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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 /drivers/infiniband/hw/ipath
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 'drivers/infiniband/hw/ipath')
-rw-r--r--drivers/infiniband/hw/ipath/ipath_fs.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_fs.c b/drivers/infiniband/hw/ipath/ipath_fs.c
index 925e88227ded..31ae1b108aea 100644
--- a/drivers/infiniband/hw/ipath/ipath_fs.c
+++ b/drivers/infiniband/hw/ipath/ipath_fs.c
@@ -279,7 +279,7 @@ static int remove_file(struct dentry *parent, char *name)
279 279
280 spin_lock(&tmp->d_lock); 280 spin_lock(&tmp->d_lock);
281 if (!(d_unhashed(tmp) && tmp->d_inode)) { 281 if (!(d_unhashed(tmp) && tmp->d_inode)) {
282 dget_locked_dlock(tmp); 282 dget_dlock(tmp);
283 __d_drop(tmp); 283 __d_drop(tmp);
284 spin_unlock(&tmp->d_lock); 284 spin_unlock(&tmp->d_lock);
285 simple_unlink(parent->d_inode, tmp); 285 simple_unlink(parent->d_inode, tmp);