64(unsigned int fd, unsigned int cmd,
err = get_compat_flock(&flock, compat_ptr(arg));
if (err)
break;
err = fcntl_getlk(f.file, convert_fcntl_cmd(cmd), &flock);
err = fcntl_getlk(fd_file(f), convert_fcntl_cmd(cmd), &flock);
if (err)
break;
err = fixup_compat_flock(&flock);
@ -766,7 +766,7 @@ static long do_compat_fcntl64(unsigned int fd, unsigned int cmd,
err = get_compat_flock64(&flock, compat_ptr(arg));
if (err)
break;
err = fcntl_getlk(f.file, convert_fcntl_cmd(cmd), &flock);
err = fcntl_getlk(fd_file(f), convert_fcntl_cmd(cmd), &flock);
if (!err)
err = put_compat_flock64(&flock, compat_ptr(arg));
break;
@ -775,7 +775,7 @@ static long do_compat_fcntl64(unsigned int fd, unsigned int cmd,
err = get_compat_flock(&flock, compat_ptr(arg));
if (err)
break;
err = fcntl_setlk(fd, f.file, convert_fcntl_cmd(cmd), &flock);
err = fcntl_setlk(fd, fd_file(f), convert_fcntl_cmd(cmd), &flock);
break;
case F_SETLK64:
case F_SETLKW64:
@ -784,10 +784,10 @@ static long do_compat_fcntl64(unsigned int fd, unsigned int cmd,
err = get_compat_flock64(&flock, compat_ptr(arg));
if (err)
break;
err = fcntl_setlk(fd, f.file, convert_fcntl_cmd(cmd), &flock);
err = fcntl_setlk(fd, fd_file(f), convert_fcntl_cmd(cmd), &flock);
break;
default:
err = do_fcntl(fd, cmd, arg, f.file);
err = do_fcntl(fd, cmd, arg, fd_file(f));
break;
}
out_put:

4
fs/fhandle.c
View File

@ -140,9 +140,9 @@ static int get_path_from_fd(int fd, struct path *root)
spin_unlock(&fs->lock);
} else {
struct fd f = fdget(fd);
if (!f.file)
if (!fd_file(f))
return -EBADF;
*root = f.file->f_path;
*root = fd_file(f)->f_path;
path_get(root);
fdput(f);
}

26
fs/file.c
View File

@ -1124,7 +1124,7 @@ EXPORT_SYMBOL(task_lookup_next_fdget_rcu);
* The fput_needed flag returned by fget_light should be passed to the
* corresponding fput_light.
*/
static unsigned long __fget_light(unsigned int fd, fmode_t mask)
static inline struct fd __fget_light(unsigned int fd, fmode_t mask)
{
struct files_struct *files = current->files;
struct file *file;
@ -1141,22 +1141,22 @@ static unsigned long __fget_light(unsigned int fd, fmode_t mask)
if (likely(atomic_read_acquire(&files->count) == 1)) {
file = files_lookup_fd_raw(files, fd);
if (!file || unlikely(file->f_mode & mask))
return 0;
return (unsigned long)file;
return EMPTY_FD;
return BORROWED_FD(file);
} else {
file = __fget_files(files, fd, mask);
if (!file)
return 0;
return FDPUT_FPUT | (unsigned long)file;
return EMPTY_FD;
return CLONED_FD(file);
}
}
unsigned long __fdget(unsigned int fd)
struct fd fdget(unsigned int fd)
{
return __fget_light(fd, FMODE_PATH);
}
EXPORT_SYMBOL(__fdget);
EXPORT_SYMBOL(fdget);
unsigned long __fdget_raw(unsigned int fd)
struct fd fdget_raw(unsigned int fd)
{
return __fget_light(fd, 0);
}
@ -1177,16 +1177,16 @@ static inline bool file_needs_f_pos_lock(struct file *file)
(file_count(file) > 1 || file->f_op->iterate_shared);
}
unsigned long __fdget_pos(unsigned int fd)
struct fd fdget_pos(unsigned int fd)
{
unsigned long v = __fdget(fd);
struct file *file = (struct file *)(v & ~3);
struct fd f = fdget(fd);
struct file *file = fd_file(f);
if (file && file_needs_f_pos_lock(file)) {
v |= FDPUT_POS_UNLOCK;
f.word |= FDPUT_POS_UNLOCK;
mutex_lock(&file->f_pos_lock);
}
return v;
return f;
}
void __f_unlock_pos(struct file *f)

6
fs/fsopen.c
View File

@ -394,13 +394,13 @@ SYSCALL_DEFINE5(fsconfig,
}
f = fdget(fd);
if (!f.file)
if (!fd_file(f))
return -EBADF;
ret = -EINVAL;
if (f.file->f_op != &fscontext_fops)
if (fd_file(f)->f_op != &fscontext_fops)
goto out_f;
fc = f.file->private_data;
fc = fd_file(f)->private_data;
if (fc->ops == &legacy_fs_context_ops) {
switch (cmd) {
case FSCONFIG_SET_BINARY:

6
fs/fuse/dev.c
View File

@ -2329,15 +2329,15 @@ static long fuse_dev_ioctl_clone(struct file *file, __u32 __user *argp)
return -EFAULT;
f = fdget(oldfd);
if (!f.file)
if (!fd_file(f))
return -EINVAL;
/*
* Check against file->f_op because CUSE
* uses the same ioctl handler.
*/
if (f.file->f_op == file->f_op)
fud = fuse_get_dev(f.file);
if (fd_file(f)->f_op == file->f_op)
fud = fuse_get_dev(fd_file(f));
res = -EINVAL;
if (fud) {

30
fs/ioctl.c
View File

@ -235,9 +235,9 @@ static long ioctl_file_clone(struct file *dst_file, unsigned long srcfd,
loff_t cloned;
int ret;
if (!src_file.file)
if (!fd_file(src_file))
return -EBADF;
cloned = vfs_clone_file_range(src_file.file, off, dst_file, destoff,
cloned = vfs_clone_file_range(fd_file(src_file), off, dst_file, destoff,
olen, 0);
if (cloned < 0)
ret = cloned;
@ -895,16 +895,16 @@ SYSCALL_DEFINE3(ioctl, unsigned int, fd, unsigned int, cmd, unsigned long, arg)
struct fd f = fdget(fd);
int error;
if (!f.file)
if (!fd_file(f))
return -EBADF;
error = security_file_ioctl(f.file, cmd, arg);
error = security_file_ioctl(fd_file(f), cmd, arg);
if (error)
goto out;
error = do_vfs_ioctl(f.file, fd, cmd, arg);
error = do_vfs_ioctl(fd_file(f), fd, cmd, arg);
if (error == -ENOIOCTLCMD)
error = vfs_ioctl(f.file, cmd, arg);
error = vfs_ioctl(fd_file(f), cmd, arg);
out:
fdput(f);
@ -953,32 +953,32 @@ COMPAT_SYSCALL_DEFINE3(ioctl, unsigned int, fd, unsigned int, cmd,
struct fd f = fdget(fd);
int error;
if (!f.file)
if (!fd_file(f))
return -EBADF;
error = security_file_ioctl_compat(f.file, cmd, arg);
error = security_file_ioctl_compat(fd_file(f), cmd, arg);
if (error)
goto out;
switch (cmd) {
/* FICLONE takes an int argument, so don't use compat_ptr() */
case FICLONE:
error = ioctl_file_clone(f.file, arg, 0, 0, 0);
error = ioctl_file_clone(fd_file(f), arg, 0, 0, 0);
break;
#if defined(CONFIG_X86_64)
/* these get messy on amd64 due to alignment differences */
case FS_IOC_RESVSP_32:
case FS_IOC_RESVSP64_32:
error = compat_ioctl_preallocate(f.file, 0, compat_ptr(arg));
error = compat_ioctl_preallocate(fd_file(f), 0, compat_ptr(arg));
break;
case FS_IOC_UNRESVSP_32:
case FS_IOC_UNRESVSP64_32:
error = compat_ioctl_preallocate(f.file, FALLOC_FL_PUNCH_HOLE,
error = compat_ioctl_preallocate(fd_file(f), FALLOC_FL_PUNCH_HOLE,
compat_ptr(arg));
break;
case FS_IOC_ZERO_RANGE_32:
error = compat_ioctl_preallocate(f.file, FALLOC_FL_ZERO_RANGE,
error = compat_ioctl_preallocate(fd_file(f), FALLOC_FL_ZERO_RANGE,
compat_ptr(arg));
break;
#endif
@ -998,13 +998,13 @@ COMPAT_SYSCALL_DEFINE3(ioctl, unsigned int, fd, unsigned int, cmd,
* argument.
*/
default:
error = do_vfs_ioctl(f.file, fd, cmd,
error = do_vfs_ioctl(fd_file(f), fd, cmd,
(unsigned long)compat_ptr(arg));
if (error != -ENOIOCTLCMD)
break;
if (f.file->f_op->compat_ioctl)
error = f.file->f_op->compat_ioctl(f.file, cmd, arg);
if (fd_file(f)->f_op->compat_ioctl)
error = fd_file(f)->f_op->compat_ioctl(fd_file(f), cmd, arg);
if (error == -ENOIOCTLCMD)
error = -ENOTTY;
break;

4
fs/kernel_read_file.c
View File

@ -178,10 +178,10 @@ ssize_t kernel_read_file_from_fd(int fd, loff_t offset, void **buf,
struct fd f = fdget(fd);
ssize_t ret = -EBADF;
if (!f.file || !(f.file->f_mode & FMODE_READ))
if (!fd_file(f) || !(fd_file(f)->f_mode & FMODE_READ))
goto out;
ret = kernel_read_file(f.file, offset, buf, buf_size, file_size, id);
ret = kernel_read_file(fd_file(f), offset, buf, buf_size, file_size, id);
out:
fdput(f);
return ret;

14
fs/locks.c
View File

@ -2157,15 +2157,15 @@ SYSCALL_DEFINE2(flock, unsigned int, fd, unsigned int, cmd)
error = -EBADF;
f = fdget(fd);
if (!f.file)
if (!fd_file(f))
return error;
if (type != F_UNLCK && !(f.file->f_mode & (FMODE_READ | FMODE_WRITE)))
if (type != F_UNLCK && !(fd_file(f)->f_mode & (FMODE_READ | FMODE_WRITE)))
goto out_putf;
flock_make_lock(f.file, &fl, type);
flock_make_lock(fd_file(f), &fl, type);
error = security_file_lock(f.file, fl.c.flc_type);
error = security_file_lock(fd_file(f), fl.c.flc_type);
if (error)
goto out_putf;
@ -2173,12 +2173,12 @@ SYSCALL_DEFINE2(flock, unsigned int, fd, unsigned int, cmd)
if (can_sleep)
fl.c.flc_flags |= FL_SLEEP;
if (f.file->f_op->flock)
error = f.file->f_op->flock(f.file,
if (fd_file(f)->f_op->flock)
error = fd_file(f)->f_op->flock(fd_file(f),
(can_sleep) ? F_SETLKW : F_SETLK,
&fl);
else
error = locks_lock_file_wait(f.file, &fl);
error = locks_lock_file_wait(fd_file(f), &fl);
locks_release_private(&fl);
out_putf:

10
fs/namei.c
View File

@ -2506,25 +2506,25 @@ static const char *path_init(struct nameidata *nd, unsigned flags)
struct fd f = fdget_raw(nd->dfd);
struct dentry *dentry;
if (!f.file)
if (!fd_file(f))
return ERR_PTR(-EBADF);
if (flags & LOOKUP_LINKAT_EMPTY) {
if (f.file->f_cred != current_cred() &&
!ns_capable(f.file->f_cred->user_ns, CAP_DAC_READ_SEARCH)) {
if (fd_file(f)->f_cred != current_cred() &&
!ns_capable(fd_file(f)->f_cred->user_ns, CAP_DAC_READ_SEARCH)) {
fdput(f);
return ERR_PTR(-ENOENT);
}
}
dentry = f.file->f_path.dentry;
dentry = fd_file(f)->f_path.dentry;
if (*s && unlikely(!d_can_lookup(dentry))) {
fdput(f);
return ERR_PTR(-ENOTDIR);
}
nd->path = f.file->f_path;
nd->path = fd_file(f)->f_path;
if (flags & LOOKUP_RCU) {
nd->inode = nd->path.dentry->d_inode;
nd->seq = read_seqcount_begin(&nd->path.dentry->d_seq);

