lkml.org 
[lkml]   [2006]   [Jun]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Subject[RFC][PATCH 08/20] sys_linkat(): elevate write count around vfs_link()
From
Date


Signed-off-by: Dave Hansen <haveblue@us.ibm.com>
---
lxc-dave/fs/namei.c | 5 +++++
1 files changed, 5 insertions(+)
diff -puN fs/namei.c~C-elevate-writers-vfs_link-part1 fs/namei.c
--- lxc/fs/namei.c~C-elevate-writers-vfs_link-part1 2006-06-16 15:58:04.000000000 -0700
+++ lxc-dave/fs/namei.c 2006-06-16 15:58:04.000000000 -0700
@@ -2289,7 +2289,12 @@ asmlinkage long sys_linkat(int olddfd, c
error = PTR_ERR(new_dentry);
if (IS_ERR(new_dentry))
goto out_unlock;
+ error = mnt_want_write(nd.mnt);
+ if (error)
+ goto out_dput;
error = vfs_link(old_nd.dentry, nd.dentry->d_inode, new_dentry);
+ mnt_drop_write(nd.mnt);
+out_dput:
dput(new_dentry);
out_unlock:
mutex_unlock(&nd.dentry->d_inode->i_mutex);
_
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
\
 
 \ /
  Last update: 2006-06-17 01:21    [from the cache]
©2003-2011 Jasper Spaans