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authorLinus Torvalds <torvalds@linux-foundation.org>2012-05-10 13:14:12 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-10 19:54:35 -0700
commit26fe575028703948880fce4355a210c76bb0536e (patch)
tree0a7d04289e1eb1f1739659ebc9498d40f2add5da /fs/ufs
parentee983e89670704b2a05e897b161f2674a42d1508 (diff)
downloadvexpress-lsk-26fe575028703948880fce4355a210c76bb0536e.tar.gz
vfs: make it possible to access the dentry hash/len as one 64-bit entry
This allows comparing hash and len in one operation on 64-bit architectures. Right now only __d_lookup_rcu() takes advantage of this, since that is the case we care most about. The use of anonymous struct/unions hides the alternate 64-bit approach from most users, the exception being a few cases where we initialize a 'struct qstr' with a static initializer. This makes the problematic cases use a new QSTR_INIT() helper function for that (but initializing just the name pointer with a "{ .name = xyzzy }" initializer remains valid, as does just copying another qstr structure). Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ufs')
-rw-r--r--fs/ufs/super.c5
1 files changed, 1 insertions, 4 deletions
diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index ac8e279eccc..302f340d007 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -146,10 +146,7 @@ static struct dentry *ufs_fh_to_parent(struct super_block *sb, struct fid *fid,
static struct dentry *ufs_get_parent(struct dentry *child)
{
- struct qstr dot_dot = {
- .name = "..",
- .len = 2,
- };
+ struct qstr dot_dot = QSTR_INIT("..", 2);
ino_t ino;
ino = ufs_inode_by_name(child->d_inode, &dot_dot);