From 2cd05cc39347ddd8994b7f63ab5cb886f042477f Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Mon, 9 May 2011 10:58:45 -0400 Subject: 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" --- fs/ext4/ext4_jbd2.h | 5 ----- 1 file changed, 5 deletions(-) (limited to 'fs/ext4/ext4_jbd2.h') diff --git a/fs/ext4/ext4_jbd2.h b/fs/ext4/ext4_jbd2.h index d0f53538a57..bb85757689b 100644 --- a/fs/ext4/ext4_jbd2.h +++ b/fs/ext4/ext4_jbd2.h @@ -126,9 +126,6 @@ void ext4_journal_abort_handle(const char *caller, unsigned int line, const char *err_fn, struct buffer_head *bh, handle_t *handle, int err); -int __ext4_journal_get_undo_access(const char *where, unsigned int line, - handle_t *handle, struct buffer_head *bh); - int __ext4_journal_get_write_access(const char *where, unsigned int line, handle_t *handle, struct buffer_head *bh); @@ -146,8 +143,6 @@ int __ext4_handle_dirty_metadata(const char *where, unsigned int line, int __ext4_handle_dirty_super(const char *where, unsigned int line, handle_t *handle, struct super_block *sb); -#define ext4_journal_get_undo_access(handle, bh) \ - __ext4_journal_get_undo_access(__func__, __LINE__, (handle), (bh)) #define ext4_journal_get_write_access(handle, bh) \ __ext4_journal_get_write_access(__func__, __LINE__, (handle), (bh)) #define ext4_forget(handle, is_metadata, inode, bh, block_nr) \ -- cgit v1.2.3-18-g5258