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| author | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2013-06-10 09:17:01 +0900 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2013-06-14 09:04:43 +0900 |
| commit | b3783873cc2214542d3da9a1aa800b20919d5889 (patch) | |
| tree | 7b2e4f8eafd726c9c97bfde832a0178c840815a7 /fs | |
| parent | d7cc950b4c910e4440485be784493880a0d09086 (diff) | |
| download | blackbird-op-linux-b3783873cc2214542d3da9a1aa800b20919d5889.tar.gz blackbird-op-linux-b3783873cc2214542d3da9a1aa800b20919d5889.zip | |
f2fs: avoid freqeunt write_inode calls
If update_inode is called, we don't need to do write_inode.
So, let's use a *dirty* flag for each inode.
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/f2fs/f2fs.h | 1 | ||||
| -rw-r--r-- | fs/f2fs/file.c | 1 | ||||
| -rw-r--r-- | fs/f2fs/inode.c | 4 | ||||
| -rw-r--r-- | fs/f2fs/super.c | 12 |
4 files changed, 18 insertions, 0 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 27edf59ac12c..a05aa65cfc2c 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -856,6 +856,7 @@ static inline int f2fs_clear_bit(unsigned int nr, char *addr) /* used for f2fs_inode_info->flags */ enum { FI_NEW_INODE, /* indicate newly allocated inode */ + FI_DIRTY_INODE, /* indicate inode is dirty or not */ FI_INC_LINK, /* need to increment i_nlink */ FI_ACL_MODE, /* indicate acl mode */ FI_NO_ALLOC, /* should not allocate any blocks */ diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 2f649b848521..fda226ff1849 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -147,6 +147,7 @@ int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) } else { /* if there is no written node page, write its inode page */ while (!sync_node_pages(sbi, inode->i_ino, &wbc)) { + mark_inode_dirty_sync(inode); ret = f2fs_write_inode(inode, NULL); if (ret) goto out; diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c index b44a4c1194ea..2b2d45d19e3e 100644 --- a/fs/f2fs/inode.c +++ b/fs/f2fs/inode.c @@ -192,6 +192,7 @@ void update_inode(struct inode *inode, struct page *node_page) set_cold_node(inode, node_page); set_page_dirty(node_page); + clear_inode_flag(F2FS_I(inode), FI_DIRTY_INODE); } int update_inode_page(struct inode *inode) @@ -217,6 +218,9 @@ int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc) inode->i_ino == F2FS_META_INO(sbi)) return 0; + if (!is_inode_flag_set(F2FS_I(inode), FI_DIRTY_INODE)) + return 0; + if (wbc) f2fs_balance_fs(sbi); diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 4fdcdff45e6a..ba56549bb2f3 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -112,6 +112,17 @@ static int f2fs_drop_inode(struct inode *inode) return generic_drop_inode(inode); } +/* + * f2fs_dirty_inode() is called from __mark_inode_dirty() + * + * We should call set_dirty_inode to write the dirty inode through write_inode. + */ +static void f2fs_dirty_inode(struct inode *inode, int flags) +{ + set_inode_flag(F2FS_I(inode), FI_DIRTY_INODE); + return; +} + static void f2fs_i_callback(struct rcu_head *head) { struct inode *inode = container_of(head, struct inode, i_rcu); @@ -249,6 +260,7 @@ static struct super_operations f2fs_sops = { .drop_inode = f2fs_drop_inode, .destroy_inode = f2fs_destroy_inode, .write_inode = f2fs_write_inode, + .dirty_inode = f2fs_dirty_inode, .show_options = f2fs_show_options, .evict_inode = f2fs_evict_inode, .put_super = f2fs_put_super, |
