Signed-off-by: Dave Hansen <haveblue@xxxxxxxxxx>
---
lxc-dave/fs/namei.c | 14 ++++++++++----
1 files changed, 10 insertions(+), 4 deletions(-)
diff -puN fs/namei.c~elevate-writers-vfs_link-part1 fs/namei.c
--- lxc/fs/namei.c~elevate-writers-vfs_link-part1 2006-06-07 16:53:19.000000000 -0700
+++ lxc-dave/fs/namei.c 2006-06-07 16:53:19.000000000 -0700
@@ -2285,10 +2285,16 @@ asmlinkage long sys_linkat(int olddfd, c
goto out_release;
new_dentry = lookup_create(&nd, 0);
error = PTR_ERR(new_dentry);
- if (!IS_ERR(new_dentry)) {
- error = vfs_link(old_nd.dentry, nd.dentry->d_inode, new_dentry);
- dput(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);
out_release:
path_release(&nd);
_
-
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