mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

f2fs: ensure only power of 2 zone sizes are allowed 

F2FS zoned support has power of 2 zone size assumption in many places
such as in __f2fs_issue_discard_zone, init_blkz_info. As the power of 2
requirement has been removed from the block layer, explicitly add a
condition in f2fs to allow only power of 2 zone size devices.

This condition will be relaxed once those calculation based on power of
2 is made generic.

Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Pankaj Raghav <p.raghav@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Luis Chamberlain 2022-04-27 18:02:54 +02:00 committed by Jaegeuk Kim
parent d46db4595b
commit 7f262f7375
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
fs/f2fs/super.c
View File

@ -3658,6 +3658,10 @@ static int init_blkz_info(struct f2fs_sb_info *sbi, int devi)
return 0;
zone_sectors = bdev_zone_sectors(bdev);
if (!is_power_of_2(zone_sectors)) {
f2fs_err(sbi, "F2FS does not support non power of 2 zone sizes\n");
return -EINVAL;
}
if (sbi->blocks_per_blkz && sbi->blocks_per_blkz !=
SECTOR_TO_BLOCK(zone_sectors))