hostfs: fix a duplicated global function name

fs/hostfs/hostfs_user.c defines do_readlink() as non-static, and so does
fs/xfs/linux-2.6/xfs_ioctl.c when CONFIG_XFS_DEBUG=y.  So rename
do_readlink() in hostfs to hostfs_do_readlink().

I think it's better if XFS guys will also rename their do_readlink(),
it's not necessary to use such a general name.

Signed-off-by: WANG Cong <wangcong@zeuux.org>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

3 files changed, 4 insertions, 4 deletions

diff --git a/fs/hostfs/hostfs.h b/fs/hostfs/hostfs.h
index 6ae9011b95eb..2f34f8f2134b 100644
--- a/fs/hostfs/hostfs.h
+++ b/fs/hostfs/hostfs.h
@@ -81,7 +81,7 @@ extern int do_rmdir(const char *file);
 extern int do_mknod(const char *file, int mode, unsigned int major,
                     unsigned int minor);
 extern int link_file(const char *from, const char *to);
-extern int do_readlink(char *file, char *buf, int size);
+extern int hostfs_do_readlink(char *file, char *buf, int size);
 extern int rename_file(char *from, char *to);
 extern int do_statfs(char *root, long *bsize_out, long long *blocks_out,
                      long long *bfree_out, long long *bavail_out,
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index 7f34f4385de0..3a31451ac170 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -168,7 +168,7 @@ static char *follow_link(char *link)
                 if (name == NULL)
                         goto out;
 
-                n = do_readlink(link, name, len);
+                n = hostfs_do_readlink(link, name, len);
                 if (n < len)
                         break;
                 len *= 2;
@@ -943,7 +943,7 @@ int hostfs_link_readpage(struct file *file, struct page *page)
         name = inode_name(page->mapping->host, 0);
         if (name == NULL)
                 return -ENOMEM;
-        err = do_readlink(name, buffer, PAGE_CACHE_SIZE);
+        err = hostfs_do_readlink(name, buffer, PAGE_CACHE_SIZE);
         kfree(name);
         if (err == PAGE_CACHE_SIZE)
                 err = -E2BIG;
diff --git a/fs/hostfs/hostfs_user.c b/fs/hostfs/hostfs_user.c
index 53fd0a67c11a..b79424f93282 100644
--- a/fs/hostfs/hostfs_user.c
+++ b/fs/hostfs/hostfs_user.c
@@ -377,7 +377,7 @@ int link_file(const char *to, const char *from)
         return 0;
 }
 
-int do_readlink(char *file, char *buf, int size)
+int hostfs_do_readlink(char *file, char *buf, int size)
 {
         int n;