ext4: add extra check in ext4_mb_mark_bb() to prevent against possible corruption

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This patch adds an extra checks in ext4_mb_mark_bb() function
to make sure we mark & report error if we were to mark/clear any
of the critical FS metadata specific bitmaps (&bail out) to prevent
from any accidental corruption.

Suggested-by: Jan Kara <jack@suse.cz>
Signed-off-by: Ritesh Harjani <riteshh@linux.ibm.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/53cbb6f2573db162a57f935365050d8b1df202ee.1644992610.git.riteshh@linux.ibm.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

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Ritesh Harjani 2022-02-16 12:32:51 +05:30 • committed by Theodore Ts'o

parent a00b482b82

commit 8c91c57907

1 changed files with 8 additions and 0 deletions

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fs/ext4/mballoc.c

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