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authorTheodore Ts'o <tytso@mit.edu>2009-01-30 00:00:24 -0500
committerTheodore Ts'o <tytso@mit.edu>2009-01-30 00:00:24 -0500
commitb9ec63f78b425c0e16cc95605b5d4ff2dc228b97 (patch)
tree702f3b10c7462a94fb130133257a063a289d495f
parent9fd9784c91db79e953ea3fe3741f885bdc390a72 (diff)
ext4: Remove bogus BUG() check in ext4_bmap()
The code to support journal-less ext4 operation added a BUG to ext4_bmap() which fired if there was no journal and the EXT4_STATE_JDATA bit was set in the i_state field. This caused running the filefrag program (which uses the FIMBAP ioctl) to trigger a BUG(). The EXT4_STATE_JDATA bit is only used for ext4_bmap(), and it's harmless for the bit to be set. We could add a check in __ext4_journalled_writepage() and ext4_journalled_write_end() to only set the EXT4_STATE_JDATA bit if the journal is present, but that adds an extra test and jump instruction. It's easier to simply remove the BUG check. http://bugzilla.kernel.org/show_bug.cgi?id=12568 Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: stable@kernel.org
-rw-r--r--fs/ext4/inode.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index b4386dafeb0..03ba20be132 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -2821,9 +2821,6 @@ static sector_t ext4_bmap(struct address_space *mapping, sector_t block)
filemap_write_and_wait(mapping);
}
- BUG_ON(!EXT4_JOURNAL(inode) &&
- EXT4_I(inode)->i_state & EXT4_STATE_JDATA);
-
if (EXT4_JOURNAL(inode) && EXT4_I(inode)->i_state & EXT4_STATE_JDATA) {
/*
* This is a REALLY heavyweight approach, but the use of