[PATCH 14/28] sys_symlinkat() elevate write count around vfs_symlink()

[Dave Hansen <haveblue@us.ibm.com>]

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_symlink-part3 fs/namei.c
--- lxc/fs/namei.c~C-elevate-writers-vfs_symlink-part3	2006-08-01 16:35:23.000000000 -0700
+++ lxc-dave/fs/namei.c	2006-08-01 16:35:24.000000000 -0700
@@ -2226,7 +2226,12 @@ asmlinkage long sys_symlinkat(const char
 	if (IS_ERR(dentry))
 		goto out_unlock;
 
+	error = mnt_want_write(nd.mnt);
+	if (error)
+		goto out_dput;
 	error = vfs_symlink(nd.dentry->d_inode, dentry, from, S_IALLUGO);
+	mnt_drop_write(nd.mnt);
+out_dput:
 	dput(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/