Jens Axboe d4755e1538 io_uring: avoid hashing O_DIRECT writes if the filesystem doesn't need it ... io_uring hashes writes to a given file/inode so that it can serialize them. This is useful if the file system needs exclusive access to the file to perform the write, as otherwise we end up with a ton of io-wq threads trying to lock the inode at the same time. This can cause excessive system time. But if the file system has flagged that it supports parallel O_DIRECT writes, then there's no need to serialize the writes. Check for that through FMODE_DIO_PARALLEL_WRITE and don't hash it if we don't need to. In a basic test of 8 threads writing to a file on XFS on a gen2 Optane, with each thread writing in 4k chunks, it improves performance from ~1350K IOPS (or ~5290MiB/sec) to ~1410K IOPS (or ~5500MiB/sec). Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>		2023-04-03 07:14:20 -06:00
..
advise.c	io_uring: always go async for unsupported fadvise flags	2023-01-29 15:18:26 -07:00
advise.h
alloc_cache.h	io_uring: fix poll/netmsg alloc caches	2023-03-30 06:53:42 -06:00
cancel.c	io_uring/cancel: re-grab ctx mutex after finishing wait	2022-12-21 13:31:40 -07:00
cancel.h
epoll.c	io_uring: make io_kiocb_to_cmd() typesafe	2022-08-12 17:01:00 -06:00
epoll.h
fdinfo.c	capability: just use a 'u64' instead of a 'u32[2]' array	2023-03-01 10:01:22 -08:00
fdinfo.h
filetable.c	io_uring/rsrc: fix null-ptr-deref in io_file_bitmap_get()	2023-03-22 11:04:55 -06:00
filetable.h	io_uring: kill hot path fixed file bitmap debug checks	2022-10-16 17:07:53 -06:00
fs.c	io_uring: for requests that require async, force it	2023-01-29 15:18:26 -07:00
fs.h
io_uring.c	io_uring: avoid hashing O_DIRECT writes if the filesystem doesn't need it	2023-04-03 07:14:20 -06:00
io_uring.h	io_uring: mark task TASK_RUNNING before handling resume/task work	2023-02-06 08:23:21 -07:00
io-wq.c	io_uring/io-wq: stop setting PF_NO_SETAFFINITY on io-wq workers	2023-03-08 08:48:13 -07:00
io-wq.h	io_uring: move list helpers to a separate file	2022-07-24 18:39:15 -06:00
kbuf.c	io_uring: fix size calculation when registering buf ring	2023-02-22 09:57:23 -07:00
kbuf.h	io_uring: allow buffer recycling in READV	2022-09-21 10:30:43 -06:00
Makefile
msg_ring.c	io_uring/msg_ring: let target know allocated index	2023-03-16 07:16:56 -06:00
msg_ring.h	io_uring: get rid of double locking	2022-12-07 06:47:13 -07:00
net.c	io_uring/net: avoid sending -ECONNABORTED on repeated connection requests	2023-03-20 20:44:45 -06:00
net.h	io_uring/net: zerocopy sendmsg	2022-09-21 13:15:02 -06:00
nop.c
nop.h
notif.c	io_uring: refactor req allocation	2023-01-29 15:17:41 -07:00
notif.h	io_uring: move zc reporting from the hot path	2022-11-21 07:38:31 -07:00
opdef.c	io_uring,audit: don't log IORING_OP_MADVISE	2023-02-10 16:00:30 -07:00
opdef.h	io_uring: Split io_issue_def struct	2023-01-29 15:17:41 -07:00
openclose.c	io_uring: always go async for unsupported open flags	2023-01-29 15:18:26 -07:00
openclose.h
poll.c	io_uring/poll: clear single/double poll flags on poll arming	2023-03-28 07:09:01 -06:00
poll.h	io_uring/poll: allow some retries for poll triggering spuriously	2023-02-25 20:10:13 -07:00
refs.h
rsrc.c	io_uring/rsrc: fix null-ptr-deref in io_file_bitmap_get()	2023-03-22 11:04:55 -06:00
rsrc.h	io_uring/rsrc: fix rogue rsrc node grabbing	2023-03-29 09:23:46 -06:00
rw.c	for-6.3/iter-ubuf-2023-02-16	2023-02-20 14:03:57 -08:00
rw.h	io_uring/rw: don't lose partial IO result on fail	2022-09-21 13:15:02 -06:00
slist.h	io_uring: silence variable ‘prev’ set but not used warning	2023-03-09 10:10:58 -07:00
splice.c	io_uring: for requests that require async, force it	2023-01-29 15:18:26 -07:00
splice.h
sqpoll.c	io_uring/sqpoll: Do not set PF_NO_SETAFFINITY on sqpoll threads	2023-03-15 06:50:59 -06:00
sqpoll.h	io_uring: make io_sqpoll_wait_sq return void	2023-01-29 15:17:40 -07:00
statx.c	io_uring: for requests that require async, force it	2023-01-29 15:18:26 -07:00
statx.h
sync.c	io_uring: for requests that require async, force it	2023-01-29 15:18:26 -07:00
sync.h
tctx.c	io_uring: rename 'in_idle' to 'in_cancel'	2023-02-22 09:57:23 -07:00
tctx.h	io_uring: simplify __io_uring_add_tctx_node	2022-10-07 12:25:30 -06:00
timeout.c	io_uring: ease timeout flush locking requirements	2022-12-14 08:53:35 -07:00
timeout.h	io_uring: remove unused return from io_disarm_next	2022-09-21 13:15:01 -06:00
uring_cmd.c	block-6.3-2023-03-24	2023-03-24 14:10:39 -07:00
uring_cmd.h
xattr.c	io_uring: for requests that require async, force it	2023-01-29 15:18:26 -07:00
xattr.h