[PATCH 02/23] fs: add a vfs_fchmod helper
From: Christoph Hellwig <hch@lst.de>
Date: 2020-07-14 19:11:09
Also in:
linux-fsdevel, lkml
Subsystem:
filesystems (vfs and infrastructure), the rest · Maintainers:
Alexander Viro, Christian Brauner, Linus Torvalds
Add a helper for struct file based chmode operations. To be used by the initramfs code soon. Signed-off-by: Christoph Hellwig <hch@lst.de> --- fs/open.c | 9 +++++++-- include/linux/fs.h | 1 + 2 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/fs/open.c b/fs/open.c
index 103c66309bee67..75166f071d280a 100644
--- a/fs/open.c
+++ b/fs/open.c@@ -602,14 +602,19 @@ static int chmod_common(const struct path *path, umode_t mode) return error; } +int vfs_fchmod(struct file *file, umode_t mode) +{ + audit_file(file); + return chmod_common(&file->f_path, mode); +} + int ksys_fchmod(unsigned int fd, umode_t mode) { struct fd f = fdget(fd); int err = -EBADF; if (f.file) { - audit_file(f.file); - err = chmod_common(&f.file->f_path, mode); + err = vfs_fchmod(f.file, mode); fdput(f); } return err;
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 0ddd64ca0b45c0..635086726f2053 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h@@ -1745,6 +1745,7 @@ int vfs_mkobj(struct dentry *, umode_t, void *); int vfs_fchown(struct file *file, uid_t user, gid_t group); +int vfs_fchmod(struct file *file, umode_t mode); extern long vfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
--
2.27.0