linux/fs
Jens Axboe 230d50d448 io_uring: move reissue into regular IO path
It's non-obvious how retry is done for block backed files, when it happens
off the kiocb done path. It also makes it tricky to deal with the iov_iter
handling.

Just mark the req as needing a reissue, and handling it from the
submission path instead. This makes it directly obvious that we're not
re-importing the iovec from userspace past the submit point, and it means
that we can just reuse our usual -EAGAIN retry path from the read/write
handling.

At some point in the future, we'll gain the ability to always reliably
return -EAGAIN through the stack. A previous attempt on the block side
didn't pan out and got reverted, hence the need to check for this
information out-of-band right now.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-04-02 09:24:20 -06:00
..
9p Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2021-02-27 08:07:12 -08:00
adfs
affs
afs
autofs
befs
bfs
btrfs for-5.12-rc1-tag 2021-03-05 12:21:14 -08:00
cachefiles
ceph
cifs cifs/smb3 fixes including improvements to mode bit conversion when using cifsacl mount option, new mount options for controlling attribute caching, improvements to crediting and reconnect, improved debugging 2021-02-26 14:09:41 -08:00
coda
configfs
cramfs
crypto
debugfs
devpts
dlm
ecryptfs
efivarfs
efs
erofs block-5.12-2021-02-27 2021-02-28 11:23:38 -08:00
exfat
exportfs
ext2
ext4 block-5.12-2021-02-27 2021-02-28 11:23:38 -08:00
f2fs block-5.12-2021-02-27 2021-02-28 11:23:38 -08:00
fat
freevxfs
fscache
fuse
gfs2 Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2021-02-27 08:07:12 -08:00
hfs
hfsplus
hostfs
hpfs
hugetlbfs hugetlbfs: remove unneeded return value of hugetlb_vmtruncate() 2021-02-24 13:38:35 -08:00
iomap More new code for 5.12: 2021-02-28 11:45:25 -08:00
isofs
jbd2
jffs2
jfs Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2021-02-27 08:07:12 -08:00
kernfs
lockd
minix
nfs block-5.12-2021-02-27 2021-02-28 11:23:38 -08:00
nfs_common
nfsd
nilfs2
nls
notify
ntfs
ocfs2
omfs
openpromfs
orangefs
overlayfs
proc io_uring-worker.v3-2021-02-25 2021-02-27 08:29:02 -08:00
pstore pstore fixes for v5.12-rc2 2021-03-05 17:21:25 -08:00
qnx4
qnx6
quota
ramfs
reiserfs
romfs
squashfs
sysfs
sysv
tracefs
ubifs
udf
ufs
unicode
vboxsf
verity
xfs More new code for 5.12: 2021-02-28 11:45:25 -08:00
zonefs
aio.c
anon_inodes.c
attr.c
bad_inode.c
binfmt_aout.c
binfmt_elf_fdpic.c
binfmt_elf.c
binfmt_em86.c
binfmt_flat.c
binfmt_misc.c
binfmt_script.c
block_dev.c block-5.12-2021-02-27 2021-02-28 11:23:38 -08:00
buffer.c
char_dev.c
compat_binfmt_elf.c
coredump.c fs/coredump: use kmap_local_page() 2021-02-26 09:41:05 -08:00
d_path.c
dax.c
dcache.c
direct-io.c block-5.12-2021-02-27 2021-02-28 11:23:38 -08:00
drop_caches.c
eventfd.c
eventpoll.c
exec.c
fcntl.c
fhandle.c
file_table.c
file.c
filesystems.c
fs_context.c
fs_parser.c
fs_pin.c
fs_struct.c
fs_types.c
fs-writeback.c
fsopen.c
init.c
inode.c Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2021-02-27 08:07:12 -08:00
internal.h
io_uring.c io_uring: move reissue into regular IO path 2021-04-02 09:24:20 -06:00
io-wq.c io_uring/io-wq: protect against sprintf overflow 2021-04-01 09:21:18 -06:00
io-wq.h io_uring: remove structures from include/linux/io_uring.h 2021-03-18 09:44:35 -06:00
ioctl.c
Kconfig
Kconfig.binfmt
kernel_read_file.c
libfs.c
locks.c
Makefile
mbcache.c
mount.h
mpage.c block: Add bio_max_segs 2021-02-26 15:49:51 -07:00
namei.c
namespace.c Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2021-02-27 08:07:12 -08:00
no-block.c
nsfs.c
open.c
pipe.c
pnode.c
pnode.h
posix_acl.c
proc_namespace.c
read_write.c
readdir.c
remap_range.c
select.c
seq_file.c
signalfd.c
splice.c
stack.c
stat.c
statfs.c
super.c
sync.c
timerfd.c
userfaultfd.c
utimes.c
xattr.c