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authorChao Yu <chao2.yu@samsung.com>2015-10-22 18:23:08 +0800
committerJaegeuk Kim <jaegeuk@kernel.org>2015-10-22 09:39:24 -0700
commita6be014e1d28339ba7c745fc4ac1efdbf6e2c1a2 (patch)
tree5283cabac5f40449b10e102838a5b8b3f85ab379 /fs/f2fs/namei.c
parent7fee740697e0d9a57d618b6fec79e4c4e09fd606 (diff)
downloadop-kernel-dev-a6be014e1d28339ba7c745fc4ac1efdbf6e2c1a2.zip
op-kernel-dev-a6be014e1d28339ba7c745fc4ac1efdbf6e2c1a2.tar.gz
f2fs: fix error path of ->symlink
Now, in ->symlink of f2fs, we kept the fixed invoking order between f2fs_add_link and page_symlink since we should init node info firstly in f2fs_add_link, then such node info can be used in page_symlink. But we didn't fix to release meta info which was done before page_symlink in our error path, so this will leave us corrupt symlink entry in its parent's dentry page. Fix this issue by adding f2fs_unlink in the error path for removing such linking. Signed-off-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/namei.c')
-rw-r--r--fs/f2fs/namei.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index dfa01c8..e48b80c 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -410,11 +410,14 @@ err_out:
* If the symlink path is stored into inline_data, there is no
* performance regression.
*/
- if (!err)
+ if (!err) {
filemap_write_and_wait_range(inode->i_mapping, 0, p_len - 1);
- if (IS_DIRSYNC(dir))
- f2fs_sync_fs(sbi->sb, 1);
+ if (IS_DIRSYNC(dir))
+ f2fs_sync_fs(sbi->sb, 1);
+ } else {
+ f2fs_unlink(dir, dentry);
+ }
kfree(sd);
f2fs_fname_crypto_free_buffer(&disk_link);
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