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Diffstat (limited to 'fs/ext4/namei.c')
-rw-r--r--fs/ext4/namei.c47
1 files changed, 36 insertions, 11 deletions
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 07e39985dc9f..2c8055454262 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -3374,6 +3374,31 @@ static int ext4_setent(handle_t *handle, struct ext4_renament *ent,
return 0;
}
+static void ext4_resetent(handle_t *handle, struct ext4_renament *ent,
+ unsigned ino, unsigned file_type)
+{
+ struct ext4_renament old = *ent;
+ int retval = 0;
+
+ /*
+ * old->de could have moved from under us during make indexed dir,
+ * so the old->de may no longer valid and need to find it again
+ * before reset old inode info.
+ */
+ old.bh = ext4_find_entry(old.dir, &old.dentry->d_name, &old.de, NULL);
+ if (IS_ERR(old.bh))
+ retval = PTR_ERR(old.bh);
+ if (!old.bh)
+ retval = -ENOENT;
+ if (retval) {
+ ext4_std_error(old.dir->i_sb, retval);
+ return;
+ }
+
+ ext4_setent(handle, &old, ino, file_type);
+ brelse(old.bh);
+}
+
static int ext4_find_delete_entry(handle_t *handle, struct inode *dir,
const struct qstr *d_name)
{
@@ -3528,7 +3553,7 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
*/
retval = -ENOENT;
if (!old.bh || le32_to_cpu(old.de->inode) != old.inode->i_ino)
- goto end_rename;
+ goto release_bh;
if ((old.dir != new.dir) &&
ext4_encrypted_inode(new.dir) &&
@@ -3543,7 +3568,7 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
if (IS_ERR(new.bh)) {
retval = PTR_ERR(new.bh);
new.bh = NULL;
- goto end_rename;
+ goto release_bh;
}
if (new.bh) {
if (!new.inode) {
@@ -3560,15 +3585,13 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
handle = ext4_journal_start(old.dir, EXT4_HT_DIR, credits);
if (IS_ERR(handle)) {
retval = PTR_ERR(handle);
- handle = NULL;
- goto end_rename;
+ goto release_bh;
}
} else {
whiteout = ext4_whiteout_for_rename(&old, credits, &handle);
if (IS_ERR(whiteout)) {
retval = PTR_ERR(whiteout);
- whiteout = NULL;
- goto end_rename;
+ goto release_bh;
}
}
@@ -3673,19 +3696,21 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
end_rename:
if (whiteout) {
if (retval) {
- ext4_setent(handle, &old,
- old.inode->i_ino, old_file_type);
+ ext4_resetent(handle, &old,
+ old.inode->i_ino, old_file_type);
drop_nlink(whiteout);
+ ext4_orphan_add(handle, whiteout);
}
unlock_new_inode(whiteout);
+ ext4_journal_stop(handle);
iput(whiteout);
-
+ } else {
+ ext4_journal_stop(handle);
}
+release_bh:
brelse(old.dir_bh);
brelse(old.bh);
brelse(new.bh);
- if (handle)
- ext4_journal_stop(handle);
return retval;
}