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authorMartin Brandenburg <martin@omnibond.com>2016-02-09 01:01:29 +0300
committerMartin Brandenburg <martin@omnibond.com>2016-08-02 22:38:21 +0300
commit31b7c1ab4ed14d3aeb658e11a114860a64290fea (patch)
tree3a5a9575a51456d414d70ec800df567544c55aea /fs/orangefs
parentf7b32e4c021fd788f13f6785e17efbc3eb05b351 (diff)
downloadlinux-31b7c1ab4ed14d3aeb658e11a114860a64290fea.tar.xz
orangefs: Use d_time to avoid excessive lookups
Signed-off-by: Martin Brandenburg <martin@omnibond.com>
Diffstat (limited to 'fs/orangefs')
-rw-r--r--fs/orangefs/dcache.c4
-rw-r--r--fs/orangefs/namei.c5
2 files changed, 9 insertions, 0 deletions
diff --git a/fs/orangefs/dcache.c b/fs/orangefs/dcache.c
index 5dfc4f3cfe68..dcb55bbb0b69 100644
--- a/fs/orangefs/dcache.c
+++ b/fs/orangefs/dcache.c
@@ -73,6 +73,7 @@ static int orangefs_revalidate_lookup(struct dentry *dentry)
}
}
+ dentry->d_time = jiffies + HZ;
ret = 1;
out_release_op:
op_release(new_op);
@@ -94,6 +95,9 @@ static int orangefs_d_revalidate(struct dentry *dentry, unsigned int flags)
{
int ret;
+ if (dentry->d_time > jiffies)
+ return 1;
+
if (flags & LOOKUP_RCU)
return -ECHILD;
diff --git a/fs/orangefs/namei.c b/fs/orangefs/namei.c
index 7e8dfa97c44a..b37f80bf0bec 100644
--- a/fs/orangefs/namei.c
+++ b/fs/orangefs/namei.c
@@ -72,6 +72,7 @@ static int orangefs_create(struct inode *dir,
d_instantiate(dentry, inode);
unlock_new_inode(inode);
+ dentry->d_time = jiffies + HZ;
gossip_debug(GOSSIP_NAME_DEBUG,
"%s: dentry instantiated for %s\n",
@@ -181,6 +182,8 @@ static struct dentry *orangefs_lookup(struct inode *dir, struct dentry *dentry,
goto out;
}
+ dentry->d_time = jiffies + HZ;
+
inode = orangefs_iget(dir->i_sb, &new_op->downcall.resp.lookup.refn);
if (IS_ERR(inode)) {
gossip_debug(GOSSIP_NAME_DEBUG,
@@ -316,6 +319,7 @@ static int orangefs_symlink(struct inode *dir,
d_instantiate(dentry, inode);
unlock_new_inode(inode);
+ dentry->d_time = jiffies + HZ;
gossip_debug(GOSSIP_NAME_DEBUG,
"Inode (Symlink) %pU -> %s\n",
@@ -378,6 +382,7 @@ static int orangefs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode
d_instantiate(dentry, inode);
unlock_new_inode(inode);
+ dentry->d_time = jiffies + HZ;
gossip_debug(GOSSIP_NAME_DEBUG,
"Inode (Directory) %pU -> %s\n",