18
fs/namespace.c
View File

@ -4134,14 +4134,14 @@ SYSCALL_DEFINE3(fsmount, int, fs_fd, unsigned int, flags,
}
f = fdget(fs_fd);
if (!f.file)
if (!fd_file(f))
return -EBADF;
ret = -EINVAL;
if (f.file->f_op != &fscontext_fops)
if (fd_file(f)->f_op != &fscontext_fops)
goto err_fsfd;
fc = f.file->private_data;
fc = fd_file(f)->private_data;
ret = mutex_lock_interruptible(&fc->uapi_mutex);
if (ret < 0)
@ -4684,15 +4684,15 @@ static int build_mount_idmapped(const struct mount_attr *attr, size_t usize,
return -EINVAL;
f = fdget(attr->userns_fd);
if (!f.file)
if (!fd_file(f))
return -EBADF;
if (!proc_ns_file(f.file)) {
if (!proc_ns_file(fd_file(f))) {
err = -EINVAL;
goto out_fput;
}
ns = get_proc_ns(file_inode(f.file));
ns = get_proc_ns(file_inode(fd_file(f)));
if (ns->ops->type != CLONE_NEWUSER) {
err = -EINVAL;
goto out_fput;
@ -5292,13 +5292,13 @@ static struct mnt_namespace *grab_requested_mnt_ns(const struct mnt_id_req *kreq
struct ns_common *ns;
CLASS(fd, f)(kreq->spare);
if (!f.file)
if (fd_empty(f))
return ERR_PTR(-EBADF);
if (!proc_ns_file(f.file))
if (!proc_ns_file(fd_file(f)))
return ERR_PTR(-EINVAL);
ns = get_proc_ns(file_inode(f.file));
ns = get_proc_ns(file_inode(fd_file(f)));
if (ns->ops->type != CLONE_NEWNS)
return ERR_PTR(-EINVAL);

12
fs/notify/fanotify/fanotify_user.c
View File

@ -1006,17 +1006,17 @@ static int fanotify_find_path(int dfd, const char __user *filename,
struct fd f = fdget(dfd);
ret = -EBADF;
if (!f.file)
if (!fd_file(f))
goto out;
ret = -ENOTDIR;
if ((flags & FAN_MARK_ONLYDIR) &&
!(S_ISDIR(file_inode(f.file)->i_mode))) {
!(S_ISDIR(file_inode(fd_file(f))->i_mode))) {
fdput(f);
goto out;
}
*path = f.file->f_path;
*path = fd_file(f)->f_path;
path_get(path);
fdput(f);
} else {
@ -1753,14 +1753,14 @@ static int do_fanotify_mark(int fanotify_fd, unsigned int flags, __u64 mask,
}
f = fdget(fanotify_fd);
if (unlikely(!f.file))
if (unlikely(!fd_file(f)))
return -EBADF;
/* verify that this is indeed an fanotify instance */
ret = -EINVAL;
if (unlikely(f.file->f_op != &fanotify_fops))
if (unlikely(fd_file(f)->f_op != &fanotify_fops))
goto fput_and_out;
group = f.file->private_data;
group = fd_file(f)->private_data;
/*
* An unprivileged user is not allowed to setup mount nor filesystem

12
fs/notify/inotify/inotify_user.c
View File

@ -753,7 +753,7 @@ SYSCALL_DEFINE3(inotify_add_watch, int, fd, const char __user *, pathname,
return -EINVAL;
f = fdget(fd);
if (unlikely(!f.file))
if (unlikely(!fd_file(f)))
return -EBADF;
/* IN_MASK_ADD and IN_MASK_CREATE don't make sense together */
@ -763,7 +763,7 @@ SYSCALL_DEFINE3(inotify_add_watch, int, fd, const char __user *, pathname,
}
/* verify that this is indeed an inotify instance */
if (unlikely(f.file->f_op != &inotify_fops)) {
if (unlikely(fd_file(f)->f_op != &inotify_fops)) {
ret = -EINVAL;
goto fput_and_out;
}
@ -780,7 +780,7 @@ SYSCALL_DEFINE3(inotify_add_watch, int, fd, const char __user *, pathname,
/* inode held in place by reference to path; group by fget on fd */
inode = path.dentry->d_inode;
group = f.file->private_data;
group = fd_file(f)->private_data;
/* create/update an inode mark */
ret = inotify_update_watch(group, inode, mask);
@ -798,14 +798,14 @@ SYSCALL_DEFINE2(inotify_rm_watch, int, fd, __s32, wd)
int ret = -EINVAL;
f = fdget(fd);
if (unlikely(!f.file))
if (unlikely(!fd_file(f)))
return -EBADF;
/* verify that this is indeed an inotify instance */
if (unlikely(f.file->f_op != &inotify_fops))
if (unlikely(fd_file(f)->f_op != &inotify_fops))
goto out;
group = f.file->private_data;
group = fd_file(f)->private_data;
i_mark = inotify_idr_find(group, wd);
if (unlikely(!i_mark))

6
fs/ocfs2/cluster/heartbeat.c
View File

@ -1785,17 +1785,17 @@ static ssize_t o2hb_region_dev_store(struct config_item *item,
goto out;
f = fdget(fd);
if (f.file == NULL)
if (fd_file(f) == NULL)
goto out;
if (reg->hr_blocks == 0 || reg->hr_start_block == 0 ||
reg->hr_block_bytes == 0)
goto out2;
if (!S_ISBLK(f.file->f_mapping->host->i_mode))
if (!S_ISBLK(fd_file(f)->f_mapping->host->i_mode))
goto out2;
reg->hr_bdev_file = bdev_file_open_by_dev(f.file->f_mapping->host->i_rdev,
reg->hr_bdev_file = bdev_file_open_by_dev(fd_file(f)->f_mapping->host->i_rdev,
BLK_OPEN_WRITE | BLK_OPEN_READ, NULL, NULL);
if (IS_ERR(reg->hr_bdev_file)) {
ret = PTR_ERR(reg->hr_bdev_file);

24
fs/open.c
View File

@ -193,10 +193,10 @@ long do_sys_ftruncate(unsigned int fd, loff_t length, int small)
if (length < 0)
return -EINVAL;
f = fdget(fd);
if (!f.file)
if (!fd_file(f))
return -EBADF;
error = do_ftruncate(f.file, length, small);
error = do_ftruncate(fd_file(f), length, small);
fdput(f);
return error;
@ -352,8 +352,8 @@ int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len)
struct fd f = fdget(fd);
int error = -EBADF;
if (f.file) {
error = vfs_fallocate(f.file, mode, offset, len);
if (fd_file(f)) {
error = vfs_fallocate(fd_file(f), mode, offset, len);
fdput(f);
}
return error;
@ -584,16 +584,16 @@ SYSCALL_DEFINE1(fchdir, unsigned int, fd)
int error;
error = -EBADF;
if (!f.file)
if (!fd_file(f))
goto out;
error = -ENOTDIR;
if (!d_can_lookup(f.file->f_path.dentry))
if (!d_can_lookup(fd_file(f)->f_path.dentry))
goto out_putf;
error = file_permission(f.file, MAY_EXEC | MAY_CHDIR);
error = file_permission(fd_file(f), MAY_EXEC | MAY_CHDIR);
if (!error)
set_fs_pwd(current->fs, &f.file->f_path);
set_fs_pwd(current->fs, &fd_file(f)->f_path);
out_putf:
fdput(f);
out:
@ -674,8 +674,8 @@ SYSCALL_DEFINE2(fchmod, unsigned int, fd, umode_t, mode)
struct fd f = fdget(fd);
int err = -EBADF;
if (f.file) {
err = vfs_fchmod(f.file, mode);
if (fd_file(f)) {
err = vfs_fchmod(fd_file(f), mode);
fdput(f);
}
return err;
@ -868,8 +868,8 @@ int ksys_fchown(unsigned int fd, uid_t user, gid_t group)
struct fd f = fdget(fd);
int error = -EBADF;
if (f.file) {
error = vfs_fchown(f.file, user, group);
if (fd_file(f)) {
error = vfs_fchown(fd_file(f), user, group);
fdput(f);
}
return error;

