A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 18:51:56 -04:00
Code Issues Projects Releases Packages Wiki Activity

block: make sure discard bio is aligned with logical block size

Browse source 
Obviously the created discard bio has to be aligned with logical block size.

This patch introduces the helper of bio_allowed_max_sectors() for
this purpose.

Cc: [email protected]
Cc: Mike Snitzer <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Xiao Ni <[email protected]>
Cc: Mariusz Dabrowski <[email protected]>
Fixes: 744889b7cb ("block: don't deal with discard limit in blkdev_issue_discard()")
Fixes: a22c4d7e34 ("block: re-add discard_granularity and alignment checks")
Reported-by: Rui Salvaterra <[email protected]>
Tested-by: Rui Salvaterra <[email protected]>
Signed-off-by: Ming Lei <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Ming Lei 2018-10-29 20:57:17 +08:00 • committed by Jens Axboe
commit 1adfc5e413
3 changed files with 13 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

3
block/blk-lib.c
View file

@ -57,8 +57,7 @@ int __blkdev_issue_discard(struct block_device *bdev, sector_t sector,
if (!req_sects)
goto fail;
if (req_sects > UINT_MAX >> 9)
req_sects = UINT_MAX >> 9;
req_sects = min(req_sects, bio_allowed_max_sectors(q));
end_sect = sector + req_sects;