Attachment 6058 Details for Bug 7792 – patch -- make sure cifs_get_tlink is done under spinlock

[patch] patch -- make sure cifs_get_tlink is done under spinlock

0001-cifs-perform-cifs_get_tlink-under-a-spinlock-in-cifs.patch (text/plain), 1.06 KB, created by Jeff Layton on 2010-11-11 07:40:24 UTC

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Creator: Jeff Layton

Created: 2010-11-11 07:40:24 UTC

Size: 1.06 KB

patch

obsolete

>From e51c119955c495c4df73323c08a5e578c421693e Mon Sep 17 00:00:00 2001
>From: Jeff Layton <jlayton@redhat.com>
>Date: Thu, 11 Nov 2010 08:36:56 -0500
>Subject: [PATCH] cifs: perform cifs_get_tlink under a spinlock in cifs_sb_tlink
>
>Signed-off-by: Jeff Layton <jlayton@redhat.com>
>---
> fs/cifs/connect.c |    9 ++++++---
> 1 files changed, 6 insertions(+), 3 deletions(-)
>
>diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
>index 251a17c..64f63ce 100644
>--- a/fs/cifs/connect.c
>+++ b/fs/cifs/connect.c
>@@ -3340,10 +3340,13 @@ cifs_sb_tlink(struct cifs_sb_info *cifs_sb)
> 	uid_t fsuid = current_fsuid();
> 	struct tcon_link *tlink, *newtlink;
> 
>-	if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MULTIUSER))
>-		return cifs_get_tlink(cifs_sb_master_tlink(cifs_sb));
>-
> 	spin_lock(&cifs_sb->tlink_tree_lock);
>+	if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MULTIUSER)) {
>+		tlink = cifs_get_tlink(cifs_sb_master_tlink(cifs_sb));
>+		spin_unlock(&cifs_sb->tlink_tree_lock);
>+		return tlink;
>+	}
>+
> 	tlink = tlink_rb_search(&cifs_sb->tlink_tree, fsuid);
> 	if (tlink)
> 		cifs_get_tlink(tlink);
>-- 
>1.7.2.3
>

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Attachments on bug 7792: 6058 | 6059 | 6060 | 6061 | 6063 | 6064