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| author | Theodore Ts'o <tytso@mit.edu> | 2009-09-10 05:32:41 +0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2009-09-10 05:32:41 +0400 |
| commit | c7acb4c16646943180bd221c167a077e0a084f9c (patch) | |
| tree | bb6f867bffc867b5c160fcb09e3054e66d7cf2f6 | |
| parent | 80e42468d65475e92651e62175bb7807773321d0 (diff) | |
| download | linux-c7acb4c16646943180bd221c167a077e0a084f9c.tar.xz | |
ext4: Use bforget() in no journal mode for ext4_journal_{forget,revoke}()
When ext4 is using a journal, a metadata block which is deallocated
must be passed into the journal layer so it can be dropped from the
current transaction and/or revoked. This is done by calling the
functions ext4_journal_forget() and ext4_journal_revoke(), which call
jbd2_journal_forget(), and jbd2_journal_revoke(), respectively.
Since the jbd2_journal_forget() and jbd2_journal_revoke() call
bforget(), if ext4 is not using a journal, ext4_journal_forget() and
ext4_journal_revoke() must call bforget() to avoid a dirty metadata
block overwriting a block after it has been reallocated and reused for
another inode's data block.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| -rw-r--r-- | fs/ext4/ext4_jbd2.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/ext4/ext4_jbd2.c b/fs/ext4/ext4_jbd2.c index eb27fd0f2ee8..ecb9ca455fd5 100644 --- a/fs/ext4/ext4_jbd2.c +++ b/fs/ext4/ext4_jbd2.c @@ -44,7 +44,7 @@ int __ext4_journal_forget(const char *where, handle_t *handle, handle, err); } else - brelse(bh); + bforget(bh); return err; } @@ -60,7 +60,7 @@ int __ext4_journal_revoke(const char *where, handle_t *handle, handle, err); } else - brelse(bh); + bforget(bh); return err; } |