[PATCH 2/4] f2fs: avoid unnecessary f2fs_gc for dir operations

Jaegeuk Kim
2015-12-23T01:00:55Z

The f2fs_balance_fs doesn't need to cover f2fs_new_inode or f2fs_find_entry
works.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
fs/f2fs/namei.c | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index 2c32110..8d2616f 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -128,8 +128,6 @@ static int f2fs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
nid_t ino = 0;
int err;

- f2fs_balance_fs(sbi);
-
inode = f2fs_new_inode(dir, mode);
if (IS_ERR(inode))
return PTR_ERR(inode);
@@ -142,6 +140,8 @@ static int f2fs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
inode->i_mapping->a_ops = &f2fs_dblock_aops;
ino = inode->i_ino;

+ f2fs_balance_fs(sbi);
+
f2fs_lock_op(sbi);
err = f2fs_add_link(dentry, inode);
if (err)
@@ -288,12 +288,13 @@ static int f2fs_unlink(struct inode *dir, struct dentry *dentry)
int err = -ENOENT;

trace_f2fs_unlink_enter(dir, dentry);
- f2fs_balance_fs(sbi);

de = f2fs_find_entry(dir, &dentry->d_name, &page);
if (!de)
goto fail;

+ f2fs_balance_fs(sbi);
+
f2fs_lock_op(sbi);
err = acquire_orphan_inode(sbi);
if (err) {
@@ -341,8 +342,6 @@ static int f2fs_symlink(struct inode *dir, struct dentry *dentry,
if (len > dir->i_sb->s_blocksize)
return -ENAMETOOLONG;

- f2fs_balance_fs(sbi);
-
inode = f2fs_new_inode(dir, S_IFLNK | S_IRWXUGO);
if (IS_ERR(inode))
return PTR_ERR(inode);
@@ -353,6 +352,8 @@ static int f2fs_symlink(struct inode *dir, struct dentry *dentry,
inode->i_op = &f2fs_symlink_inode_operations;
inode->i_mapping->a_ops = &f2fs_dblock_aops;

+ f2fs_balance_fs(sbi);
+
f2fs_lock_op(sbi);
err = f2fs_add_link(dentry, inode);
if (err)
@@ -433,8 +434,6 @@ static int f2fs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
struct inode *inode;
int err;

- f2fs_balance_fs(sbi);
-
inode = f2fs_new_inode(dir, S_IFDIR | mode);
if (IS_ERR(inode))
return PTR_ERR(inode);
@@ -444,6 +443,8 @@ static int f2fs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
inode->i_mapping->a_ops = &f2fs_dblock_aops;
mapping_set_gfp_mask(inode->i_mapping, GFP_F2FS_HIGH_ZERO);

+ f2fs_balance_fs(sbi);
+
set_inode_flag(F2FS_I(inode), FI_INC_LINK);
f2fs_lock_op(sbi);
err = f2fs_add_link(dentry, inode);
--
2.5.4 (Apple Git-61)