[PATCH 6.6 528/638] f2fs: fix to create selinux label during whiteout initialization

Sasha Levin
2024-03-24T23:10:00Z

From: Chao Yu <chao@kernel.org>

[ Upstream commit 40b2d55e045222dd6de2a54a299f682e0f954b03 ]

#generic/700 - output mismatch (see /media/fstests/results//generic/700.out.bad)
# --- tests/generic/700.out 2023-03-28 10:40:42.735529223 +0000
# +++ /media/fstests/results//generic/700.out.bad 2024-02-06 04:37:56.000000000 +0000
# @@ -1,2 +1,4 @@
# QA output created by 700
# +/mnt/scratch_f2fs/f1: security.selinux: No such attribute
# +/mnt/scratch_f2fs/f2: security.selinux: No such attribute
# Silence is golden
# ...
# (Run 'diff -u /media/fstests/tests/generic/700.out /media/fstests/results//generic/700.out.bad' to see the entire diff)

HINT: You _MAY_ be missing kernel fix:
70b589a37e1a xfs: add selinux labels to whiteout inodes

Previously, it missed to create selinux labels during whiteout inode
initialization, fix this issue.

Fixes: 7e01e7ad746b ("f2fs: support RENAME_WHITEOUT")
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/f2fs/dir.c | 5 +++--
fs/f2fs/f2fs.h | 3 ++-
fs/f2fs/namei.c | 25 +++++++++++++++++--------
3 files changed, 22 insertions(+), 11 deletions(-)

diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index 8aa29fe2e87b8..e792d35304796 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -830,13 +830,14 @@ int f2fs_do_add_link(struct inode *dir, const struct qstr *name,
return err;
}

-int f2fs_do_tmpfile(struct inode *inode, struct inode *dir)
+int f2fs_do_tmpfile(struct inode *inode, struct inode *dir,
+ struct f2fs_filename *fname)
{
struct page *page;
int err = 0;

f2fs_down_write(&F2FS_I(inode)->i_sem);
- page = f2fs_init_inode_metadata(inode, dir, NULL, NULL);
+ page = f2fs_init_inode_metadata(inode, dir, fname, NULL);
if (IS_ERR(page)) {
err = PTR_ERR(page);
goto fail;
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index a518fe31ec9e1..e6c22a392cdb0 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -3569,7 +3569,8 @@ int f2fs_do_add_link(struct inode *dir, const struct qstr *name,
struct inode *inode, nid_t ino, umode_t mode);
void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
struct inode *dir, struct inode *inode);
-int f2fs_do_tmpfile(struct inode *inode, struct inode *dir);
+int f2fs_do_tmpfile(struct inode *inode, struct inode *dir,
+ struct f2fs_filename *fname);
bool f2fs_empty_dir(struct inode *dir);

static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index 02d9c47797be6..7bca22e5dec4f 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -853,7 +853,7 @@ static int f2fs_mknod(struct mnt_idmap *idmap, struct inode *dir,

static int __f2fs_tmpfile(struct mnt_idmap *idmap, struct inode *dir,
struct file *file, umode_t mode, bool is_whiteout,
- struct inode **new_inode)
+ struct inode **new_inode, struct f2fs_filename *fname)
{
struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
struct inode *inode;
@@ -881,7 +881,7 @@ static int __f2fs_tmpfile(struct mnt_idmap *idmap, struct inode *dir,
if (err)
goto out;

- err = f2fs_do_tmpfile(inode, dir);
+ err = f2fs_do_tmpfile(inode, dir, fname);
if (err)
goto release_out;

@@ -932,22 +932,24 @@ static int f2fs_tmpfile(struct mnt_idmap *idmap, struct inode *dir,
if (!f2fs_is_checkpoint_ready(sbi))
return -ENOSPC;

- err = __f2fs_tmpfile(idmap, dir, file, mode, false, NULL);
+ err = __f2fs_tmpfile(idmap, dir, file, mode, false, NULL, NULL);

return finish_open_simple(file, err);
}

static int f2fs_create_whiteout(struct mnt_idmap *idmap,
- struct inode *dir, struct inode **whiteout)
+ struct inode *dir, struct inode **whiteout,
+ struct f2fs_filename *fname)
{
- return __f2fs_tmpfile(idmap, dir, NULL,
- S_IFCHR | WHITEOUT_MODE, true, whiteout);
+ return __f2fs_tmpfile(idmap, dir, NULL, S_IFCHR | WHITEOUT_MODE,
+ true, whiteout, fname);
}

int f2fs_get_tmpfile(struct mnt_idmap *idmap, struct inode *dir,
struct inode **new_inode)
{
- return __f2fs_tmpfile(idmap, dir, NULL, S_IFREG, false, new_inode);
+ return __f2fs_tmpfile(idmap, dir, NULL, S_IFREG,
+ false, new_inode, NULL);
}

static int f2fs_rename(struct mnt_idmap *idmap, struct inode *old_dir,
@@ -990,7 +992,14 @@ static int f2fs_rename(struct mnt_idmap *idmap, struct inode *old_dir,
}

if (flags & RENAME_WHITEOUT) {
- err = f2fs_create_whiteout(idmap, old_dir, &whiteout);
+ struct f2fs_filename fname;
+
+ err = f2fs_setup_filename(old_dir, &old_dentry->d_name,
+ 0, &fname);
+ if (err)
+ return err;
+
+ err = f2fs_create_whiteout(idmap, old_dir, &whiteout, &fname);
if (err)
return err;
}
--
2.43.0