[PATCH] f2fs: clean up redundant function call

From: Jaegeuk Kim
Date: Fri Feb 07 2014 - 00:46:55 EST


This patch integrates inode_[inc|dec]_dirty_dents with inc_page_count to remove
redundant calls.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@xxxxxxxxxxx>
---
fs/f2fs/checkpoint.c | 1 -
fs/f2fs/data.c | 11 ++---------
fs/f2fs/dir.c | 4 ++--
fs/f2fs/f2fs.h | 5 +++++
fs/f2fs/gc.c | 7 +------
5 files changed, 10 insertions(+), 18 deletions(-)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 8f5dff1..427dd55 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -508,7 +508,6 @@ void set_dirty_dir_page(struct inode *inode, struct page *page)
if (__add_dirty_inode(inode, new))
kmem_cache_free(inode_entry_slab, new);

- inc_page_count(sbi, F2FS_DIRTY_DENTS);
inode_inc_dirty_dents(inode);
SetPagePrivate(page);
spin_unlock(&sbi->dir_inode_lock);
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index d175ae3..b401be7 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -799,10 +799,7 @@ static int f2fs_write_data_page(struct page *page,
*/
offset = i_size & (PAGE_CACHE_SIZE - 1);
if ((page->index >= end_index + 1) || !offset) {
- if (S_ISDIR(inode->i_mode)) {
- dec_page_count(sbi, F2FS_DIRTY_DENTS);
- inode_dec_dirty_dents(inode);
- }
+ inode_dec_dirty_dents(inode);
goto out;
}

@@ -815,7 +812,6 @@ write:

/* Dentry blocks are controlled by checkpoint */
if (S_ISDIR(inode->i_mode)) {
- dec_page_count(sbi, F2FS_DIRTY_DENTS);
inode_dec_dirty_dents(inode);
err = do_write_data_page(page, &fio);
} else {
@@ -1033,11 +1029,8 @@ static void f2fs_invalidate_data_page(struct page *page, unsigned int offset,
unsigned int length)
{
struct inode *inode = page->mapping->host;
- struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
- if (S_ISDIR(inode->i_mode) && PageDirty(page)) {
- dec_page_count(sbi, F2FS_DIRTY_DENTS);
+ if (PageDirty(page))
inode_dec_dirty_dents(inode);
- }
ClearPagePrivate(page);
}

diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index 92ce1db..e095a4f 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -531,7 +531,6 @@ void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
unsigned int bit_pos;
struct address_space *mapping = page->mapping;
struct inode *dir = mapping->host;
- struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb);
int slots = GET_DENTRY_SLOTS(le16_to_cpu(dentry->name_len));
void *kaddr = page_address(page);
int i;
@@ -554,6 +553,8 @@ void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
dir->i_ctime = dir->i_mtime = CURRENT_TIME;

if (inode) {
+ struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb);
+
if (S_ISDIR(inode->i_mode)) {
drop_nlink(dir);
update_inode_page(dir);
@@ -576,7 +577,6 @@ void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
truncate_hole(dir, page->index, page->index + 1);
clear_page_dirty_for_io(page);
ClearPageUptodate(page);
- dec_page_count(sbi, F2FS_DIRTY_DENTS);
inode_dec_dirty_dents(dir);
}
f2fs_put_page(page, 1);
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index aeff132..4841d12 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -662,6 +662,7 @@ static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)

static inline void inode_inc_dirty_dents(struct inode *inode)
{
+ inc_page_count(F2FS_SB(inode->i_sb), F2FS_DIRTY_DENTS);
atomic_inc(&F2FS_I(inode)->dirty_dents);
}

@@ -672,6 +673,10 @@ static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)

static inline void inode_dec_dirty_dents(struct inode *inode)
{
+ if (!S_ISDIR(inode->i_mode))
+ return;
+
+ dec_page_count(F2FS_SB(inode->i_sb), F2FS_DIRTY_DENTS);
atomic_dec(&F2FS_I(inode)->dirty_dents);
}

diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index b0f5762..b161db4 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -531,15 +531,10 @@ static void move_data_page(struct inode *inode, struct page *page, int gc_type)
set_page_dirty(page);
set_cold_data(page);
} else {
- struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
-
f2fs_wait_on_page_writeback(page, DATA);

- if (clear_page_dirty_for_io(page) &&
- S_ISDIR(inode->i_mode)) {
- dec_page_count(sbi, F2FS_DIRTY_DENTS);
+ if (clear_page_dirty_for_io(page))
inode_dec_dirty_dents(inode);
- }
set_cold_data(page);
do_write_data_page(page, &fio);
clear_cold_data(page);
--
1.8.4.474.g128a96c

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