io_uring: track io length in async_list based on bytes

Browse source

We are using PAGE_SIZE as the unit to determine if the total len in
async_list has exceeded max_pages, it's not fair for smaller io sizes.
For example, if we are doing 1k-size io streams, we will never exceed
max_pages since len >>= PAGE_SHIFT always gets zero. So use original
bytes to make it more accurate.

Signed-off-by: Zhengyuan Liu <liuzhengyuan@kylinos.cn>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

...

This commit is contained in:

Zhengyuan Liu 2019-07-22 10:23:27 +08:00 • committed by Jens Axboe

parent bd11b3a391

commit 9310a7ba6d

1 changed files with 11 additions and 13 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

22

fs/io_uring.c

View file