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| author | Christoph Hellwig <hch@infradead.org> | 2013-09-09 07:16:41 -0700 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2013-09-10 18:56:29 -0400 |
| commit | aac34df11791d25417f7d756dc277b6f95996b47 (patch) | |
| tree | 0a0becb7fdff62056c065b9223058f0285fd5bf5 | |
| parent | b05430fc9341fea7a6228a3611c850a476809596 (diff) | |
| download | linux-rpi-aac34df11791d25417f7d756dc277b6f95996b47.tar.gz linux-rpi-aac34df11791d25417f7d756dc277b6f95996b47.tar.bz2 linux-rpi-aac34df11791d25417f7d756dc277b6f95996b47.zip | |
fs: remove vfs_follow_link
For a long time no filesystem has been using vfs_follow_link, and as seen
by recent filesystem submissions any new use is accidental as well.
Remove vfs_follow_link, document the replacement in
Documentation/filesystems/porting and also rename __vfs_follow_link
to match its only caller better.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| -rw-r--r-- | Documentation/filesystems/porting | 4 | ||||
| -rw-r--r-- | fs/namei.c | 10 | ||||
| -rw-r--r-- | include/linux/fs.h | 1 |
3 files changed, 6 insertions, 9 deletions
diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting index 206a1bdc7321..f0890581f7f6 100644 --- a/Documentation/filesystems/porting +++ b/Documentation/filesystems/porting @@ -451,3 +451,7 @@ in your dentry operations instead. -- [mandatory] ->readdir() is gone now; switch to ->iterate() +[mandatory] + vfs_follow_link has been removed. Filesystems must use nd_set_link + from ->follow_link for normal symlinks, or nd_jump_link for magic + /proc/<pid> style links. diff --git a/fs/namei.c b/fs/namei.c index 409a441ba2ae..b0b2cf25075b 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -660,7 +660,7 @@ static __always_inline void set_root_rcu(struct nameidata *nd) } } -static __always_inline int __vfs_follow_link(struct nameidata *nd, const char *link) +static __always_inline int __follow_link(struct nameidata *nd, const char *link) { int ret; @@ -874,7 +874,7 @@ follow_link(struct path *link, struct nameidata *nd, void **p) error = 0; s = nd_get_link(nd); if (s) { - error = __vfs_follow_link(nd, s); + error = __follow_link(nd, s); if (unlikely(error)) put_link(nd, link, *p); } @@ -4236,11 +4236,6 @@ int generic_readlink(struct dentry *dentry, char __user *buffer, int buflen) return res; } -int vfs_follow_link(struct nameidata *nd, const char *link) -{ - return __vfs_follow_link(nd, link); -} - /* get the link contents into pagecache */ static char *page_getlink(struct dentry * dentry, struct page **ppage) { @@ -4352,7 +4347,6 @@ EXPORT_SYMBOL(vfs_path_lookup); EXPORT_SYMBOL(inode_permission); EXPORT_SYMBOL(unlock_rename); EXPORT_SYMBOL(vfs_create); -EXPORT_SYMBOL(vfs_follow_link); EXPORT_SYMBOL(vfs_link); EXPORT_SYMBOL(vfs_mkdir); EXPORT_SYMBOL(vfs_mknod); diff --git a/include/linux/fs.h b/include/linux/fs.h index 529d8711baba..49e71b0f0e9f 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2494,7 +2494,6 @@ extern const struct file_operations generic_ro_fops; #define special_file(m) (S_ISCHR(m)||S_ISBLK(m)||S_ISFIFO(m)||S_ISSOCK(m)) extern int vfs_readlink(struct dentry *, char __user *, int, const char *); -extern int vfs_follow_link(struct nameidata *, const char *); extern int page_readlink(struct dentry *, char __user *, int); extern void *page_follow_link_light(struct dentry *, struct nameidata *); extern void page_put_link(struct dentry *, struct nameidata *, void *); |