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| author | Theodore Ts'o <tytso@mit.edu> | 2011-05-09 10:58:45 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2011-05-09 10:58:45 -0400 |
| commit | 2cd05cc39347ddd8994b7f63ab5cb886f042477f (patch) | |
| tree | 72f981c17f079daa180de739d032faa6956ecef1 /fs/ext4/ext4_jbd2.c | |
| parent | 2846e82004a8d5ef0a63cd3209c84ea5cd796f11 (diff) | |
| download | op-kernel-dev-2cd05cc39347ddd8994b7f63ab5cb886f042477f.zip op-kernel-dev-2cd05cc39347ddd8994b7f63ab5cb886f042477f.tar.gz | |
ext4: remove unneeded ext4_journal_get_undo_access
The block allocation code used to use jbd2_journal_get_undo_access as
a way to make changes that wouldn't show up until the commit took
place. The new multi-block allocation code has a its own way of
preventing newly freed blocks from getting reused until the commit
takes place (it avoids updating the buddy bitmaps until the commit is
done), so we don't need to use jbd2_journal_get_undo_access(), which
has extra overhead compared to jbd2_journal_get_write_access().
There was one last vestigal use of ext4_journal_get_undo_access() in
ext4_add_groupblocks(); change it to use ext4_journal_get_write_access()
and then remove the ext4_journal_get_undo_access() support.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/ext4_jbd2.c')
| -rw-r--r-- | fs/ext4/ext4_jbd2.c | 14 |
1 files changed, 0 insertions, 14 deletions
diff --git a/fs/ext4/ext4_jbd2.c b/fs/ext4/ext4_jbd2.c index 6e272ef..f5240aa 100644 --- a/fs/ext4/ext4_jbd2.c +++ b/fs/ext4/ext4_jbd2.c @@ -6,20 +6,6 @@ #include <trace/events/ext4.h> -int __ext4_journal_get_undo_access(const char *where, unsigned int line, - handle_t *handle, struct buffer_head *bh) -{ - int err = 0; - - if (ext4_handle_valid(handle)) { - err = jbd2_journal_get_undo_access(handle, bh); - if (err) - ext4_journal_abort_handle(where, line, __func__, bh, - handle, err); - } - return err; -} - int __ext4_journal_get_write_access(const char *where, unsigned int line, handle_t *handle, struct buffer_head *bh) { |
