Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b73fce69ecb091a178ef9286027c370a63eb25aa
Commit: b73fce69ecb091a178ef9286027c370a63eb25aa
Parent: 55bd725aa3a83b3935988f37275b5a80e10d4169
Author: Valerie Clement <[EMAIL PROTECTED]>
AuthorDate: Fri Feb 15 13:48:51 2008 -0500
Committer: Theodore Ts'o <[EMAIL PROTECTED]>
CommitDate: Fri Feb 15 13:48:51 2008 -0500
ext4: Fix kernel BUG at fs/ext4/mballoc.c:910!
With the flex_bg feature enabled, a large file creation oopses the
kernel. The BUG_ON is:
BUG_ON(len >= EXT4_BLOCKS_PER_GROUP(sb));
As the allocation of the bitmaps and the inode table can be done
outside the block group with flex_bg, this allows to allocate up to
EXT4_BLOCKS_PER_GROUP blocks in a group.
This patch fixes the oops.
Signed-off-by: Valerie Clement <[EMAIL PROTECTED]>
Signed-off-by: Mingming Cao <[EMAIL PROTECTED]>
Signed-off-by: "Theodore Ts'o" <[EMAIL PROTECTED]>
---
fs/ext4/mballoc.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index dd0fcfc..2121184 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -906,7 +906,7 @@ static void ext4_mb_mark_free_simple(struct super_block *sb,
unsigned short chunk;
unsigned short border;
- BUG_ON(len >= EXT4_BLOCKS_PER_GROUP(sb));
+ BUG_ON(len > EXT4_BLOCKS_PER_GROUP(sb));
border = 2 << sb->s_blocksize_bits;
-
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