68
fs/overlayfs/file.c
View File

@ -93,11 +93,11 @@ static int ovl_real_fdget_meta(const struct file *file, struct fd *real,
bool allow_meta)
{
struct dentry *dentry = file_dentry(file);
struct file *realfile = file->private_data;
struct path realpath;
int err;
real->flags = 0;
real->file = file->private_data;
real->word = (unsigned long)realfile;
if (allow_meta) {
ovl_path_real(dentry, &realpath);
@ -113,16 +113,17 @@ static int ovl_real_fdget_meta(const struct file *file, struct fd *real,
return -EIO;
/* Has it been copied up since we'd opened it? */
if (unlikely(file_inode(real->file) != d_inode(realpath.dentry))) {
real->flags = FDPUT_FPUT;
real->file = ovl_open_realfile(file, &realpath);
return PTR_ERR_OR_ZERO(real->file);
if (unlikely(file_inode(realfile) != d_inode(realpath.dentry))) {
struct file *f = ovl_open_realfile(file, &realpath);
if (IS_ERR(f))
return PTR_ERR(f);
real->word = (unsigned long)ovl_open_realfile(file, &realpath) | FDPUT_FPUT;
return 0;
}
/* Did the flags change since open? */
if (unlikely((file->f_flags ^ real->file->f_flags) & ~OVL_OPEN_FLAGS))
return ovl_change_flags(real->file, file->f_flags);
if (unlikely((file->f_flags ^ realfile->f_flags) & ~OVL_OPEN_FLAGS))
return ovl_change_flags(realfile, file->f_flags);
return 0;
}
@ -130,10 +131,11 @@ static int ovl_real_fdget_meta(const struct file *file, struct fd *real,
static int ovl_real_fdget(const struct file *file, struct fd *real)
{
if (d_is_dir(file_dentry(file))) {
real->flags = 0;
real->file = ovl_dir_real_file(file, false);
return PTR_ERR_OR_ZERO(real->file);
struct file *f = ovl_dir_real_file(file, false);
if (IS_ERR(f))
return PTR_ERR(f);
real->word = (unsigned long)f;
return 0;
}
return ovl_real_fdget_meta(file, real, false);
@ -209,13 +211,13 @@ static loff_t ovl_llseek(struct file *file, loff_t offset, int whence)
* files, so we use the real file to perform seeks.
*/
ovl_inode_lock(inode);
real.file->f_pos = file->f_pos;
fd_file(real)->f_pos = file->f_pos;
old_cred = ovl_override_creds(inode->i_sb);
ret = vfs_llseek(real.file, offset, whence);
ret = vfs_llseek(fd_file(real), offset, whence);
revert_creds(old_cred);
file->f_pos = real.file->f_pos;
file->f_pos = fd_file(real)->f_pos;
ovl_inode_unlock(inode);
fdput(real);
@ -275,7 +277,7 @@ static ssize_t ovl_read_iter(struct kiocb *iocb, struct iov_iter *iter)
if (ret)
return ret;
ret = backing_file_read_iter(real.file, iter, iocb, iocb->ki_flags,
ret = backing_file_read_iter(fd_file(real), iter, iocb, iocb->ki_flags,
&ctx);
fdput(real);
@ -314,7 +316,7 @@ static ssize_t ovl_write_iter(struct kiocb *iocb, struct iov_iter *iter)
* this property in case it is set by the issuer.
*/
ifl &= ~IOCB_DIO_CALLER_COMP;
ret = backing_file_write_iter(real.file, iter, iocb, ifl, &ctx);
ret = backing_file_write_iter(fd_file(real), iter, iocb, ifl, &ctx);
fdput(real);
out_unlock:
@ -339,7 +341,7 @@ static ssize_t ovl_splice_read(struct file *in, loff_t *ppos,
if (ret)
return ret;
ret = backing_file_splice_read(real.file, ppos, pipe, len, flags, &ctx);
ret = backing_file_splice_read(fd_file(real), ppos, pipe, len, flags, &ctx);
fdput(real);
return ret;
@ -348,7 +350,7 @@ static ssize_t ovl_splice_read(struct file *in, loff_t *ppos,
/*
* Calling iter_file_splice_write() directly from overlay's f_op may deadlock
* due to lock order inversion between pipe->mutex in iter_file_splice_write()
* and file_start_write(real.file) in ovl_write_iter().
* and file_start_write(fd_file(real)) in ovl_write_iter().
*
* So do everything ovl_write_iter() does and call iter_file_splice_write() on
* the real file.
@ -373,7 +375,7 @@ static ssize_t ovl_splice_write(struct pipe_inode_info *pipe, struct file *out,
if (ret)
goto out_unlock;
ret = backing_file_splice_write(pipe, real.file, ppos, len, flags, &ctx);
ret = backing_file_splice_write(pipe, fd_file(real), ppos, len, flags, &ctx);
fdput(real);
out_unlock:
@ -397,9 +399,9 @@ static int ovl_fsync(struct file *file, loff_t start, loff_t end, int datasync)
return ret;
/* Don't sync lower file for fear of receiving EROFS error */
if (file_inode(real.file) == ovl_inode_upper(file_inode(file))) {
if (file_inode(fd_file(real)) == ovl_inode_upper(file_inode(file))) {
old_cred = ovl_override_creds(file_inode(file)->i_sb);
ret = vfs_fsync_range(real.file, start, end, datasync);
ret = vfs_fsync_range(fd_file(real), start, end, datasync);
revert_creds(old_cred);
}
@ -439,7 +441,7 @@ static long ovl_fallocate(struct file *file, int mode, loff_t offset, loff_t len
goto out_unlock;
old_cred = ovl_override_creds(file_inode(file)->i_sb);
ret = vfs_fallocate(real.file, mode, offset, len);
ret = vfs_fallocate(fd_file(real), mode, offset, len);
revert_creds(old_cred);
/* Update size */
@ -464,7 +466,7 @@ static int ovl_fadvise(struct file *file, loff_t offset, loff_t len, int advice)
return ret;
old_cred = ovl_override_creds(file_inode(file)->i_sb);
ret = vfs_fadvise(real.file, offset, len, advice);
ret = vfs_fadvise(fd_file(real), offset, len, advice);
revert_creds(old_cred);
fdput(real);
@ -509,18 +511,18 @@ static loff_t ovl_copyfile(struct file *file_in, loff_t pos_in,
old_cred = ovl_override_creds(file_inode(file_out)->i_sb);
switch (op) {
case OVL_COPY:
ret = vfs_copy_file_range(real_in.file, pos_in,
real_out.file, pos_out, len, flags);
ret = vfs_copy_file_range(fd_file(real_in), pos_in,
fd_file(real_out), pos_out, len, flags);
break;
case OVL_CLONE:
ret = vfs_clone_file_range(real_in.file, pos_in,
real_out.file, pos_out, len, flags);
ret = vfs_clone_file_range(fd_file(real_in), pos_in,
fd_file(real_out), pos_out, len, flags);
break;
case OVL_DEDUPE:
ret = vfs_dedupe_file_range_one(real_in.file, pos_in,
real_out.file, pos_out, len,
ret = vfs_dedupe_file_range_one(fd_file(real_in), pos_in,
fd_file(real_out), pos_out, len,
flags);
break;
}
@ -583,9 +585,9 @@ static int ovl_flush(struct file *file, fl_owner_t id)
if (err)
return err;
if (real.file->f_op->flush) {
if (fd_file(real)->f_op->flush) {
old_cred = ovl_override_creds(file_inode(file)->i_sb);
err = real.file->f_op->flush(real.file, id);
err = fd_file(real)->f_op->flush(fd_file(real), id);
revert_creds(old_cred);
}
fdput(real);

8
fs/quota/quota.c
View File

@ -980,7 +980,7 @@ SYSCALL_DEFINE4(quotactl_fd, unsigned int, fd, unsigned int, cmd,
int ret;
f = fdget_raw(fd);
if (!f.file)
if (!fd_file(f))
return -EBADF;
ret = -EINVAL;
@ -988,12 +988,12 @@ SYSCALL_DEFINE4(quotactl_fd, unsigned int, fd, unsigned int, cmd,
goto out;
if (quotactl_cmd_write(cmds)) {
ret = mnt_want_write(f.file->f_path.mnt);
ret = mnt_want_write(fd_file(f)->f_path.mnt);
if (ret)
goto out;
}
sb = f.file->f_path.mnt->mnt_sb;
sb = fd_file(f)->f_path.mnt->mnt_sb;
if (quotactl_cmd_onoff(cmds))
down_write(&sb->s_umount);
else
@ -1007,7 +1007,7 @@ SYSCALL_DEFINE4(quotactl_fd, unsigned int, fd, unsigned int, cmd,
up_read(&sb->s_umount);
if (quotactl_cmd_write(cmds))
mnt_drop_write(f.file->f_path.mnt);
mnt_drop_write(fd_file(f)->f_path.mnt);
out:
fdput(f);
return ret;

118
fs/read_write.c
View File

@ -387,12 +387,12 @@ static off_t ksys_lseek(unsigned int fd, off_t offset, unsigned int whence)
{
off_t retval;
struct fd f = fdget_pos(fd);
if (!f.file)
if (!fd_file(f))
return -EBADF;
retval = -EINVAL;
if (whence <= SEEK_MAX) {
loff_t res = vfs_llseek(f.file, offset, whence);
loff_t res = vfs_llseek(fd_file(f), offset, whence);
retval = res;
if (res != (loff_t)retval)
retval = -EOVERFLOW; /* LFS: should only happen on 32 bit platforms */
@ -423,14 +423,14 @@ SYSCALL_DEFINE5(llseek, unsigned int, fd, unsigned long, offset_high,
struct fd f = fdget_pos(fd);
loff_t offset;
if (!f.file)
if (!fd_file(f))
return -EBADF;
retval = -EINVAL;
if (whence > SEEK_MAX)
goto out_putf;
offset = vfs_llseek(f.file, ((loff_t) offset_high << 32) | offset_low,
offset = vfs_llseek(fd_file(f), ((loff_t) offset_high << 32) | offset_low,
whence);
retval = (int)offset;
@ -703,15 +703,15 @@ ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count)
struct fd f = fdget_pos(fd);
ssize_t ret = -EBADF;
if (f.file) {
loff_t pos, *ppos = file_ppos(f.file);
if (fd_file(f)) {
loff_t pos, *ppos = file_ppos(fd_file(f));
if (ppos) {
pos = *ppos;
ppos = &pos;
}
ret = vfs_read(f.file, buf, count, ppos);
ret = vfs_read(fd_file(f), buf, count, ppos);
if (ret >= 0 && ppos)
f.file->f_pos = pos;
fd_file(f)->f_pos = pos;
fdput_pos(f);
}
return ret;
@ -727,15 +727,15 @@ ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count)
struct fd f = fdget_pos(fd);
ssize_t ret = -EBADF;
if (f.file) {
loff_t pos, *ppos = file_ppos(f.file);
if (fd_file(f)) {
loff_t pos, *ppos = file_ppos(fd_file(f));
if (ppos) {
pos = *ppos;
ppos = &pos;
}
ret = vfs_write(f.file, buf, count, ppos);
ret = vfs_write(fd_file(f), buf, count, ppos);
if (ret >= 0 && ppos)
f.file->f_pos = pos;
fd_file(f)->f_pos = pos;
fdput_pos(f);
}
@ -758,10 +758,10 @@ ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count,
return -EINVAL;
f = fdget(fd);
if (f.file) {
if (fd_file(f)) {
ret = -ESPIPE;
if (f.file->f_mode & FMODE_PREAD)
ret = vfs_read(f.file, buf, count, &pos);
if (fd_file(f)->f_mode & FMODE_PREAD)
ret = vfs_read(fd_file(f), buf, count, &pos);
fdput(f);
}
@ -792,10 +792,10 @@ ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf,
return -EINVAL;
f = fdget(fd);
if (f.file) {
if (fd_file(f)) {
ret = -ESPIPE;
if (f.file->f_mode & FMODE_PWRITE)
ret = vfs_write(f.file, buf, count, &pos);
if (fd_file(f)->f_mode & FMODE_PWRITE)
ret = vfs_write(fd_file(f), buf, count, &pos);
fdput(f);
}
@ -1078,15 +1078,15 @@ static ssize_t do_readv(unsigned long fd, const struct iovec __user *vec,
struct fd f = fdget_pos(fd);
ssize_t ret = -EBADF;
if (f.file) {
loff_t pos, *ppos = file_ppos(f.file);
if (fd_file(f)) {
loff_t pos, *ppos = file_ppos(fd_file(f));
if (ppos) {
pos = *ppos;
ppos = &pos;
}
ret = vfs_readv(f.file, vec, vlen, ppos, flags);
ret = vfs_readv(fd_file(f), vec, vlen, ppos, flags);
if (ret >= 0 && ppos)
f.file->f_pos = pos;
fd_file(f)->f_pos = pos;
fdput_pos(f);
}
@ -1102,15 +1102,15 @@ static ssize_t do_writev(unsigned long fd, const struct iovec __user *vec,
struct fd f = fdget_pos(fd);
ssize_t ret = -EBADF;
if (f.file) {
loff_t pos, *ppos = file_ppos(f.file);
if (fd_file(f)) {
loff_t pos, *ppos = file_ppos(fd_file(f));
if (ppos) {
pos = *ppos;
ppos = &pos;
}
ret = vfs_writev(f.file, vec, vlen, ppos, flags);
ret = vfs_writev(fd_file(f), vec, vlen, ppos, flags);
if (ret >= 0 && ppos)
f.file->f_pos = pos;
fd_file(f)->f_pos = pos;
fdput_pos(f);
}
@ -1136,10 +1136,10 @@ static ssize_t do_preadv(unsigned long fd, const struct iovec __user *vec,
return -EINVAL;
f = fdget(fd);
if (f.file) {
if (fd_file(f)) {
ret = -ESPIPE;
if (f.file->f_mode & FMODE_PREAD)
ret = vfs_readv(f.file, vec, vlen, &pos, flags);
if (fd_file(f)->f_mode & FMODE_PREAD)
ret = vfs_readv(fd_file(f), vec, vlen, &pos, flags);
fdput(f);
}
@ -1159,10 +1159,10 @@ static ssize_t do_pwritev(unsigned long fd, const struct iovec __user *vec,
return -EINVAL;
f = fdget(fd);
if (f.file) {
if (fd_file(f)) {
ret = -ESPIPE;
if (f.file->f_mode & FMODE_PWRITE)
ret = vfs_writev(f.file, vec, vlen, &pos, flags);
if (fd_file(f)->f_mode & FMODE_PWRITE)
ret = vfs_writev(fd_file(f), vec, vlen, &pos, flags);
fdput(f);
}
@ -1328,19 +1328,19 @@ static ssize_t do_sendfile(int out_fd, int in_fd, loff_t *ppos,
*/
retval = -EBADF;
in = fdget(in_fd);
if (!in.file)
if (!fd_file(in))
goto out;
if (!(in.file->f_mode & FMODE_READ))
if (!(fd_file(in)->f_mode & FMODE_READ))
goto fput_in;
retval = -ESPIPE;
if (!ppos) {
pos = in.file->f_pos;
pos = fd_file(in)->f_pos;
} else {
pos = *ppos;
if (!(in.file->f_mode & FMODE_PREAD))
if (!(fd_file(in)->f_mode & FMODE_PREAD))
goto fput_in;
}
retval = rw_verify_area(READ, in.file, &pos, count);
retval = rw_verify_area(READ, fd_file(in), &pos, count);
if (retval < 0)
goto fput_in;
if (count > MAX_RW_COUNT)
@ -1351,13 +1351,13 @@ static ssize_t do_sendfile(int out_fd, int in_fd, loff_t *ppos,
*/
retval = -EBADF;
out = fdget(out_fd);
if (!out.file)
if (!fd_file(out))
goto fput_in;
if (!(out.file->f_mode & FMODE_WRITE))
if (!(fd_file(out)->f_mode & FMODE_WRITE))
goto fput_out;
in_inode = file_inode(in.file);
out_inode = file_inode(out.file);
out_pos = out.file->f_pos;
in_inode = file_inode(fd_file(in));
out_inode = file_inode(fd_file(out));
out_pos = fd_file(out)->f_pos;
if (!max)
max = min(in_inode->i_sb->s_maxbytes, out_inode->i_sb->s_maxbytes);
@ -1377,33 +1377,33 @@ static ssize_t do_sendfile(int out_fd, int in_fd, loff_t *ppos,
* and the application is arguably buggy if it doesn't expect
* EAGAIN on a non-blocking file descriptor.
*/
if (in.file->f_flags & O_NONBLOCK)
if (fd_file(in)->f_flags & O_NONBLOCK)
fl = SPLICE_F_NONBLOCK;
#endif
opipe = get_pipe_info(out.file, true);
opipe = get_pipe_info(fd_file(out), true);
if (!opipe) {
retval = rw_verify_area(WRITE, out.file, &out_pos, count);
retval = rw_verify_area(WRITE, fd_file(out), &out_pos, count);
if (retval < 0)
goto fput_out;
retval = do_splice_direct(in.file, &pos, out.file, &out_pos,
retval = do_splice_direct(fd_file(in), &pos, fd_file(out), &out_pos,
count, fl);
} else {
if (out.file->f_flags & O_NONBLOCK)
if (fd_file(out)->f_flags & O_NONBLOCK)
fl |= SPLICE_F_NONBLOCK;
retval = splice_file_to_pipe(in.file, opipe, &pos, count, fl);
retval = splice_file_to_pipe(fd_file(in), opipe, &pos, count, fl);
}
if (retval > 0) {
add_rchar(current, retval);
add_wchar(current, retval);
fsnotify_access(in.file);
fsnotify_modify(out.file);
out.file->f_pos = out_pos;
fsnotify_access(fd_file(in));
fsnotify_modify(fd_file(out));
fd_file(out)->f_pos = out_pos;
if (ppos)
*ppos = pos;
else
in.file->f_pos = pos;
fd_file(in)->f_pos = pos;
}
inc_syscr(current);
@ -1676,11 +1676,11 @@ SYSCALL_DEFINE6(copy_file_range, int, fd_in, loff_t __user *, off_in,
ssize_t ret = -EBADF;
f_in = fdget(fd_in);
if (!f_in.file)
if (!fd_file(f_in))
goto out2;
f_out = fdget(fd_out);
if (!f_out.file)
if (!fd_file(f_out))
goto out1;
ret = -EFAULT;
@ -1688,21 +1688,21 @@ SYSCALL_DEFINE6(copy_file_range, int, fd_in, loff_t __user *, off_in,
if (copy_from_user(&pos_in, off_in, sizeof(loff_t)))
goto out;
} else {
pos_in = f_in.file->f_pos;
pos_in = fd_file(f_in)->f_pos;
}
if (off_out) {
if (copy_from_user(&pos_out, off_out, sizeof(loff_t)))
goto out;
} else {
pos_out = f_out.file->f_pos;
pos_out = fd_file(f_out)->f_pos;
}
ret = -EINVAL;
if (flags != 0)
goto out;
ret = vfs_copy_file_range(f_in.file, pos_in, f_out.file, pos_out, len,
ret = vfs_copy_file_range(fd_file(f_in), pos_in, fd_file(f_out), pos_out, len,
flags);
if (ret > 0) {
pos_in += ret;
@ -1712,14 +1712,14 @@ SYSCALL_DEFINE6(copy_file_range, int, fd_in, loff_t __user *, off_in,
if (copy_to_user(off_in, &pos_in, sizeof(loff_t)))
ret = -EFAULT;
} else {
f_in.file->f_pos = pos_in;
fd_file(f_in)->f_pos = pos_in;
}
if (off_out) {
if (copy_to_user(off_out, &pos_out, sizeof(loff_t)))
ret = -EFAULT;
} else {
f_out.file->f_pos = pos_out;
fd_file(f_out)->f_pos = pos_out;
}
}

