fat: drop negative dentry on rename() path

Drop the negative dentry on rename() path, in order to make sure to
use the case sensitive name which is specified by user if this is for
creation.

For it, this uses newly added LOOKUP_RENAME_TARGET like LOOKUP_CREATE.

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>

diff --git a/fs/fat/namei_vfat.c b/fs/fat/namei_vfat.c
index bf326d4356a3347ff9a143328cbef11c01792213..8ae32e37673c32fbee31e0a89eec705fbacf8267 100644 (file)
--- a/fs/fat/namei_vfat.c
+++ b/fs/fat/namei_vfat.c
@@ -78,7 +78,7 @@ static int vfat_revalidate_ci(struct dentry *dentry, struct nameidata *nd)
         * for creation.
         */
        if (!(nd->flags & (LOOKUP_CONTINUE | LOOKUP_PARENT))) {
-               if (nd->flags & LOOKUP_CREATE)
+               if (nd->flags & (LOOKUP_CREATE | LOOKUP_RENAME_TARGET))
                        return 0;
        }