[XFS] Don't validate symlink target component length

This target component validation is not POSIX conformant and it is not
done by any other Linux filesystem so remove it from XFS.

SGI-PV: 980080
SGI-Modid: xfs-linux-melb:xfs-kern:30776a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>

1 files changed, 0 insertions, 25 deletions

diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c
index 3418c94bcf17..d46f24c68498 100644
--- a/fs/xfs/xfs_vnodeops.c
+++ b/fs/xfs/xfs_vnodeops.c
@@ -3105,31 +3105,6 @@ xfs_symlink(
         pathlen = strlen(target_path);
         if (pathlen >= MAXPATHLEN)      /* total string too long */
                 return XFS_ERROR(ENAMETOOLONG);
-        if (pathlen >= MAXNAMELEN) {    /* is any component too long? */
-                int len, total;
-                char *path;
-
-                for (total = 0, path = target_path; total < pathlen;) {
-                        /*
-                         * Skip any slashes.
-                         */
-                        while(*path == '/') {
-                                total++;
-                                path++;
-                        }
-
-                        /*
-                         * Count up to the next slash or end of path.
-                         * Error out if the component is bigger than MAXNAMELEN.
-                         */
-                        for(len = 0; *path != '/' && total < pathlen;total++, path++) {
-                                if (++len >= MAXNAMELEN) {
-                                        error = ENAMETOOLONG;
-                                        return error;
-                                }
-                        }
-                }
-        }
 
         if (DM_EVENT_ENABLED(dp, DM_EVENT_SYMLINK)) {
                 error = XFS_SEND_NAMESP(mp, DM_EVENT_SYMLINK, dp,