20
fs/readdir.c
View File

@ -225,10 +225,10 @@ SYSCALL_DEFINE3(old_readdir, unsigned int, fd,
.dirent = dirent
};
if (!f.file)
if (!fd_file(f))
return -EBADF;
error = iterate_dir(f.file, &buf.ctx);
error = iterate_dir(fd_file(f), &buf.ctx);
if (buf.result)
error = buf.result;
@ -318,10 +318,10 @@ SYSCALL_DEFINE3(getdents, unsigned int, fd,
int error;
f = fdget_pos(fd);
if (!f.file)
if (!fd_file(f))
return -EBADF;
error = iterate_dir(f.file, &buf.ctx);
error = iterate_dir(fd_file(f), &buf.ctx);
if (error >= 0)
error = buf.error;
if (buf.prev_reclen) {
@ -401,10 +401,10 @@ SYSCALL_DEFINE3(getdents64, unsigned int, fd,
int error;
f = fdget_pos(fd);
if (!f.file)
if (!fd_file(f))
return -EBADF;
error = iterate_dir(f.file, &buf.ctx);
error = iterate_dir(fd_file(f), &buf.ctx);
if (error >= 0)
error = buf.error;
if (buf.prev_reclen) {
@ -483,10 +483,10 @@ COMPAT_SYSCALL_DEFINE3(old_readdir, unsigned int, fd,
.dirent = dirent
};
if (!f.file)
if (!fd_file(f))
return -EBADF;
error = iterate_dir(f.file, &buf.ctx);
error = iterate_dir(fd_file(f), &buf.ctx);
if (buf.result)
error = buf.result;
@ -569,10 +569,10 @@ COMPAT_SYSCALL_DEFINE3(getdents, unsigned int, fd,
int error;
f = fdget_pos(fd);
if (!f.file)
if (!fd_file(f))
return -EBADF;
error = iterate_dir(f.file, &buf.ctx);
error = iterate_dir(fd_file(f), &buf.ctx);
if (error >= 0)
error = buf.error;
if (buf.prev_reclen) {

2
fs/remap_range.c
View File

@ -537,7 +537,7 @@ int vfs_dedupe_file_range(struct file *file, struct file_dedupe_range *same)
for (i = 0, info = same->info; i < count; i++, info++) {
struct fd dst_fd = fdget(info->dest_fd);
struct file *dst_file = dst_fd.file;
struct file *dst_file = fd_file(dst_fd);
if (!dst_file) {
info->status = -EBADF;

8
fs/select.c
View File

@ -529,10 +529,10 @@ static noinline_for_stack int do_select(int n, fd_set_bits *fds, struct timespec
continue;
mask = EPOLLNVAL;
f = fdget(i);
if (f.file) {
if (fd_file(f)) {
wait_key_set(wait, in, out, bit,
busy_flag);
mask = vfs_poll(f.file, wait);
mask = vfs_poll(fd_file(f), wait);
fdput(f);
}
@ -863,13 +863,13 @@ static inline __poll_t do_pollfd(struct pollfd *pollfd, poll_table *pwait,
goto out;
mask = EPOLLNVAL;
f = fdget(fd);
if (!f.file)
if (!fd_file(f))
goto out;
/* userland u16 ->events contains POLL... bitmap */
filter = demangle_poll(pollfd->events) | EPOLLERR | EPOLLHUP;
pwait->_key = filter | busy_flag;
mask = vfs_poll(f.file, pwait);
mask = vfs_poll(fd_file(f), pwait);
if (mask & busy_flag)
*can_busy_poll = true;
mask &= filter; /* Mask out unneeded events. */

6
fs/signalfd.c
View File

@ -289,10 +289,10 @@ static int do_signalfd4(int ufd, sigset_t *mask, int flags)
fd_install(ufd, file);
} else {
struct fd f = fdget(ufd);
if (!f.file)
if (!fd_file(f))
return -EBADF;
ctx = f.file->private_data;
if (f.file->f_op != &signalfd_fops) {
ctx = fd_file(f)->private_data;
if (fd_file(f)->f_op != &signalfd_fops) {
fdput(f);
return -EINVAL;
}

8
fs/smb/client/ioctl.c
View File

@ -90,23 +90,23 @@ static long cifs_ioctl_copychunk(unsigned int xid, struct file *dst_file,
}
src_file = fdget(srcfd);
if (!src_file.file) {
if (!fd_file(src_file)) {
rc = -EBADF;
goto out_drop_write;
}
if (src_file.file->f_op->unlocked_ioctl != cifs_ioctl) {
if (fd_file(src_file)->f_op->unlocked_ioctl != cifs_ioctl) {
rc = -EBADF;
cifs_dbg(VFS, "src file seems to be from a different filesystem type\n");
goto out_fput;
}
src_inode = file_inode(src_file.file);
src_inode = file_inode(fd_file(src_file));
rc = -EINVAL;
if (S_ISDIR(src_inode->i_mode))
goto out_fput;
rc = cifs_file_copychunk_range(xid, src_file.file, 0, dst_file, 0,
rc = cifs_file_copychunk_range(xid, fd_file(src_file), 0, dst_file, 0,
src_inode->i_size, 0);
if (rc > 0)
rc = 0;

22
fs/splice.c
View File

@ -1566,11 +1566,11 @@ static ssize_t vmsplice_to_pipe(struct file *file, struct iov_iter *iter,
static int vmsplice_type(struct fd f, int *type)
{
if (!f.file)
if (!fd_file(f))
return -EBADF;
if (f.file->f_mode & FMODE_WRITE) {
if (fd_file(f)->f_mode & FMODE_WRITE) {
*type = ITER_SOURCE;
} else if (f.file->f_mode & FMODE_READ) {
} else if (fd_file(f)->f_mode & FMODE_READ) {
*type = ITER_DEST;
} else {
fdput(f);
@ -1621,9 +1621,9 @@ SYSCALL_DEFINE4(vmsplice, int, fd, const struct iovec __user *, uiov,
if (!iov_iter_count(&iter))
error = 0;
else if (type == ITER_SOURCE)
error = vmsplice_to_pipe(f.file, &iter, flags);
error = vmsplice_to_pipe(fd_file(f), &iter, flags);
else
error = vmsplice_to_user(f.file, &iter, flags);
error = vmsplice_to_user(fd_file(f), &iter, flags);
kfree(iov);
out_fdput:
@ -1646,10 +1646,10 @@ SYSCALL_DEFINE6(splice, int, fd_in, loff_t __user *, off_in,
error = -EBADF;
in = fdget(fd_in);
if (in.file) {
if (fd_file(in)) {
out = fdget(fd_out);
if (out.file) {
error = __do_splice(in.file, off_in, out.file, off_out,
if (fd_file(out)) {
error = __do_splice(fd_file(in), off_in, fd_file(out), off_out,
len, flags);
fdput(out);
}
@ -2016,10 +2016,10 @@ SYSCALL_DEFINE4(tee, int, fdin, int, fdout, size_t, len, unsigned int, flags)
error = -EBADF;
in = fdget(fdin);
if (in.file) {
if (fd_file(in)) {
out = fdget(fdout);
if (out.file) {
error = do_tee(in.file, out.file, len, flags);
if (fd_file(out)) {
error = do_tee(fd_file(in), fd_file(out), len, flags);
fdput(out);
}
fdput(in);

8
fs/stat.c
View File

@ -224,9 +224,9 @@ int vfs_fstat(int fd, struct kstat *stat)
int error;
f = fdget_raw(fd);
if (!f.file)
if (!fd_file(f))
return -EBADF;
error = vfs_getattr(&f.file->f_path, stat, STATX_BASIC_STATS, 0);
error = vfs_getattr(&fd_file(f)->f_path, stat, STATX_BASIC_STATS, 0);
fdput(f);
return error;
}
@ -277,9 +277,9 @@ static int vfs_statx_fd(int fd, int flags, struct kstat *stat,
u32 request_mask)
{
CLASS(fd_raw, f)(fd);
if (!f.file)
if (!fd_file(f))
return -EBADF;
return vfs_statx_path(&f.file->f_path, flags, stat, request_mask);
return vfs_statx_path(&fd_file(f)->f_path, flags, stat, request_mask);
}
/**

