From: Miklos Szeredi <[email protected]> We need to be able to check inode permissions (but not filesystem implied permissions) for stackable filesystems. Expose this interface for overlayfs.
Signed-off-by: Miklos Szeredi <[email protected]> --- fs/internal.h | 1 - fs/namei.c | 1 + include/linux/fs.h | 1 + 3 files changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/internal.h b/fs/internal.h index 873cdf544d54..dd41b12c13f1 100644 --- a/fs/internal.h +++ b/fs/internal.h @@ -42,7 +42,6 @@ extern void __init chrdev_init(void); /* * namei.c */ -extern int __inode_permission(struct inode *, int); extern int user_path_mountpoint_at(int, const char __user *, unsigned int, struct path *); extern int vfs_path_lookup(struct dentry *, struct vfsmount *, const char *, unsigned int, struct path *); diff --git a/fs/namei.c b/fs/namei.c index a7cf0fb1f638..fe615561c90e 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -414,6 +414,7 @@ int __inode_permission(struct inode *inode, int mask) return security_inode_permission(inode, mask); } +EXPORT_SYMBOL(__inode_permission); /** * sb_permission - Check superblock-level permissions diff --git a/include/linux/fs.h b/include/linux/fs.h index 90463dfd77d1..0ca904f5cd1c 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2233,6 +2233,7 @@ extern sector_t bmap(struct inode *, sector_t); #endif extern int notify_change(struct dentry *, struct iattr *, struct inode **); extern int inode_permission(struct inode *, int); +extern int __inode_permission(struct inode *, int); extern int generic_permission(struct inode *, int); static inline bool execute_ok(struct inode *inode) -- 1.8.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
