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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2024-09-16 13:50:14 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2024-09-16 13:50:14 +0200 |
| commit | adfc3ded5c33d67e822525f95404ef0becb099b8 (patch) | |
| tree | 60b29e7650d2482cee936505e1b5c3363005efdd /block/fops.c | |
| parent | 26bb0d3f38a764b743a3ad5c8b6e5b5044d7ceb4 (diff) | |
| parent | 50c52250e2d74b098465841163c18f4b4e9ad430 (diff) | |
Merge tag 'for-6.12/io_uring-discard-20240913' of git://git.kernel.dk/linux
Pull io_uring async discard support from Jens Axboe:
"Sitting on top of both the 6.12 block and io_uring core branches,
here's support for async discard through io_uring.
This allows applications to issue async discards, rather than rely on
the blocking sync ioctl discards we already have. The sync support is
difficult to use outside of idle/cleanup periods.
On a real (but slow) device, testing shows the following results when
compared to sync discard:
qd64 sync discard: 21K IOPS, lat avg 3 msec (max 21 msec)
qd64 async discard: 76K IOPS, lat avg 845 usec (max 2.2 msec)
qd64 sync discard: 14K IOPS, lat avg 5 msec (max 25 msec)
qd64 async discard: 56K IOPS, lat avg 1153 usec (max 3.6 msec)
and synthetic null_blk testing with the same queue depth and block
size settings as above shows:
Type Trim size IOPS Lat avg (usec) Lat Max (usec)
==============================================================
sync 4k 144K 444 20314
async 4k 1353K 47 595
sync 1M 56K 1136 21031
async 1M 94K 680 760"
* tag 'for-6.12/io_uring-discard-20240913' of git://git.kernel.dk/linux:
block: implement async io_uring discard cmd
block: introduce blk_validate_byte_range()
filemap: introduce filemap_invalidate_pages
io_uring/cmd: give inline space in request to cmds
io_uring/cmd: expose iowq to cmds
Diffstat (limited to 'block/fops.c')
| -rw-r--r-- | block/fops.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/block/fops.c b/block/fops.c index 35c47a304727..e69deb6d8635 100644 --- a/block/fops.c +++ b/block/fops.c @@ -17,6 +17,7 @@ #include <linux/fs.h> #include <linux/iomap.h> #include <linux/module.h> +#include <linux/io_uring/cmd.h> #include "blk.h" static inline struct inode *bdev_file_inode(struct file *file) @@ -865,6 +866,7 @@ const struct file_operations def_blk_fops = { .splice_read = filemap_splice_read, .splice_write = iter_file_splice_write, .fallocate = blkdev_fallocate, + .uring_cmd = blkdev_uring_cmd, .fop_flags = FOP_BUFFER_RASYNC, }; |