From: David Howells <dhowells@redhat.com>
To: Andrew Morton <akpm@osdl.org>
Cc: David Howells <dhowells@redhat.com>,
torvalds@osdl.org, steved@redhat.com, trond.myklebust@fys.uio.no,
aviro@redhat.com, linux-fsdevel@vger.kernel.org,
linux-cachefs@redhat.com, nfsv4@linux-nfs.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 7/5] Optimise d_find_alias()
Date: Fri, 03 Mar 2006 13:00:10 +0000 [thread overview]
Message-ID: <27600.1141390810@warthog.cambridge.redhat.com> (raw)
In-Reply-To: <20060303034552.5fcedc49.akpm@osdl.org>
Andrew Morton <akpm@osdl.org> wrote:
> How can we get away without a barrier?
Is this what you're thinking of:
struct dentry * d_find_alias(struct inode *inode)
{
struct dentry *de = NULL;
smp_rb();
if (!list_empty(&inode->i_dentry)) {
spin_lock(&dcache_lock);
de = __d_find_alias(inode, 0);
spin_unlock(&dcache_lock);
}
return de;
}
David
next prev parent reply other threads:[~2006-03-03 13:00 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-02 21:33 [PATCH 0/5] Permit NFS superblock sharing [try #3] David Howells
2006-03-02 21:33 ` [PATCH 1/5] NFS: Permit filesystem to override root dentry on mount " David Howells
2006-03-02 21:34 ` [PATCH 2/5] NFS: Apply mount root dentry override to filesystems " David Howells
2006-03-02 21:34 ` [PATCH 3/5] NFS: Abstract out namespace initialisation " David Howells
2006-03-02 21:34 ` [PATCH 4/5] NFS: Add dentry materialisation op " David Howells
2006-03-02 21:34 ` [PATCH 5/5] NFS: Unify NFS superblocks per-protocol per-server " David Howells
2006-03-03 3:22 ` Andrew Morton
2006-03-02 22:07 ` [PATCH 0/5] Permit NFS superblock sharing " Linus Torvalds
2006-03-03 9:59 ` [PATCH 5/5] NFS: Unify NFS superblocks per-protocol per-server [try #3a] David Howells
2006-03-03 10:49 ` [PATCH 6/5] 9p: Fix error handling on superblock alloc failure David Howells
2006-03-03 11:30 ` [PATCH 7/5] Optimise d_find_alias() David Howells
2006-03-03 11:45 ` Andrew Morton
2006-03-03 14:48 ` Matthew Wilcox
2006-03-03 15:46 ` Al Viro
2006-03-03 13:00 ` David Howells [this message]
2006-03-03 15:43 ` Ingo Molnar
2006-03-03 13:01 ` David Howells
2006-03-03 13:38 ` [PATCH 7/5] Optimise d_find_alias() [try #2] David Howells
2006-03-04 12:16 ` [PATCH 0/5] Permit NFS superblock sharing [try #3] Andrew Morton
2006-03-06 11:55 ` David Howells
2006-03-06 13:57 ` Jörn Engel
2006-03-06 15:25 ` Linus Torvalds
2006-03-06 14:03 ` [PATCH 1/5] NFS: Permit filesystem to override root dentry on mount [try #4] David Howells
2006-03-06 14:59 ` [PATCH 1+2/5] NFS: Permit filesystem to override root dentry on mount [try #5] David Howells
2006-03-07 11:08 ` [PATCH] Fix multiple blockdev-based filesystem mounts David Howells
2006-03-07 11:35 ` Alexander Viro
2006-03-07 13:23 ` David Howells
2006-05-23 16:53 ` [PATCH 0/5] Permit NFS superblock sharing [try #3] David Howells
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