2009-08-16 19:13:11

by Eric Sandeen

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Subject: [PATCH] ext4: open-code ext4_mb_update_group_info

ext4_mb_update_group_info is only called in one place, and it's
extremely simple. There's no reason to have it in a separate
function in a separate file as far as I can tell, it just
obfuscates what's really going on.

Perhaps it was intended to keep the grp->bb_* manipulation
local to mballoc.c but we're already accessing other grp->
fields in balloc.c directly so this seems ok.

Signed-off-by: Eric Sandeen <[email protected]>
---

balloc.c | 2 +-
ext4.h | 2 --
mballoc.c | 9 ---------
3 files changed, 1 insertion(+), 12 deletions(-)

diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index e2126d7..1d04189 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -478,7 +478,7 @@ void ext4_add_groupblocks(handle_t *handle, struct super_block *sb,
* new bitmap information
*/
set_bit(EXT4_GROUP_INFO_NEED_INIT_BIT, &(grp->bb_state));
- ext4_mb_update_group_info(grp, blocks_freed);
+ grp->bb_free += blocks_freed;
up_write(&grp->alloc_sem);

/* We dirtied the bitmap block */
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 9714db3..80cd0f7 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -1340,8 +1340,6 @@ extern void ext4_mb_free_blocks(handle_t *, struct inode *,
ext4_fsblk_t, unsigned long, int, unsigned long *);
extern int ext4_mb_add_groupinfo(struct super_block *sb,
ext4_group_t i, struct ext4_group_desc *desc);
-extern void ext4_mb_update_group_info(struct ext4_group_info *grp,
- ext4_grpblk_t add);
extern int ext4_mb_get_buddy_cache_lock(struct super_block *, ext4_group_t);
extern void ext4_mb_put_buddy_cache_lock(struct super_block *,
ext4_group_t, int);
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index cd25846..2741b11 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -2558,15 +2558,6 @@ exit_meta_group_info:
return -ENOMEM;
} /* ext4_mb_add_groupinfo */

-/*
- * Update an existing group.
- * This function is used for online resize
- */
-void ext4_mb_update_group_info(struct ext4_group_info *grp, ext4_grpblk_t add)
-{
- grp->bb_free += add;
-}


2009-08-18 04:31:01

by Theodore Ts'o

[permalink] [raw]
Subject: Re: [PATCH] ext4: open-code ext4_mb_update_group_info

Thanks, added to the ext4 patch queue

- Ted