From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ian Kent Subject: [PATCH 02/10] autofs4 - use macros for expiring list Date: Thu, 01 Oct 2009 09:01:02 +0800 Message-ID: <20091001010102.7675.55471.stgit@zeus.themaw.net> References: <20091001010054.7675.77673.stgit@zeus.themaw.net> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Cc: Kernel Mailing List , autofs mailing list , linux-fsdevel , Sage Weil , Al Viro , Andreas Dilger , Christoph Hellwig , Yehuda Saheh To: Andrew Morton Return-path: Received: from outbound.icp-qv1-irony-out5.iinet.net.au ([203.59.1.105]:53952 "EHLO outbound.icp-qv1-irony-out5.iinet.net.au" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755340AbZJABBL (ORCPT ); Wed, 30 Sep 2009 21:01:11 -0400 In-Reply-To: <20091001010054.7675.77673.stgit@zeus.themaw.net> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: Define some simple macro functions for adding and deleting entries on the expiring dentry list. Signed-off-by: Ian Kent --- fs/autofs4/autofs_i.h | 26 ++++++++++++++++++++++++++ fs/autofs4/root.c | 15 +++------------ 2 files changed, 29 insertions(+), 12 deletions(-) diff --git a/fs/autofs4/autofs_i.h b/fs/autofs4/autofs_i.h index f3cf151..fe9fc23 100644 --- a/fs/autofs4/autofs_i.h +++ b/fs/autofs4/autofs_i.h @@ -266,5 +266,31 @@ out: return ret; } +static inline void autofs4_add_expiring(struct dentry *dentry) +{ + struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb); + struct autofs_info *ino = autofs4_dentry_ino(dentry); + if (ino) { + spin_lock(&sbi->lookup_lock); + if (list_empty(&ino->expiring)) + list_add(&ino->expiring, &sbi->expiring_list); + spin_unlock(&sbi->lookup_lock); + } + return; +} + +static inline void autofs4_del_expiring(struct dentry *dentry) +{ + struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb); + struct autofs_info *ino = autofs4_dentry_ino(dentry); + if (ino) { + spin_lock(&sbi->lookup_lock); + if (!list_empty(&ino->expiring)) + list_del_init(&ino->expiring); + spin_unlock(&sbi->lookup_lock); + } + return; +} + void autofs4_dentry_release(struct dentry *); extern void autofs4_kill_sb(struct super_block *); diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c index 67d8d96..2954ac5 100644 --- a/fs/autofs4/root.c +++ b/fs/autofs4/root.c @@ -563,10 +563,7 @@ static struct dentry *autofs4_lookup(struct inode *dir, struct dentry *dentry, s */ ino = autofs4_dentry_ino(expiring); autofs4_expire_wait(expiring); - spin_lock(&sbi->lookup_lock); - if (!list_empty(&ino->expiring)) - list_del_init(&ino->expiring); - spin_unlock(&sbi->lookup_lock); + autofs4_del_expiring(expiring); dput(expiring); } @@ -732,10 +729,7 @@ static int autofs4_dir_unlink(struct inode *dir, struct dentry *dentry) dir->i_mtime = CURRENT_TIME; spin_lock(&dcache_lock); - spin_lock(&sbi->lookup_lock); - if (list_empty(&ino->expiring)) - list_add(&ino->expiring, &sbi->expiring_list); - spin_unlock(&sbi->lookup_lock); + autofs4_add_expiring(dentry); spin_lock(&dentry->d_lock); __d_drop(dentry); spin_unlock(&dentry->d_lock); @@ -761,10 +755,7 @@ static int autofs4_dir_rmdir(struct inode *dir, struct dentry *dentry) spin_unlock(&dcache_lock); return -ENOTEMPTY; } - spin_lock(&sbi->lookup_lock); - if (list_empty(&ino->expiring)) - list_add(&ino->expiring, &sbi->expiring_list); - spin_unlock(&sbi->lookup_lock); + autofs4_add_expiring(dentry); spin_lock(&dentry->d_lock); __d_drop(dentry); spin_unlock(&dentry->d_lock);