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authorJoseph Qi <joseph.qi@huawei.com>2014-06-05 01:06:17 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2014-06-05 01:53:54 +0200
commit17bf1418b78d9c51370f29c2b840f7d0a1bf311a (patch)
tree3be1bc2fe567f37c322bd1f4c1b5593e1b959bcc /lib/bitmap.c
parentocfs2: cleanup unused paramters in ocfs2_calc_new_backup_super (diff)
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ocfs2: fix incorrect i_size of global bitmap inode after resize
Ocfs2 cluster size may be 1MB, which has 20 bits. When resize, the input new clusters is mostly the number of clusters in a group descriptor(32256). Since the input clusters is defined as type int, so it will overflow when shift left 20 bits and then lead to incorrect global bitmap i_size. Signed-off-by: Joseph Qi <joseph.qi@huawei.com> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker <jlbec@evilplan.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/bitmap.c')
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