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authorTheodore Ts'o <tytso@mit.edu>2011-05-09 10:58:45 -0400
committerTheodore Ts'o <tytso@mit.edu>2011-05-09 10:58:45 -0400
commit2cd05cc39347ddd8994b7f63ab5cb886f042477f (patch)
tree72f981c17f079daa180de739d032faa6956ecef1 /fs/ext4/ext4_jbd2.c
parent2846e82004a8d5ef0a63cd3209c84ea5cd796f11 (diff)
downloadop-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.c14
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)
{
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