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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse

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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  fuse: fix ioctl ABI
  fuse: allow batching of FORGET requests
  fuse: separate queue for FORGET requests
  fuse: ioctl cleanup

Fix up trivial conflict in fs/fuse/inode.c due to RCU lookup having done
the RCU-freeing of the inode in fuse_destroy_inode().
This commit is contained in:
Linus Torvalds
2011-01-10 07:43:54 -08:00
parent 0dc1488527 1baa26b2be
commit 7d44b04401
6 changed files with 281 additions and 77 deletions
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30
fs/fuse/inode.c
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@@ -71,6 +71,11 @@ struct fuse_mount_data {
unsigned blksize;
};
struct fuse_forget_link *fuse_alloc_forget()
{
return kzalloc(sizeof(struct fuse_forget_link), GFP_KERNEL);
}
static struct inode *fuse_alloc_inode(struct super_block *sb)
{
struct inode *inode;
@@ -90,8 +95,8 @@ static struct inode *fuse_alloc_inode(struct super_block *sb)
INIT_LIST_HEAD(&fi->queued_writes);
INIT_LIST_HEAD(&fi->writepages);
init_waitqueue_head(&fi->page_waitq);
fi->forget_req = fuse_request_alloc();
if (!fi->forget_req) {
fi->forget = fuse_alloc_forget();
if (!fi->forget) {
kmem_cache_free(fuse_inode_cachep, inode);
return NULL;
}
@@ -111,24 +116,10 @@ static void fuse_destroy_inode(struct inode *inode)
struct fuse_inode *fi = get_fuse_inode(inode);
BUG_ON(!list_empty(&fi->write_files));
BUG_ON(!list_empty(&fi->queued_writes));
if (fi->forget_req)
fuse_request_free(fi->forget_req);
kfree(fi->forget);
call_rcu(&inode->i_rcu, fuse_i_callback);
}
void fuse_send_forget(struct fuse_conn *fc, struct fuse_req *req,
u64 nodeid, u64 nlookup)
{
struct fuse_forget_in *inarg = &req->misc.forget_in;
inarg->nlookup = nlookup;
req->in.h.opcode = FUSE_FORGET;
req->in.h.nodeid = nodeid;
req->in.numargs = 1;
req->in.args[0].size = sizeof(struct fuse_forget_in);
req->in.args[0].value = inarg;
fuse_request_send_noreply(fc, req);
}
static void fuse_evict_inode(struct inode *inode)
{
truncate_inode_pages(&inode->i_data, 0);
@@ -136,8 +127,8 @@ static void fuse_evict_inode(struct inode *inode)
if (inode->i_sb->s_flags & MS_ACTIVE) {
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_inode *fi = get_fuse_inode(inode);
fuse_send_forget(fc, fi->forget_req, fi->nodeid, fi->nlookup);
fi->forget_req = NULL;
fuse_queue_forget(fc, fi->forget, fi->nodeid, fi->nlookup);
fi->forget = NULL;
}
}
@@ -541,6 +532,7 @@ void fuse_conn_init(struct fuse_conn *fc)
INIT_LIST_HEAD(&fc->interrupts);
INIT_LIST_HEAD(&fc->bg_queue);
INIT_LIST_HEAD(&fc->entry);
fc->forget_list_tail = &fc->forget_list_head;
atomic_set(&fc->num_waiting, 0);
fc->max_background = FUSE_DEFAULT_MAX_BACKGROUND;
fc->congestion_threshold = FUSE_DEFAULT_CONGESTION_THRESHOLD;