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authorNick Piggin <npiggin@kernel.dk>2011-01-07 01:49:43 -0500
committerNick Piggin <npiggin@kernel.dk>2011-01-07 01:50:24 -0500
commitdc0474be3e27463d4d4a2793f82366eed906f223 (patch)
tree41f75e638442cb343bacdcfbabb17ffc3bd5b4ce /fs/configfs/inode.c
parent357f8e658bba8a085c4a5d4331e30894be8096b8 (diff)
fs: dcache rationalise dget variants
dget_locked was a shortcut to avoid the lazy lru manipulation when we already held dcache_lock (lru manipulation was relatively cheap at that point). However, how that the lru lock is an innermost one, we never hold it at any caller, so the lock cost can now be avoided. We already have well working lazy dcache LRU, so it should be fine to defer LRU manipulations to scan time. Signed-off-by: Nick Piggin <npiggin@kernel.dk>
Diffstat (limited to 'fs/configfs/inode.c')
-rw-r--r--fs/configfs/inode.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/configfs/inode.c b/fs/configfs/inode.c
index fb3a55fff82..c83f4768eea 100644
--- a/fs/configfs/inode.c
+++ b/fs/configfs/inode.c
@@ -252,7 +252,7 @@ void configfs_drop_dentry(struct configfs_dirent * sd, struct dentry * parent)
252 if (dentry) { 252 if (dentry) {
253 spin_lock(&dentry->d_lock); 253 spin_lock(&dentry->d_lock);
254 if (!(d_unhashed(dentry) && dentry->d_inode)) { 254 if (!(d_unhashed(dentry) && dentry->d_inode)) {
255 dget_locked_dlock(dentry); 255 dget_dlock(dentry);
256 __d_drop(dentry); 256 __d_drop(dentry);
257 spin_unlock(&dentry->d_lock); 257 spin_unlock(&dentry->d_lock);
258 simple_unlink(parent->d_inode, dentry); 258 simple_unlink(parent->d_inode, dentry);