tree 197eb2ce1cba325e14d9af85990f05087879ff30
parent 599ea31d13617c5484c40cdf50d88301dc351cfc
author Xin Yin <yinxin.x@bytedance.com> 1641786701 +0800
committer Theodore Ts'o <tytso@mit.edu> 1643903784 -0500

ext4: modify the logic of ext4_mb_new_blocks_simple

For now in ext4_mb_new_blocks_simple, if we found a block which
should be excluded then will switch to next group, this may
probably cause 'group' run out of range.

Change to check next block in the same group when get a block should
be excluded. Also change the search range to EXT4_CLUSTERS_PER_GROUP
and add error checking.

Signed-off-by: Xin Yin <yinxin.x@bytedance.com>
Reviewed-by: Harshad Shirwadkar <harshadshirwadkar@gmail.com>
Link: https://lore.kernel.org/r/20220110035141.1980-3-yinxin.x@bytedance.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org