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| author | OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> | 2008-11-06 12:53:52 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-11-06 15:41:21 -0800 |
| commit | 1c13a243a461dd5b089d29e5d57f260c990e462c (patch) | |
| tree | 2d9e6be66c1854cdc172708357d95800ec8e93ed /fs/fat | |
| parent | 1b52467243c7167b3a267ddbcbb14d550f28eb4a (diff) | |
| download | kernel-common-1c13a243a461dd5b089d29e5d57f260c990e462c.tar.gz kernel-common-1c13a243a461dd5b089d29e5d57f260c990e462c.tar.bz2 kernel-common-1c13a243a461dd5b089d29e5d57f260c990e462c.zip | |
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 <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/fat')
| -rw-r--r-- | fs/fat/namei_vfat.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/fs/fat/namei_vfat.c b/fs/fat/namei_vfat.c index d585398f9f6b..bf326d4356a3 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); |