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| author | Theodore Ts'o <tytso@mit.edu> | 2009-09-09 21:32:41 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2009-09-09 21:32:41 -0400 |
| commit | c7acb4c16646943180bd221c167a077e0a084f9c (patch) | |
| tree | bb6f867bffc867b5c160fcb09e3054e66d7cf2f6 /fs/ext4/fsync.c | |
| parent | 80e42468d65475e92651e62175bb7807773321d0 (diff) | |
| download | op-kernel-dev-c7acb4c16646943180bd221c167a077e0a084f9c.zip op-kernel-dev-c7acb4c16646943180bd221c167a077e0a084f9c.tar.gz | |
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>
Diffstat (limited to 'fs/ext4/fsync.c')
0 files changed, 0 insertions, 0 deletions
