From: OGAWA Hirofumi Date: Thu, 6 Nov 2008 20:53:52 +0000 (-0800) Subject: fat: Kill d_invalidate() in vfat_lookup() X-Git-Tag: v2.6.28-rc4~43 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=1c13a243a461dd5b089d29e5d57f260c990e462c;p=linux-2.6-omap-h63xx.git fat: Kill d_invalidate() in vfat_lookup() d_invalidate() for positive dentry doesn't work in some cases (vfsmount, nfsd, and maybe others). shrink_dcache_parent() by d_invalidate() is pointless for vfat usage at all. So, this kills it, and intead of it uses d_move(). To save old behavior, this returns alias simply for directory (don't change pwd, etc..). the directory lookup shouldn't be important for performance. Signed-off-by: OGAWA Hirofumi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/fs/fat/namei_vfat.c b/fs/fat/namei_vfat.c index d585398f9f6..bf326d4356a 100644 --- a/fs/fat/namei_vfat.c +++ b/fs/fat/namei_vfat.c @@ -745,13 +745,12 @@ static struct dentry *vfat_lookup(struct inode *dir, struct dentry *dentry, * * Switch to new one for reason of locality if possible. */ - if (d_invalidate(alias) == 0) - dput(alias); - else { - iput(inode); - unlock_super(sb); - return alias; - } + BUG_ON(d_unhashed(alias)); + if (!S_ISDIR(inode->i_mode)) + d_move(alias, dentry); + iput(inode); + unlock_super(sb); + return alias; } out: unlock_super(sb);