If same data is updated multiple times, we don't need to redo whole the
operations.
Let's just update the lastest one.
Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
---
fs/f2fs/f2fs.h | 4 +++-
fs/f2fs/recovery.c | 41 +++++++++++++++++------------------------
2 files changed, 20 insertions(+), 25 deletions(-)
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 48d7d46..74dde99 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -137,7 +137,9 @@ struct discard_entry {
struct fsync_inode_entry {
struct list_head list; /* list head */
struct inode *inode; /* vfs inode pointer */
- block_t blkaddr; /* block address locating the last inode */
+ block_t blkaddr; /* block address locating the last fsync */
+ block_t last_dentry; /* block address locating the last dentry */
+ block_t last_inode; /* block address locating the last inode */
};
#define nats_in_cursum(sum) (le16_to_cpu(sum->n_nats))
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index 6f7fbfa..95d9dc9 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -66,7 +66,7 @@ static struct fsync_inode_entry *get_fsync_inode(struct list_head *head,
return NULL;
}
-static int recover_dentry(struct page *ipage, struct inode *inode)
+static int recover_dentry(struct inode *inode, struct page *ipage)
{
struct f2fs_inode *raw_inode = F2FS_INODE(ipage);
nid_t pino = le32_to_cpu(raw_inode->i_pino);
@@ -140,7 +140,7 @@ out:
return err;
}
-static void __recover_inode(struct inode *inode, struct page *page)
+static void recover_inode(struct inode *inode, struct page *page)
{
struct f2fs_inode *raw = F2FS_INODE(page);
@@ -152,21 +152,9 @@ static void __recover_inode(struct inode *inode, struct page *page)
inode->i_atime.tv_nsec = le32_to_cpu(raw->i_mtime_nsec);
inode->i_ctime.tv_nsec = le32_to_cpu(raw->i_ctime_nsec);
inode->i_mtime.tv_nsec = le32_to_cpu(raw->i_mtime_nsec);
-}
-
-static int recover_inode(struct inode *inode, struct page *node_page)
-{
- if (!IS_INODE(node_page))
- return 0;
-
- __recover_inode(inode, node_page);
-
- if (is_dent_dnode(node_page))
- return recover_dentry(node_page, inode);
f2fs_msg(inode->i_sb, KERN_NOTICE, "recover_inode: ino = %x, name = %s",
- ino_of_node(node_page), F2FS_INODE(node_page)->i_name);
- return 0;
+ ino_of_node(page), F2FS_INODE(page)->i_name);
}
static int find_fsync_dnodes(struct f2fs_sb_info *sbi, struct list_head *head)
@@ -214,12 +202,11 @@ static int find_fsync_dnodes(struct f2fs_sb_info *sbi, struct list_head *head)
}
/* add this fsync inode to the list */
- entry = kmem_cache_alloc(fsync_entry_slab, GFP_NOFS);
+ entry = kmem_cache_alloc(fsync_entry_slab, GFP_F2FS_ZERO);
if (!entry) {
err = -ENOMEM;
break;
}
-
/*
* CP | dnode(F) | inode(DF)
* For this case, we should not give up now.
@@ -236,9 +223,11 @@ static int find_fsync_dnodes(struct f2fs_sb_info *sbi, struct list_head *head)
}
entry->blkaddr = blkaddr;
- err = recover_inode(entry->inode, page);
- if (err && err != -ENOENT)
- break;
+ if (IS_INODE(page)) {
+ entry->last_inode = blkaddr;
+ if (is_dent_dnode(page))
+ entry->last_dentry = blkaddr;
+ }
next:
/* check next segment */
blkaddr = next_blkaddr_of_node(page);
@@ -455,11 +444,15 @@ static int recover_data(struct f2fs_sb_info *sbi,
/*
* inode(x) | CP | inode(x) | dnode(F)
* In this case, we can lose the latest inode(x).
- * So, call __recover_inode for the inode update.
+ * So, call recover_inode for the inode update.
*/
- if (IS_INODE(page))
- __recover_inode(entry->inode, page);
-
+ if (entry->last_inode == blkaddr)
+ recover_inode(entry->inode, page);
+ if (entry->last_dentry == blkaddr) {
+ err = recover_dentry(entry->inode, page);
+ if (err)
+ break;
+ }
err = do_recover_data(sbi, entry->inode, page, blkaddr);
if (err)
break;
--
1.8.5.2 (Apple Git-48)
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