ext4: fix scheduling in atomic on group checksum failure

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commit 05145bd799 upstream.

When block group checksum is wrong, we call ext4_error() while holding
group spinlock from ext4_init_block_bitmap() or
ext4_init_inode_bitmap() which results in scheduling while in atomic.
Fix the issue by calling ext4_error() later after dropping the spinlock.

Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Jan Kara 2016-02-11 23:15:12 -05:00 • committed by Greg Kroah-Hartman

parent 5859b90777

commit 33f48f8ab0

2 changed files with 8 additions and 5 deletions

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7

fs/ext4/balloc.c

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6

fs/ext4/ialloc.c

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