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orangefs: Use d_time to avoid excessive lookups

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Signed-off-by: Martin Brandenburg <martin@omnibond.com>
This commit is contained in:
Martin Brandenburg 2016-02-08 17:01:29 -05:00
parent f7b32e4c02
commit 31b7c1ab4e
2 changed files with 9 additions and 0 deletions
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4
fs/orangefs/dcache.c
View file

@ -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;

5
fs/orangefs/namei.c
View file

@ -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",