ext4: fix block bitmap initialization under sparse_super2

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The ext4_bg_has_super() function doesn't know about the new rules for
where backup superblocks go on a sparse_super2 filesystem.  Therefore,
block bitmap initialization doesn't know that it shouldn't reserve
space for backups in groups that are never going to contain backups.
The result of this is e2fsck complaining about the block bitmap being
incorrect (fortunately not in a way that results in cross-linked
files), so fix the whole thing.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

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Darrick J. Wong 2014-05-12 10:16:06 -04:00 • committed by Theodore Ts'o

parent bd63f6b0cd

commit 1beeef1b56

2 changed files with 22 additions and 15 deletions

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33

fs/ext4/balloc.c

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4

fs/ext4/ext4.h

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