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authorAmir Goldstein <amir73il@gmail.com>2020-09-29 15:28:47 +0800
committerMiklos Szeredi <mszeredi@redhat.com>2020-10-06 15:38:14 +0200
commit61536bed2149b082748f8a38c593d915ff3e5957 (patch)
tree650bd20e89098381d36658935b3554ccee1b33ee /fs/overlayfs/overlayfs.h
parent8f6ee74c27860d4a4c6e0f8cf772bb2afc184bcb (diff)
ovl: support [S|G]ETFLAGS and FS[S|G]ETXATTR ioctls for directories
[S|G]ETFLAGS and FS[S|G]ETXATTR ioctls are applicable to both files and directories, so add ioctl operations to dir as well. We teach ovl_real_fdget() to get the realfile of directories which use a different type of file->private_data. Ifdef away compat ioctl implementation to conform to standard practice. With this change, xfstest generic/079 which tests these ioctls on files and directories passes. Signed-off-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Xiao Yang <yangx.jy@cn.fujitsu.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs/overlayfs/overlayfs.h')
-rw-r--r--fs/overlayfs/overlayfs.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h
index 7bce2469fe55..f8880aa2ba0e 100644
--- a/fs/overlayfs/overlayfs.h
+++ b/fs/overlayfs/overlayfs.h
@@ -416,6 +416,7 @@ static inline int ovl_verify_upper(struct ovl_fs *ofs, struct dentry *index,
/* readdir.c */
extern const struct file_operations ovl_dir_operations;
+struct file *ovl_dir_real_file(const struct file *file, bool want_upper);
int ovl_check_empty_dir(struct dentry *dentry, struct list_head *list);
void ovl_cleanup_whiteouts(struct dentry *upper, struct list_head *list);
void ovl_cache_free(struct list_head *list);
@@ -503,6 +504,8 @@ struct dentry *ovl_create_temp(struct dentry *workdir, struct ovl_cattr *attr);
extern const struct file_operations ovl_file_operations;
int __init ovl_aio_request_cache_init(void);
void ovl_aio_request_cache_destroy(void);
+long ovl_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
+long ovl_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
/* copy_up.c */
int ovl_copy_up(struct dentry *dentry);