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| author | Nick Piggin <npiggin@kernel.dk> | 2011-01-07 17:49:43 +1100 |
|---|---|---|
| committer | Nick Piggin <npiggin@kernel.dk> | 2011-01-07 17:50:24 +1100 |
| commit | dc0474be3e27463d4d4a2793f82366eed906f223 (patch) | |
| tree | 41f75e638442cb343bacdcfbabb17ffc3bd5b4ce /drivers/infiniband/hw | |
| parent | 357f8e658bba8a085c4a5d4331e30894be8096b8 (diff) | |
| download | lwn-dc0474be3e27463d4d4a2793f82366eed906f223.tar.gz lwn-dc0474be3e27463d4d4a2793f82366eed906f223.zip | |
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')
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_fs.c | 2 | ||||
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_fs.c | 2 |
2 files changed, 2 insertions, 2 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) spin_lock(&tmp->d_lock); if (!(d_unhashed(tmp) && tmp->d_inode)) { - dget_locked_dlock(tmp); + dget_dlock(tmp); __d_drop(tmp); spin_unlock(&tmp->d_lock); simple_unlink(parent->d_inode, tmp); diff --git a/drivers/infiniband/hw/qib/qib_fs.c b/drivers/infiniband/hw/qib/qib_fs.c index 49af4a6538ba..df7fa251dcdc 100644 --- a/drivers/infiniband/hw/qib/qib_fs.c +++ b/drivers/infiniband/hw/qib/qib_fs.c @@ -455,7 +455,7 @@ static int remove_file(struct dentry *parent, char *name) spin_lock(&tmp->d_lock); if (!(d_unhashed(tmp) && tmp->d_inode)) { - dget_locked_dlock(tmp); + dget_dlock(tmp); __d_drop(tmp); spin_unlock(&tmp->d_lock); simple_unlink(parent->d_inode, tmp); |