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Diffstat (limited to 'fs/btrfs/tree-log.c')
-rw-r--r--fs/btrfs/tree-log.c52
1 files changed, 48 insertions, 4 deletions
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 0d9613c3f5e5..79f057c0619a 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -93,7 +93,8 @@
*/
#define LOG_WALK_PIN_ONLY 0
#define LOG_WALK_REPLAY_INODES 1
-#define LOG_WALK_REPLAY_ALL 2
+#define LOG_WALK_REPLAY_DIR_INDEX 2
+#define LOG_WALK_REPLAY_ALL 3
static int btrfs_log_inode(struct btrfs_trans_handle *trans,
struct btrfs_root *root, struct inode *inode,
@@ -393,6 +394,7 @@ static noinline int overwrite_item(struct btrfs_trans_handle *trans,
if (inode_item) {
struct btrfs_inode_item *item;
u64 nbytes;
+ u32 mode;
item = btrfs_item_ptr(path->nodes[0], path->slots[0],
struct btrfs_inode_item);
@@ -400,9 +402,19 @@ static noinline int overwrite_item(struct btrfs_trans_handle *trans,
item = btrfs_item_ptr(eb, slot,
struct btrfs_inode_item);
btrfs_set_inode_nbytes(eb, item, nbytes);
+
+ /*
+ * If this is a directory we need to reset the i_size to
+ * 0 so that we can set it up properly when replaying
+ * the rest of the items in this log.
+ */
+ mode = btrfs_inode_mode(eb, item);
+ if (S_ISDIR(mode))
+ btrfs_set_inode_size(eb, item, 0);
}
} else if (inode_item) {
struct btrfs_inode_item *item;
+ u32 mode;
/*
* New inode, set nbytes to 0 so that the nbytes comes out
@@ -410,6 +422,15 @@ static noinline int overwrite_item(struct btrfs_trans_handle *trans,
*/
item = btrfs_item_ptr(eb, slot, struct btrfs_inode_item);
btrfs_set_inode_nbytes(eb, item, 0);
+
+ /*
+ * If this is a directory we need to reset the i_size to 0 so
+ * that we can set it up properly when replaying the rest of
+ * the items in this log.
+ */
+ mode = btrfs_inode_mode(eb, item);
+ if (S_ISDIR(mode))
+ btrfs_set_inode_size(eb, item, 0);
}
insert:
btrfs_release_path(path);
@@ -1496,6 +1517,7 @@ static noinline int insert_one_name(struct btrfs_trans_handle *trans,
iput(inode);
return -EIO;
}
+
ret = btrfs_add_link(trans, dir, inode, name, name_len, 1, index);
/* FIXME, put inode into FIXUP list */
@@ -1534,6 +1556,7 @@ static noinline int replay_one_name(struct btrfs_trans_handle *trans,
u8 log_type;
int exists;
int ret = 0;
+ bool update_size = (key->type == BTRFS_DIR_INDEX_KEY);
dir = read_one_inode(root, key->objectid);
if (!dir)
@@ -1604,6 +1627,10 @@ static noinline int replay_one_name(struct btrfs_trans_handle *trans,
goto insert;
out:
btrfs_release_path(path);
+ if (!ret && update_size) {
+ btrfs_i_size_write(dir, dir->i_size + name_len * 2);
+ ret = btrfs_update_inode(trans, root, dir);
+ }
kfree(name);
iput(dir);
return ret;
@@ -1614,6 +1641,7 @@ insert:
name, name_len, log_type, &log_key);
if (ret && ret != -ENOENT)
goto out;
+ update_size = false;
ret = 0;
goto out;
}
@@ -2027,6 +2055,15 @@ static int replay_one_buffer(struct btrfs_root *log, struct extent_buffer *eb,
if (ret)
break;
}
+
+ if (key.type == BTRFS_DIR_INDEX_KEY &&
+ wc->stage == LOG_WALK_REPLAY_DIR_INDEX) {
+ ret = replay_one_dir_item(wc->trans, root, path,
+ eb, i, &key);
+ if (ret)
+ break;
+ }
+
if (wc->stage < LOG_WALK_REPLAY_ALL)
continue;
@@ -2048,8 +2085,7 @@ static int replay_one_buffer(struct btrfs_root *log, struct extent_buffer *eb,
eb, i, &key);
if (ret)
break;
- } else if (key.type == BTRFS_DIR_ITEM_KEY ||
- key.type == BTRFS_DIR_INDEX_KEY) {
+ } else if (key.type == BTRFS_DIR_ITEM_KEY) {
ret = replay_one_dir_item(wc->trans, root, path,
eb, i, &key);
if (ret)
@@ -3805,6 +3841,7 @@ static noinline int check_parent_dirs_for_sync(struct btrfs_trans_handle *trans,
int ret = 0;
struct btrfs_root *root;
struct dentry *old_parent = NULL;
+ struct inode *orig_inode = inode;
/*
* for regular files, if its inode is already on disk, we don't
@@ -3824,7 +3861,14 @@ static noinline int check_parent_dirs_for_sync(struct btrfs_trans_handle *trans,
}
while (1) {
- BTRFS_I(inode)->logged_trans = trans->transid;
+ /*
+ * If we are logging a directory then we start with our inode,
+ * not our parents inode, so we need to skipp setting the
+ * logged_trans so that further down in the log code we don't
+ * think this inode has already been logged.
+ */
+ if (inode != orig_inode)
+ BTRFS_I(inode)->logged_trans = trans->transid;
smp_mb();
if (BTRFS_I(inode)->last_unlink_trans > last_committed) {