4
fs/statfs.c
View File

@ -116,8 +116,8 @@ int fd_statfs(int fd, struct kstatfs *st)
{
struct fd f = fdget_raw(fd);
int error = -EBADF;
if (f.file) {
error = vfs_statfs(&f.file->f_path, st);
if (fd_file(f)) {
error = vfs_statfs(&fd_file(f)->f_path, st);
fdput(f);
}
return error;

14
fs/sync.c
View File

@ -152,15 +152,15 @@ SYSCALL_DEFINE1(syncfs, int, fd)
struct super_block *sb;
int ret, ret2;
if (!f.file)
if (!fd_file(f))
return -EBADF;
sb = f.file->f_path.dentry->d_sb;
sb = fd_file(f)->f_path.dentry->d_sb;
down_read(&sb->s_umount);
ret = sync_filesystem(sb);
up_read(&sb->s_umount);
ret2 = errseq_check_and_advance(&sb->s_wb_err, &f.file->f_sb_err);
ret2 = errseq_check_and_advance(&sb->s_wb_err, &fd_file(f)->f_sb_err);
fdput(f);
return ret ? ret : ret2;
@ -208,8 +208,8 @@ static int do_fsync(unsigned int fd, int datasync)
struct fd f = fdget(fd);
int ret = -EBADF;
if (f.file) {
ret = vfs_fsync(f.file, datasync);
if (fd_file(f)) {
ret = vfs_fsync(fd_file(f), datasync);
fdput(f);
}
return ret;
@ -360,8 +360,8 @@ int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
ret = -EBADF;
f = fdget(fd);
if (f.file)
ret = sync_file_range(f.file, offset, nbytes, flags);
if (fd_file(f))
ret = sync_file_range(fd_file(f), offset, nbytes, flags);
fdput(f);
return ret;

8
fs/timerfd.c
View File

@ -397,9 +397,9 @@ static const struct file_operations timerfd_fops = {
static int timerfd_fget(int fd, struct fd *p)
{
struct fd f = fdget(fd);
if (!f.file)
if (!fd_file(f))
return -EBADF;
if (f.file->f_op != &timerfd_fops) {
if (fd_file(f)->f_op != &timerfd_fops) {
fdput(f);
return -EINVAL;
}
@ -482,7 +482,7 @@ static int do_timerfd_settime(int ufd, int flags,
ret = timerfd_fget(ufd, &f);
if (ret)
return ret;
ctx = f.file->private_data;
ctx = fd_file(f)->private_data;
if (isalarm(ctx) && !capable(CAP_WAKE_ALARM)) {
fdput(f);
@ -546,7 +546,7 @@ static int do_timerfd_gettime(int ufd, struct itimerspec64 *t)
int ret = timerfd_fget(ufd, &f);
if (ret)
return ret;
ctx = f.file->private_data;
ctx = fd_file(f)->private_data;
spin_lock_irq(&ctx->wqh.lock);
if (ctx->expired && ctx->tintv) {

4
fs/utimes.c
View File

@ -115,9 +115,9 @@ static int do_utimes_fd(int fd, struct timespec64 *times, int flags)
return -EINVAL;
f = fdget(fd);
if (!f.file)
if (!fd_file(f))
return -EBADF;
error = vfs_utimes(&f.file->f_path, times);
error = vfs_utimes(&fd_file(f)->f_path, times);
fdput(f);
return error;
}

36
fs/xattr.c
View File

@ -697,19 +697,19 @@ SYSCALL_DEFINE5(fsetxattr, int, fd, const char __user *, name,
int error;
CLASS(fd, f)(fd);
if (!f.file)
if (!fd_file(f))
return -EBADF;
audit_file(f.file);
audit_file(fd_file(f));
error = setxattr_copy(name, &ctx);
if (error)
return error;
error = mnt_want_write_file(f.file);
error = mnt_want_write_file(fd_file(f));
if (!error) {
error = do_setxattr(file_mnt_idmap(f.file),
f.file->f_path.dentry, &ctx);
mnt_drop_write_file(f.file);
error = do_setxattr(file_mnt_idmap(fd_file(f)),
fd_file(f)->f_path.dentry, &ctx);
mnt_drop_write_file(fd_file(f));
}
kvfree(ctx.kvalue);
return error;
@ -812,10 +812,10 @@ SYSCALL_DEFINE4(fgetxattr, int, fd, const char __user *, name,
struct fd f = fdget(fd);
ssize_t error = -EBADF;
if (!f.file)
if (!fd_file(f))
return error;
audit_file(f.file);
error = getxattr(file_mnt_idmap(f.file), f.file->f_path.dentry,
audit_file(fd_file(f));
error = getxattr(file_mnt_idmap(fd_file(f)), fd_file(f)->f_path.dentry,
name, value, size);
fdput(f);
return error;
@ -888,10 +888,10 @@ SYSCALL_DEFINE3(flistxattr, int, fd, char __user *, list, size_t, size)
struct fd f = fdget(fd);
ssize_t error = -EBADF;
if (!f.file)
if (!fd_file(f))
return error;
audit_file(f.file);
error = listxattr(f.file->f_path.dentry, list, size);
audit_file(fd_file(f));
error = listxattr(fd_file(f)->f_path.dentry, list, size);
fdput(f);
return error;
}
@ -954,9 +954,9 @@ SYSCALL_DEFINE2(fremovexattr, int, fd, const char __user *, name)
char kname[XATTR_NAME_MAX + 1];
int error = -EBADF;
if (!f.file)
if (!fd_file(f))
return error;
audit_file(f.file);
audit_file(fd_file(f));
error = strncpy_from_user(kname, name, sizeof(kname));
if (error == 0 || error == sizeof(kname))
@ -964,11 +964,11 @@ SYSCALL_DEFINE2(fremovexattr, int, fd, const char __user *, name)
if (error < 0)
return error;
error = mnt_want_write_file(f.file);
error = mnt_want_write_file(fd_file(f));
if (!error) {
error = removexattr(file_mnt_idmap(f.file),
f.file->f_path.dentry, kname);
mnt_drop_write_file(f.file);
error = removexattr(file_mnt_idmap(fd_file(f)),
fd_file(f)->f_path.dentry, kname);
mnt_drop_write_file(fd_file(f));
}
fdput(f);
return error;

8
fs/xfs/xfs_exchrange.c
View File

@ -829,9 +829,9 @@ xfs_ioc_exchange_range(
fxr.flags = args.flags;
file1 = fdget(args.file1_fd);
if (!file1.file)
if (!fd_file(file1))
return -EBADF;
fxr.file1 = file1.file;
fxr.file1 = fd_file(file1);
error = xfs_exchange_range(&fxr);
fdput(file1);
@ -935,9 +935,9 @@ xfs_ioc_commit_range(
fxr.file2_ctime.tv_nsec = kern_f->file2_ctime_nsec;
file1 = fdget(args.file1_fd);
if (!file1.file)
if (fd_empty(file1))
return -EBADF;
fxr.file1 = file1.file;
fxr.file1 = fd_file(file1);
error = xfs_exchange_range(&fxr);
fdput(file1);

6
fs/xfs/xfs_handle.c
View File

@ -85,16 +85,16 @@ xfs_find_handle(
int hsize;
xfs_handle_t handle;
struct inode *inode;
struct fd f = {NULL};
struct fd f = EMPTY_FD;
struct path path;
int error;
struct xfs_inode *ip;
if (cmd == XFS_IOC_FD_TO_HANDLE) {
f = fdget(hreq->fd);
if (!f.file)
if (!fd_file(f))
return -EBADF;
inode = file_inode(f.file);
inode = file_inode(fd_file(f));
} else {
error = user_path_at(AT_FDCWD, hreq->path, 0, &path);
if (error)

28
fs/xfs/xfs_ioctl.c
View File

@ -886,33 +886,33 @@ xfs_ioc_swapext(
/* Pull information for the target fd */
f = fdget((int)sxp->sx_fdtarget);
if (!f.file) {
if (!fd_file(f)) {
error = -EINVAL;
goto out;
}
if (!(f.file->f_mode & FMODE_WRITE) ||
!(f.file->f_mode & FMODE_READ) ||
(f.file->f_flags & O_APPEND)) {
if (!(fd_file(f)->f_mode & FMODE_WRITE) ||
!(fd_file(f)->f_mode & FMODE_READ) ||
(fd_file(f)->f_flags & O_APPEND)) {
error = -EBADF;
goto out_put_file;
}
tmp = fdget((int)sxp->sx_fdtmp);
if (!tmp.file) {
if (!fd_file(tmp)) {
error = -EINVAL;
goto out_put_file;
}
if (!(tmp.file->f_mode & FMODE_WRITE) ||
!(tmp.file->f_mode & FMODE_READ) ||
(tmp.file->f_flags & O_APPEND)) {
if (!(fd_file(tmp)->f_mode & FMODE_WRITE) ||
!(fd_file(tmp)->f_mode & FMODE_READ) ||
(fd_file(tmp)->f_flags & O_APPEND)) {
error = -EBADF;
goto out_put_tmp_file;
}
if (IS_SWAPFILE(file_inode(f.file)) ||
IS_SWAPFILE(file_inode(tmp.file))) {
if (IS_SWAPFILE(file_inode(fd_file(f))) ||
IS_SWAPFILE(file_inode(fd_file(tmp)))) {
error = -EINVAL;
goto out_put_tmp_file;
}
@ -922,14 +922,14 @@ xfs_ioc_swapext(
* before we cast and access them as XFS structures as we have no
* control over what the user passes us here.
*/
if (f.file->f_op != &xfs_file_operations ||
tmp.file->f_op != &xfs_file_operations) {
if (fd_file(f)->f_op != &xfs_file_operations ||
fd_file(tmp)->f_op != &xfs_file_operations) {
error = -EINVAL;
goto out_put_tmp_file;
}
ip = XFS_I(file_inode(f.file));
tip = XFS_I(file_inode(tmp.file));
ip = XFS_I(file_inode(fd_file(f)));
tip = XFS_I(file_inode(fd_file(tmp)));
if (ip->i_mount != tip->i_mount) {
error = -EINVAL;

2
include/linux/cleanup.h
View File

@ -98,7 +98,7 @@ const volatile void * __must_check_fn(const volatile void *val)
* DEFINE_CLASS(fdget, struct fd, fdput(_T), fdget(fd), int fd)
*
* CLASS(fdget, f)(fd);
* if (!f.file)
* if (!fd_file(f))
* return -EBADF;
*
* // use 'f' without concern

57
include/linux/file.h
View File

@ -36,51 +36,52 @@ static inline void fput_light(struct file *file, int fput_needed)
fput(file);
}
/* either a reference to struct file + flags
* (cloned vs. borrowed, pos locked), with
* flags stored in lower bits of value,
* or empty (represented by 0).
*/
struct fd {
struct file *file;
unsigned int flags;
unsigned long word;
};
#define FDPUT_FPUT 1
#define FDPUT_POS_UNLOCK 2
#define fd_file(f) ((struct file *)((f).word & ~(FDPUT_FPUT|FDPUT_POS_UNLOCK)))
static inline bool fd_empty(struct fd f)
{
return unlikely(!f.word);
}
#define EMPTY_FD (struct fd){0}
static inline struct fd BORROWED_FD(struct file *f)
{
return (struct fd){(unsigned long)f};
}
static inline struct fd CLONED_FD(struct file *f)
{
return (struct fd){(unsigned long)f | FDPUT_FPUT};
}
static inline void fdput(struct fd fd)
{
if (fd.flags & FDPUT_FPUT)
fput(fd.file);
if (fd.word & FDPUT_FPUT)
fput(fd_file(fd));
}
extern struct file *fget(unsigned int fd);
extern struct file *fget_raw(unsigned int fd);
extern struct file *fget_task(struct task_struct *task, unsigned int fd);
extern unsigned long __fdget(unsigned int fd);
extern unsigned long __fdget_raw(unsigned int fd);
extern unsigned long __fdget_pos(unsigned int fd);
extern void __f_unlock_pos(struct file *);
static inline struct fd __to_fd(unsigned long v)
{
return (struct fd){(struct file *)(v & ~3),v & 3};
}
static inline struct fd fdget(unsigned int fd)
{
return __to_fd(__fdget(fd));
}
static inline struct fd fdget_raw(unsigned int fd)
{
return __to_fd(__fdget_raw(fd));
}
static inline struct fd fdget_pos(int fd)
{
return __to_fd(__fdget_pos(fd));
}
struct fd fdget(unsigned int fd);
struct fd fdget_raw(unsigned int fd);
struct fd fdget_pos(unsigned int fd);
static inline void fdput_pos(struct fd f)
{
if (f.flags & FDPUT_POS_UNLOCK)
__f_unlock_pos(f.file);
if (f.word & FDPUT_POS_UNLOCK)
__f_unlock_pos(fd_file(f));
fdput(f);
}

