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Diffstat (limited to 'fs/btrfs/inode.c')
-rw-r--r--fs/btrfs/inode.c37
1 files changed, 24 insertions, 13 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index d3df5b52278c..9ea4c6f0352f 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -1531,12 +1531,11 @@ out_check:
}
btrfs_release_path(path);
- if (cur_offset <= end && cow_start == (u64)-1) {
+ if (cur_offset <= end && cow_start == (u64)-1)
cow_start = cur_offset;
- cur_offset = end;
- }
if (cow_start != (u64)-1) {
+ cur_offset = end;
ret = cow_file_range(inode, locked_page, cow_start, end, end,
page_started, nr_written, 1, NULL);
if (ret)
@@ -3570,10 +3569,11 @@ static noinline int acls_after_inode_item(struct extent_buffer *leaf,
/*
* read an inode from the btree into the in-memory inode
*/
-static int btrfs_read_locked_inode(struct inode *inode)
+static int btrfs_read_locked_inode(struct inode *inode,
+ struct btrfs_path *in_path)
{
struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
- struct btrfs_path *path;
+ struct btrfs_path *path = in_path;
struct extent_buffer *leaf;
struct btrfs_inode_item *inode_item;
struct btrfs_root *root = BTRFS_I(inode)->root;
@@ -3589,15 +3589,18 @@ static int btrfs_read_locked_inode(struct inode *inode)
if (!ret)
filled = true;
- path = btrfs_alloc_path();
- if (!path)
- return -ENOMEM;
+ if (!path) {
+ path = btrfs_alloc_path();
+ if (!path)
+ return -ENOMEM;
+ }
memcpy(&location, &BTRFS_I(inode)->location, sizeof(location));
ret = btrfs_lookup_inode(NULL, root, path, &location, 0);
if (ret) {
- btrfs_free_path(path);
+ if (path != in_path)
+ btrfs_free_path(path);
return ret;
}
@@ -3722,7 +3725,8 @@ cache_acl:
btrfs_ino(BTRFS_I(inode)),
root->root_key.objectid, ret);
}
- btrfs_free_path(path);
+ if (path != in_path)
+ btrfs_free_path(path);
if (!maybe_acls)
cache_no_acl(inode);
@@ -5644,8 +5648,9 @@ static struct inode *btrfs_iget_locked(struct super_block *s,
/* Get an inode object given its location and corresponding root.
* Returns in *is_new if the inode was read from disk
*/
-struct inode *btrfs_iget(struct super_block *s, struct btrfs_key *location,
- struct btrfs_root *root, int *new)
+struct inode *btrfs_iget_path(struct super_block *s, struct btrfs_key *location,
+ struct btrfs_root *root, int *new,
+ struct btrfs_path *path)
{
struct inode *inode;
@@ -5656,7 +5661,7 @@ struct inode *btrfs_iget(struct super_block *s, struct btrfs_key *location,
if (inode->i_state & I_NEW) {
int ret;
- ret = btrfs_read_locked_inode(inode);
+ ret = btrfs_read_locked_inode(inode, path);
if (!ret) {
inode_tree_add(inode);
unlock_new_inode(inode);
@@ -5678,6 +5683,12 @@ struct inode *btrfs_iget(struct super_block *s, struct btrfs_key *location,
return inode;
}
+struct inode *btrfs_iget(struct super_block *s, struct btrfs_key *location,
+ struct btrfs_root *root, int *new)
+{
+ return btrfs_iget_path(s, location, root, new, NULL);
+}
+
static struct inode *new_simple_dir(struct super_block *s,
struct btrfs_key *key,
struct btrfs_root *root)