ext4: trim allocation requests to group size

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If filesystem groups are artifically small (using parameter -g to
mkfs.ext4), ext4_mb_normalize_request() can result in a request that is
larger than a block group. Trim the request size to not confuse
allocation code.

Reported-by: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org

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Jan Kara 2017-01-27 14:34:30 -05:00 • committed by Theodore Ts'o

parent 43c73221b3

commit cd648b8a8f

1 changed files with 7 additions and 0 deletions

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fs/ext4/mballoc.c

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