10
io_uring/sqpoll.c
View File

@ -109,14 +109,14 @@ static struct io_sq_data *io_attach_sq_data(struct io_uring_params *p)
struct fd f;
f = fdget(p->wq_fd);
if (!f.file)
if (!fd_file(f))
return ERR_PTR(-ENXIO);
if (!io_is_uring_fops(f.file)) {
if (!io_is_uring_fops(fd_file(f))) {
fdput(f);
return ERR_PTR(-EINVAL);
}
ctx_attach = f.file->private_data;
ctx_attach = fd_file(f)->private_data;
sqd = ctx_attach->sq_data;
if (!sqd) {
fdput(f);
@ -419,9 +419,9 @@ __cold int io_sq_offload_create(struct io_ring_ctx *ctx,
struct fd f;
f = fdget(p->wq_fd);
if (!f.file)
if (!fd_file(f))
return -ENXIO;
if (!io_is_uring_fops(f.file)) {
if (!io_is_uring_fops(fd_file(f))) {
fdput(f);
return -EINVAL;
}

50
ipc/mqueue.c
View File

@ -1085,20 +1085,20 @@ static int do_mq_timedsend(mqd_t mqdes, const char __user *u_msg_ptr,
audit_mq_sendrecv(mqdes, msg_len, msg_prio, ts);
f = fdget(mqdes);
if (unlikely(!f.file)) {
if (unlikely(!fd_file(f))) {
ret = -EBADF;
goto out;
}
inode = file_inode(f.file);
if (unlikely(f.file->f_op != &mqueue_file_operations)) {
inode = file_inode(fd_file(f));
if (unlikely(fd_file(f)->f_op != &mqueue_file_operations)) {
ret = -EBADF;
goto out_fput;
}
info = MQUEUE_I(inode);
audit_file(f.file);
audit_file(fd_file(f));
if (unlikely(!(f.file->f_mode & FMODE_WRITE))) {
if (unlikely(!(fd_file(f)->f_mode & FMODE_WRITE))) {
ret = -EBADF;
goto out_fput;
}
@ -1138,7 +1138,7 @@ static int do_mq_timedsend(mqd_t mqdes, const char __user *u_msg_ptr,
}
if (info->attr.mq_curmsgs == info->attr.mq_maxmsg) {
if (f.file->f_flags & O_NONBLOCK) {
if (fd_file(f)->f_flags & O_NONBLOCK) {
ret = -EAGAIN;
} else {
wait.task = current;
@ -1199,20 +1199,20 @@ static int do_mq_timedreceive(mqd_t mqdes, char __user *u_msg_ptr,
audit_mq_sendrecv(mqdes, msg_len, 0, ts);
f = fdget(mqdes);
if (unlikely(!f.file)) {
if (unlikely(!fd_file(f))) {
ret = -EBADF;
goto out;
}
inode = file_inode(f.file);
if (unlikely(f.file->f_op != &mqueue_file_operations)) {
inode = file_inode(fd_file(f));
if (unlikely(fd_file(f)->f_op != &mqueue_file_operations)) {
ret = -EBADF;
goto out_fput;
}
info = MQUEUE_I(inode);
audit_file(f.file);
audit_file(fd_file(f));
if (unlikely(!(f.file->f_mode & FMODE_READ))) {
if (unlikely(!(fd_file(f)->f_mode & FMODE_READ))) {
ret = -EBADF;
goto out_fput;
}
@ -1242,7 +1242,7 @@ static int do_mq_timedreceive(mqd_t mqdes, char __user *u_msg_ptr,
}
if (info->attr.mq_curmsgs == 0) {
if (f.file->f_flags & O_NONBLOCK) {
if (fd_file(f)->f_flags & O_NONBLOCK) {
spin_unlock(&info->lock);
ret = -EAGAIN;
} else {
@ -1356,11 +1356,11 @@ static int do_mq_notify(mqd_t mqdes, const struct sigevent *notification)
/* and attach it to the socket */
retry:
f = fdget(notification->sigev_signo);
if (!f.file) {
if (!fd_file(f)) {
ret = -EBADF;
goto out;
}
sock = netlink_getsockbyfilp(f.file);
sock = netlink_getsockbyfilp(fd_file(f));
fdput(f);
if (IS_ERR(sock)) {
ret = PTR_ERR(sock);
@ -1379,13 +1379,13 @@ retry:
}
f = fdget(mqdes);
if (!f.file) {
if (!fd_file(f)) {
ret = -EBADF;
goto out;
}
inode = file_inode(f.file);
if (unlikely(f.file->f_op != &mqueue_file_operations)) {
inode = file_inode(fd_file(f));
if (unlikely(fd_file(f)->f_op != &mqueue_file_operations)) {
ret = -EBADF;
goto out_fput;
}
@ -1460,31 +1460,31 @@ static int do_mq_getsetattr(int mqdes, struct mq_attr *new, struct mq_attr *old)
return -EINVAL;
f = fdget(mqdes);
if (!f.file)
if (!fd_file(f))
return -EBADF;
if (unlikely(f.file->f_op != &mqueue_file_operations)) {
if (unlikely(fd_file(f)->f_op != &mqueue_file_operations)) {
fdput(f);
return -EBADF;
}
inode = file_inode(f.file);
inode = file_inode(fd_file(f));
info = MQUEUE_I(inode);
spin_lock(&info->lock);
if (old) {
*old = info->attr;
old->mq_flags = f.file->f_flags & O_NONBLOCK;
old->mq_flags = fd_file(f)->f_flags & O_NONBLOCK;
}
if (new) {
audit_mq_getsetattr(mqdes, new);
spin_lock(&f.file->f_lock);
spin_lock(&fd_file(f)->f_lock);
if (new->mq_flags & O_NONBLOCK)
f.file->f_flags |= O_NONBLOCK;
fd_file(f)->f_flags |= O_NONBLOCK;
else
f.file->f_flags &= ~O_NONBLOCK;
spin_unlock(&f.file->f_lock);
fd_file(f)->f_flags &= ~O_NONBLOCK;
spin_unlock(&fd_file(f)->f_lock);
inode_set_atime_to_ts(inode, inode_set_ctime_current(inode));
}

14
kernel/bpf/bpf_inode_storage.c
View File

@ -80,10 +80,10 @@ static void *bpf_fd_inode_storage_lookup_elem(struct bpf_map *map, void *key)
struct bpf_local_storage_data *sdata;
struct fd f = fdget_raw(*(int *)key);
if (!f.file)
if (!fd_file(f))
return ERR_PTR(-EBADF);
sdata = inode_storage_lookup(file_inode(f.file), map, true);
sdata = inode_storage_lookup(file_inode(fd_file(f)), map, true);
fdput(f);
return sdata ? sdata->data : NULL;
}
@ -94,14 +94,14 @@ static long bpf_fd_inode_storage_update_elem(struct bpf_map *map, void *key,
struct bpf_local_storage_data *sdata;
struct fd f = fdget_raw(*(int *)key);
if (!f.file)
if (!fd_file(f))
return -EBADF;
if (!inode_storage_ptr(file_inode(f.file))) {
if (!inode_storage_ptr(file_inode(fd_file(f)))) {
fdput(f);
return -EBADF;
}
sdata = bpf_local_storage_update(file_inode(f.file),
sdata = bpf_local_storage_update(file_inode(fd_file(f)),
(struct bpf_local_storage_map *)map,
value, map_flags, GFP_ATOMIC);
fdput(f);
@ -126,10 +126,10 @@ static long bpf_fd_inode_storage_delete_elem(struct bpf_map *map, void *key)
struct fd f = fdget_raw(*(int *)key);
int err;
if (!f.file)
if (!fd_file(f))
return -EBADF;
err = inode_storage_delete(file_inode(f.file), map);
err = inode_storage_delete(file_inode(fd_file(f)), map);
fdput(f);
return err;
}

6
kernel/bpf/btf.c
View File

@ -7715,15 +7715,15 @@ struct btf *btf_get_by_fd(int fd)
f = fdget(fd);
if (!f.file)
if (!fd_file(f))
return ERR_PTR(-EBADF);
if (f.file->f_op != &btf_fops) {
if (fd_file(f)->f_op != &btf_fops) {
fdput(f);
return ERR_PTR(-EINVAL);
}
btf = f.file->private_data;
btf = fd_file(f)->private_data;
refcount_inc(&btf->refcnt);
fdput(f);

42
kernel/bpf/syscall.c
View File

@ -837,7 +837,7 @@ static int bpf_map_release(struct inode *inode, struct file *filp)
static fmode_t map_get_sys_perms(struct bpf_map *map, struct fd f)
{
fmode_t mode = f.file->f_mode;
fmode_t mode = fd_file(f)->f_mode;
/* Our file permissions may have been overridden by global
* map permissions facing syscall side.
@ -1430,14 +1430,14 @@ put_token:
*/
struct bpf_map *__bpf_map_get(struct fd f)
{
if (!f.file)
if (!fd_file(f))
return ERR_PTR(-EBADF);
if (f.file->f_op != &bpf_map_fops) {
if (fd_file(f)->f_op != &bpf_map_fops) {
fdput(f);
return ERR_PTR(-EINVAL);
}
return f.file->private_data;
return fd_file(f)->private_data;
}
void bpf_map_inc(struct bpf_map *map)
@ -1658,7 +1658,7 @@ static int map_update_elem(union bpf_attr *attr, bpfptr_t uattr)
goto free_key;
}
err = bpf_map_update_value(map, f.file, key, value, attr->flags);
err = bpf_map_update_value(map, fd_file(f), key, value, attr->flags);
if (!err)
maybe_wait_bpf_programs(map);
@ -2416,14 +2416,14 @@ int bpf_prog_new_fd(struct bpf_prog *prog)
static struct bpf_prog *____bpf_prog_get(struct fd f)
{
if (!f.file)
if (!fd_file(f))
return ERR_PTR(-EBADF);
if (f.file->f_op != &bpf_prog_fops) {
if (fd_file(f)->f_op != &bpf_prog_fops) {
fdput(f);
return ERR_PTR(-EINVAL);
}
return f.file->private_data;
return fd_file(f)->private_data;
}
void bpf_prog_add(struct bpf_prog *prog, int i)
@ -3266,14 +3266,14 @@ struct bpf_link *bpf_link_get_from_fd(u32 ufd)
struct fd f = fdget(ufd);
struct bpf_link *link;
if (!f.file)
if (!fd_file(f))
return ERR_PTR(-EBADF);
if (f.file->f_op != &bpf_link_fops && f.file->f_op != &bpf_link_fops_poll) {
if (fd_file(f)->f_op != &bpf_link_fops && fd_file(f)->f_op != &bpf_link_fops_poll) {
fdput(f);
return ERR_PTR(-EINVAL);
}
link = f.file->private_data;
link = fd_file(f)->private_data;
bpf_link_inc(link);
fdput(f);
@ -4989,19 +4989,19 @@ static int bpf_obj_get_info_by_fd(const union bpf_attr *attr,
return -EINVAL;
f = fdget(ufd);
if (!f.file)
if (!fd_file(f))
return -EBADFD;
if (f.file->f_op == &bpf_prog_fops)
err = bpf_prog_get_info_by_fd(f.file, f.file->private_data, attr,
if (fd_file(f)->f_op == &bpf_prog_fops)
err = bpf_prog_get_info_by_fd(fd_file(f), fd_file(f)->private_data, attr,
uattr);
else if (f.file->f_op == &bpf_map_fops)
err = bpf_map_get_info_by_fd(f.file, f.file->private_data, attr,
else if (fd_file(f)->f_op == &bpf_map_fops)
err = bpf_map_get_info_by_fd(fd_file(f), fd_file(f)->private_data, attr,
uattr);
else if (f.file->f_op == &btf_fops)
err = bpf_btf_get_info_by_fd(f.file, f.file->private_data, attr, uattr);
else if (f.file->f_op == &bpf_link_fops || f.file->f_op == &bpf_link_fops_poll)
err = bpf_link_get_info_by_fd(f.file, f.file->private_data,
else if (fd_file(f)->f_op == &btf_fops)
err = bpf_btf_get_info_by_fd(fd_file(f), fd_file(f)->private_data, attr, uattr);
else if (fd_file(f)->f_op == &bpf_link_fops || fd_file(f)->f_op == &bpf_link_fops_poll)
err = bpf_link_get_info_by_fd(fd_file(f), fd_file(f)->private_data,
attr, uattr);
else
err = -EINVAL;
@ -5222,7 +5222,7 @@ static int bpf_map_do_batch(const union bpf_attr *attr,
else if (cmd == BPF_MAP_LOOKUP_AND_DELETE_BATCH)
BPF_DO_BATCH(map->ops->map_lookup_and_delete_batch, map, attr, uattr);
else if (cmd == BPF_MAP_UPDATE_BATCH)
BPF_DO_BATCH(map->ops->map_update_batch, map, f.file, attr, uattr);
BPF_DO_BATCH(map->ops->map_update_batch, map, fd_file(f), attr, uattr);
else
BPF_DO_BATCH(map->ops->map_delete_batch, map, attr, uattr);
err_put:

10
kernel/bpf/token.c
View File

@ -122,10 +122,10 @@ int bpf_token_create(union bpf_attr *attr)
int err, fd;
f = fdget(attr->token_create.bpffs_fd);
if (!f.file)
if (!fd_file(f))
return -EBADF;
path = f.file->f_path;
path = fd_file(f)->f_path;
path_get(&path);
fdput(f);
@ -235,14 +235,14 @@ struct bpf_token *bpf_token_get_from_fd(u32 ufd)
struct fd f = fdget(ufd);
struct bpf_token *token;
if (!f.file)
if (!fd_file(f))
return ERR_PTR(-EBADF);
if (f.file->f_op != &bpf_token_fops) {
if (fd_file(f)->f_op != &bpf_token_fops) {
fdput(f);
return ERR_PTR(-EINVAL);
}
token = f.file->private_data;
token = fd_file(f)->private_data;
bpf_token_inc(token);
fdput(f);

4
kernel/cgroup/cgroup.c
View File

@ -6968,10 +6968,10 @@ struct cgroup *cgroup_v1v2_get_from_fd(int fd)
{
struct cgroup *cgrp;
struct fd f = fdget_raw(fd);
if (!f.file)
if (!fd_file(f))
return ERR_PTR(-EBADF);
cgrp = cgroup_v1v2_get_from_file(f.file);
cgrp = cgroup_v1v2_get_from_file(fd_file(f));
fdput(f);
return cgrp;
}

14
kernel/events/core.c
View File

@ -969,10 +969,10 @@ static inline int perf_cgroup_connect(int fd, struct perf_event *event,
struct fd f = fdget(fd);
int ret = 0;
if (!f.file)
if (!fd_file(f))
return -EBADF;
css = css_tryget_online_from_dir(f.file->f_path.dentry,
css = css_tryget_online_from_dir(fd_file(f)->f_path.dentry,
&perf_event_cgrp_subsys);
if (IS_ERR(css)) {
ret = PTR_ERR(css);
@ -6001,10 +6001,10 @@ static const struct file_operations perf_fops;
static inline int perf_fget_light(int fd, struct fd *p)
{
struct fd f = fdget(fd);
if (!f.file)
if (!fd_file(f))
return -EBADF;
if (f.file->f_op != &perf_fops) {
if (fd_file(f)->f_op != &perf_fops) {
fdput(f);
return -EBADF;
}
@ -6064,7 +6064,7 @@ static long _perf_ioctl(struct perf_event *event, unsigned int cmd, unsigned lon
ret = perf_fget_light(arg, &output);
if (ret)
return ret;
output_event = output.file->private_data;
output_event = fd_file(output)->private_data;
ret = perf_event_set_output(event, output_event);
fdput(output);
} else {
@ -12665,7 +12665,7 @@ SYSCALL_DEFINE5(perf_event_open,
struct perf_event_attr attr;
struct perf_event_context *ctx;
struct file *event_file = NULL;
struct fd group = {NULL, 0};
struct fd group = EMPTY_FD;
struct task_struct *task = NULL;
struct pmu *pmu;
int event_fd;
@ -12740,7 +12740,7 @@ SYSCALL_DEFINE5(perf_event_open,
err = perf_fget_light(group_fd, &group);
if (err)
goto err_fd;
group_leader = group.file->private_data;
group_leader = fd_file(group)->private_data;
if (flags & PERF_FLAG_FD_OUTPUT)
output_event = group_leader;
if (flags & PERF_FLAG_FD_NO_GROUP)

2
kernel/module/main.c
View File

@ -3234,7 +3234,7 @@ SYSCALL_DEFINE3(finit_module, int, fd, const char __user *, uargs, int, flags)
return -EINVAL;
f = fdget(fd);
err = idempotent_init_module(f.file, uargs, flags);
err = idempotent_init_module(fd_file(f), uargs, flags);
fdput(f);
return err;
}

12
kernel/nsproxy.c
View File

@ -550,15 +550,15 @@ SYSCALL_DEFINE2(setns, int, fd, int, flags)
struct nsset nsset = {};
int err = 0;
if (!f.file)
if (!fd_file(f))
return -EBADF;
if (proc_ns_file(f.file)) {
ns = get_proc_ns(file_inode(f.file));
if (proc_ns_file(fd_file(f))) {
ns = get_proc_ns(file_inode(fd_file(f)));
if (flags && (ns->ops->type != flags))
err = -EINVAL;
flags = ns->ops->type;
} else if (!IS_ERR(pidfd_pid(f.file))) {
} else if (!IS_ERR(pidfd_pid(fd_file(f)))) {
err = check_setns_flags(flags);
} else {
err = -EINVAL;
@ -570,10 +570,10 @@ SYSCALL_DEFINE2(setns, int, fd, int, flags)
if (err)
goto out;
if (proc_ns_file(f.file))
if (proc_ns_file(fd_file(f)))
err = validate_ns(&nsset, ns);
else
err = validate_nsset(&nsset, pidfd_pid(f.file));
err = validate_nsset(&nsset, pidfd_pid(fd_file(f)));
if (!err) {
commit_nsset(&nsset);
perf_event_namespaces(current);

10
kernel/pid.c
View File

@ -540,13 +540,13 @@ struct pid *pidfd_get_pid(unsigned int fd, unsigned int *flags)
struct pid *pid;
f = fdget(fd);
if (!f.file)
if (!fd_file(f))
return ERR_PTR(-EBADF);
pid = pidfd_pid(f.file);
pid = pidfd_pid(fd_file(f));
if (!IS_ERR(pid)) {
get_pid(pid);
*flags = f.file->f_flags;
*flags = fd_file(f)->f_flags;
}
fdput(f);
@ -755,10 +755,10 @@ SYSCALL_DEFINE3(pidfd_getfd, int, pidfd, int, fd,
return -EINVAL;
f = fdget(pidfd);
if (!f.file)
if (!fd_file(f))
return -EBADF;
pid = pidfd_pid(f.file);
pid = pidfd_pid(fd_file(f));
if (IS_ERR(pid))
ret = PTR_ERR(pid);
else

6
kernel/signal.c
View File

@ -3941,11 +3941,11 @@ SYSCALL_DEFINE4(pidfd_send_signal, int, pidfd, int, sig,
return -EINVAL;
f = fdget(pidfd);
if (!f.file)
if (!fd_file(f))
return -EBADF;
/* Is this a pidfd? */
pid = pidfd_to_pid(f.file);
pid = pidfd_to_pid(fd_file(f));
if (IS_ERR(pid)) {
ret = PTR_ERR(pid);
goto err;
@ -3958,7 +3958,7 @@ SYSCALL_DEFINE4(pidfd_send_signal, int, pidfd, int, sig,
switch (flags) {
case 0:
/* Infer scope from the type of pidfd. */
if (f.file->f_flags & PIDFD_THREAD)
if (fd_file(f)->f_flags & PIDFD_THREAD)
type = PIDTYPE_PID;
else
type = PIDTYPE_TGID;

10
kernel/sys.c
View File

@ -1916,10 +1916,10 @@ static int prctl_set_mm_exe_file(struct mm_struct *mm, unsigned int fd)
int err;
exe = fdget(fd);
if (!exe.file)
if (!fd_file(exe))
return -EBADF;
inode = file_inode(exe.file);
inode = file_inode(fd_file(exe));
/*
* Because the original mm->exe_file points to executable file, make
@ -1927,14 +1927,14 @@ static int prctl_set_mm_exe_file(struct mm_struct *mm, unsigned int fd)
* overall picture.
*/
err = -EACCES;
if (!S_ISREG(inode->i_mode) || path_noexec(&exe.file->f_path))
if (!S_ISREG(inode->i_mode) || path_noexec(&fd_file(exe)->f_path))
goto exit;
err = file_permission(exe.file, MAY_EXEC);
err = file_permission(fd_file(exe), MAY_EXEC);
if (err)
goto exit;
err = replace_mm_exe_file(mm, exe.file);
err = replace_mm_exe_file(mm, fd_file(exe));
exit:
fdput(exe);
return err;

4
kernel/taskstats.c
View File

@ -419,7 +419,7 @@ static int cgroupstats_user_cmd(struct sk_buff *skb, struct genl_info *info)
fd = nla_get_u32(info->attrs[CGROUPSTATS_CMD_ATTR_FD]);
f = fdget(fd);
if (!f.file)
if (!fd_file(f))
return 0;
size = nla_total_size(sizeof(struct cgroupstats));
@ -440,7 +440,7 @@ static int cgroupstats_user_cmd(struct sk_buff *skb, struct genl_info *info)
stats = nla_data(na);
memset(stats, 0, sizeof(*stats));
rc = cgroupstats_build(stats, f.file->f_path.dentry);
rc = cgroupstats_build(stats, fd_file(f)->f_path.dentry);
if (rc < 0) {
nlmsg_free(rep_skb);
goto err;

4
kernel/watch_queue.c
View File

@ -666,8 +666,8 @@ struct watch_queue *get_watch_queue(int fd)
struct fd f;
f = fdget(fd);
if (f.file) {
pipe = get_pipe_info(f.file, false);
if (fd_file(f)) {
pipe = get_pipe_info(fd_file(f), false);
if (pipe && pipe->watch_queue) {
wqueue = pipe->watch_queue;
kref_get(&wqueue->usage);

4
mm/fadvise.c
View File

@ -193,10 +193,10 @@ int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice)
struct fd f = fdget(fd);
int ret;
if (!f.file)
if (!fd_file(f))
return -EBADF;
ret = vfs_fadvise(f.file, offset, len, advice);
ret = vfs_fadvise(fd_file(f), offset, len, advice);
fdput(f);
return ret;

6
mm/filemap.c
View File

@ -4423,7 +4423,7 @@ SYSCALL_DEFINE4(cachestat, unsigned int, fd,
struct cachestat cs;
pgoff_t first_index, last_index;
if (!f.file)
if (!fd_file(f))
return -EBADF;
if (copy_from_user(&csr, cstat_range,
@ -4433,7 +4433,7 @@ SYSCALL_DEFINE4(cachestat, unsigned int, fd,
}
/* hugetlbfs is not supported */
if (is_file_hugepages(f.file)) {
if (is_file_hugepages(fd_file(f))) {
fdput(f);
return -EOPNOTSUPP;
}
@ -4447,7 +4447,7 @@ SYSCALL_DEFINE4(cachestat, unsigned int, fd,
last_index =
csr.len == 0 ? ULONG_MAX : (csr.off + csr.len - 1) >> PAGE_SHIFT;
memset(&cs, 0, sizeof(struct cachestat));
mapping = f.file->f_mapping;
mapping = fd_file(f)->f_mapping;
filemap_cachestat(mapping, first_index, last_index, &cs);
fdput(f);

12
mm/memcontrol-v1.c
View File

@ -1947,26 +1947,26 @@ static ssize_t memcg_write_event_control(struct kernfs_open_file *of,
INIT_WORK(&event->remove, memcg_event_remove);
efile = fdget(efd);
if (!efile.file) {
if (!fd_file(efile)) {
ret = -EBADF;
goto out_kfree;
}
event->eventfd = eventfd_ctx_fileget(efile.file);
event->eventfd = eventfd_ctx_fileget(fd_file(efile));
if (IS_ERR(event->eventfd)) {
ret = PTR_ERR(event->eventfd);
goto out_put_efile;
}
cfile = fdget(cfd);
if (!cfile.file) {
if (!fd_file(cfile)) {
ret = -EBADF;
goto out_put_eventfd;
}
/* the process need read permission on control file */
/* AV: shouldn't we check that it's been opened for read instead? */
ret = file_permission(cfile.file, MAY_READ);
ret = file_permission(fd_file(cfile), MAY_READ);
if (ret < 0)
goto out_put_cfile;
@ -1974,7 +1974,7 @@ static ssize_t memcg_write_event_control(struct kernfs_open_file *of,
* The control file must be a regular cgroup1 file. As a regular cgroup
* file can't be renamed, it's safe to access its name afterwards.
*/
cdentry = cfile.file->f_path.dentry;
cdentry = fd_file(cfile)->f_path.dentry;
if (cdentry->d_sb->s_type != &cgroup_fs_type || !d_is_reg(cdentry)) {
ret = -EINVAL;
goto out_put_cfile;
@ -2032,7 +2032,7 @@ static ssize_t memcg_write_event_control(struct kernfs_open_file *of,
if (ret)
goto out_put_css;
vfs_poll(efile.file, &event->pt);
vfs_poll(fd_file(efile), &event->pt);
spin_lock_irq(&memcg->event_list_lock);
list_add(&event->list, &memcg->event_list);

10
mm/readahead.c
View File

@ -678,7 +678,7 @@ ssize_t ksys_readahead(int fd, loff_t offset, size_t count)
ret = -EBADF;
f = fdget(fd);
if (!f.file || !(f.file->f_mode & FMODE_READ))
if (!fd_file(f) || !(fd_file(f)->f_mode & FMODE_READ))
goto out;
/*
@ -687,12 +687,12 @@ ssize_t ksys_readahead(int fd, loff_t offset, size_t count)
* on this file, then we must return -EINVAL.
*/
ret = -EINVAL;
if (!f.file->f_mapping || !f.file->f_mapping->a_ops ||
(!S_ISREG(file_inode(f.file)->i_mode) &&
!S_ISBLK(file_inode(f.file)->i_mode)))
if (!fd_file(f)->f_mapping || !fd_file(f)->f_mapping->a_ops ||
(!S_ISREG(file_inode(fd_file(f))->i_mode) &&
!S_ISBLK(file_inode(fd_file(f))->i_mode)))
goto out;
ret = vfs_fadvise(f.file, offset, count, POSIX_FADV_WILLNEED);
ret = vfs_fadvise(fd_file(f), offset, count, POSIX_FADV_WILLNEED);
out:
fdput(f);
return ret;

6
net/core/net_namespace.c
View File

@ -697,11 +697,11 @@ struct net *get_net_ns_by_fd(int fd)
struct fd f = fdget(fd);
struct net *net = ERR_PTR(-EINVAL);
if (!f.file)
if (!fd_file(f))
return ERR_PTR(-EBADF);
if (proc_ns_file(f.file)) {
struct ns_common *ns = get_proc_ns(file_inode(f.file));
if (proc_ns_file(fd_file(f))) {
struct ns_common *ns = get_proc_ns(file_inode(fd_file(f)));
if (ns->ops == &netns_operations)
net = get_net(container_of(ns, struct net, ns));
}

14
net/socket.c
View File

@ -556,10 +556,10 @@ static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
struct socket *sock;
*err = -EBADF;
if (f.file) {
sock = sock_from_file(f.file);
if (fd_file(f)) {
sock = sock_from_file(fd_file(f));
if (likely(sock)) {
*fput_needed = f.flags & FDPUT_FPUT;
*fput_needed = f.word & FDPUT_FPUT;
return sock;
}
*err = -ENOTSOCK;
@ -2014,8 +2014,8 @@ int __sys_accept4(int fd, struct sockaddr __user *upeer_sockaddr,
struct fd f;
f = fdget(fd);
if (f.file) {
ret = __sys_accept4_file(f.file, upeer_sockaddr,
if (fd_file(f)) {
ret = __sys_accept4_file(fd_file(f), upeer_sockaddr,
upeer_addrlen, flags);
fdput(f);
}
@ -2076,12 +2076,12 @@ int __sys_connect(int fd, struct sockaddr __user *uservaddr, int addrlen)
struct fd f;
f = fdget(fd);
if (f.file) {
if (fd_file(f)) {
struct sockaddr_storage address;
ret = move_addr_to_kernel(uservaddr, addrlen, &address);
if (!ret)
ret = __sys_connect_file(f.file, &address, addrlen, 0);
ret = __sys_connect_file(fd_file(f), &address, addrlen, 0);
fdput(f);
}

4
security/integrity/ima/ima_main.c
View File

@ -1068,10 +1068,10 @@ void ima_kexec_cmdline(int kernel_fd, const void *buf, int size)
return;
f = fdget(kernel_fd);
if (!f.file)
if (!fd_file(f))
return;
process_buffer_measurement(file_mnt_idmap(f.file), file_inode(f.file),
process_buffer_measurement(file_mnt_idmap(fd_file(f)), file_inode(fd_file(f)),
buf, size, "kexec-cmdline", KEXEC_CMDLINE, 0,
NULL, false, NULL, 0);
fdput(f);

22
security/landlock/syscalls.c
View File

@ -238,19 +238,19 @@ static struct landlock_ruleset *get_ruleset_from_fd(const int fd,
struct landlock_ruleset *ruleset;
ruleset_f = fdget(fd);
if (!ruleset_f.file)
if (!fd_file(ruleset_f))
return ERR_PTR(-EBADF);
/* Checks FD type and access right. */
if (ruleset_f.file->f_op != &ruleset_fops) {
if (fd_file(ruleset_f)->f_op != &ruleset_fops) {
ruleset = ERR_PTR(-EBADFD);
goto out_fdput;
}
if (!(ruleset_f.file->f_mode & mode)) {
if (!(fd_file(ruleset_f)->f_mode & mode)) {
ruleset = ERR_PTR(-EPERM);
goto out_fdput;
}
ruleset = ruleset_f.file->private_data;
ruleset = fd_file(ruleset_f)->private_data;
if (WARN_ON_ONCE(ruleset->num_layers != 1)) {
ruleset = ERR_PTR(-EINVAL);
goto out_fdput;
@ -277,22 +277,22 @@ static int get_path_from_fd(const s32 fd, struct path *const path)
/* Handles O_PATH. */
f = fdget_raw(fd);
if (!f.file)
if (!fd_file(f))
return -EBADF;
/*
* Forbids ruleset FDs, internal filesystems (e.g. nsfs), including
* pseudo filesystems that will never be mountable (e.g. sockfs,
* pipefs).
*/
if ((f.file->f_op == &ruleset_fops) ||
(f.file->f_path.mnt->mnt_flags & MNT_INTERNAL) ||
(f.file->f_path.dentry->d_sb->s_flags & SB_NOUSER) ||
d_is_negative(f.file->f_path.dentry) ||
IS_PRIVATE(d_backing_inode(f.file->f_path.dentry))) {
if ((fd_file(f)->f_op == &ruleset_fops) ||
(fd_file(f)->f_path.mnt->mnt_flags & MNT_INTERNAL) ||
(fd_file(f)->f_path.dentry->d_sb->s_flags & SB_NOUSER) ||
d_is_negative(fd_file(f)->f_path.dentry) ||
IS_PRIVATE(d_backing_inode(fd_file(f)->f_path.dentry))) {
err = -EBADFD;
goto out_fdput;
}
*path = f.file->f_path;
*path = fd_file(f)->f_path;
path_get(path);
out_fdput:

4
security/loadpin/loadpin.c
View File

@ -296,7 +296,7 @@ static int read_trusted_verity_root_digests(unsigned int fd)
return -EPERM;
f = fdget(fd);
if (!f.file)
if (!fd_file(f))
return -EINVAL;
data = kzalloc(SZ_4K, GFP_KERNEL);
@ -305,7 +305,7 @@ static int read_trusted_verity_root_digests(unsigned int fd)
goto err;
}
rc = kernel_read_file(f.file, 0, (void **)&data, SZ_4K - 1, NULL, READING_POLICY);
rc = kernel_read_file(fd_file(f), 0, (void **)&data, SZ_4K - 1, NULL, READING_POLICY);
if (rc < 0)
goto err;

6
sound/core/pcm_native.c
View File

@ -2250,12 +2250,12 @@ static int snd_pcm_link(struct snd_pcm_substream *substream, int fd)
bool nonatomic = substream->pcm->nonatomic;
CLASS(fd, f)(fd);
if (!f.file)
if (!fd_file(f))
return -EBADFD;
if (!is_pcm_file(f.file))
if (!is_pcm_file(fd_file(f)))
return -EBADFD;
pcm_file = f.file->private_data;
pcm_file = fd_file(f)->private_data;
substream1 = pcm_file->substream;
if (substream == substream1)

6
virt/kvm/eventfd.c
View File

@ -328,12 +328,12 @@ kvm_irqfd_assign(struct kvm *kvm, struct kvm_irqfd *args)
seqcount_spinlock_init(&irqfd->irq_entry_sc, &kvm->irqfds.lock);
f = fdget(args->fd);
if (!f.file) {
if (!fd_file(f)) {
ret = -EBADF;
goto out;
}
eventfd = eventfd_ctx_fileget(f.file);
eventfd = eventfd_ctx_fileget(fd_file(f));
if (IS_ERR(eventfd)) {
ret = PTR_ERR(eventfd);
goto fail;
@ -420,7 +420,7 @@ kvm_irqfd_assign(struct kvm *kvm, struct kvm_irqfd *args)
* Check if there was an event already pending on the eventfd
* before we registered, and trigger it as if we didn't miss it.
*/
events = vfs_poll(f.file, &irqfd->pt);
events = vfs_poll(fd_file(f), &irqfd->pt);
if (events & EPOLLIN)
schedule_work(&irqfd->inject);

8
virt/kvm/vfio.c
View File

@ -194,7 +194,7 @@ static int kvm_vfio_file_del(struct kvm_device *dev, unsigned int fd)
int ret;
f = fdget(fd);
if (!f.file)
if (!fd_file(f))
return -EBADF;
ret = -ENOENT;
@ -202,7 +202,7 @@ static int kvm_vfio_file_del(struct kvm_device *dev, unsigned int fd)
mutex_lock(&kv->lock);
list_for_each_entry(kvf, &kv->file_list, node) {
if (kvf->file != f.file)
if (kvf->file != fd_file(f))
continue;
list_del(&kvf->node);
@ -240,7 +240,7 @@ static int kvm_vfio_file_set_spapr_tce(struct kvm_device *dev,
return -EFAULT;
f = fdget(param.groupfd);
if (!f.file)
if (!fd_file(f))
return -EBADF;
ret = -ENOENT;
@ -248,7 +248,7 @@ static int kvm_vfio_file_set_spapr_tce(struct kvm_device *dev,
mutex_lock(&kv->lock);
list_for_each_entry(kvf, &kv->file_list, node) {
if (kvf->file != f.file)
if (kvf->file != fd_file(f))
continue;
if (!kvf->iommu_group) {