[PATCH 09/24] elevate mnt writers for callers of vfs_mkdir()

[Dave Hansen]

Pretty self-explanatory.  Fits in with the rest of the series.

Signed-off-by: Dave Hansen <[EMAIL PROTECTED]>
---

 lxc-dave/fs/namei.c            |    5 +++++
 lxc-dave/fs/nfsd/nfs4recover.c |    4 ++++
 2 files changed, 9 insertions(+)

diff -puN fs/namei.c~elevate-mnt-writers-for-callers-of-vfs-mkdir fs/namei.c
--- lxc/fs/namei.c~elevate-mnt-writers-for-callers-of-vfs-mkdir 2007-09-17 
09:44:01.000000000 -0700
+++ lxc-dave/fs/namei.c 2007-09-17 09:44:01.000000000 -0700
@@ -2051,7 +2051,12 @@ asmlinkage long sys_mkdirat(int dfd, con
 
        if (!IS_POSIXACL(nd.dentry->d_inode))
                mode &= ~current->fs->umask;
+       error = mnt_want_write(nd.mnt);
+       if (error)
+               goto out_dput;
        error = vfs_mkdir(nd.dentry->d_inode, dentry, mode);
+       mnt_drop_write(nd.mnt);
+out_dput:
        dput(dentry);
 out_unlock:
        mutex_unlock(&nd.dentry->d_inode->i_mutex);
diff -puN fs/nfsd/nfs4recover.c~elevate-mnt-writers-for-callers-of-vfs-mkdir 
fs/nfsd/nfs4recover.c
--- lxc/fs/nfsd/nfs4recover.c~elevate-mnt-writers-for-callers-of-vfs-mkdir      
2007-09-17 09:44:01.000000000 -0700
+++ lxc-dave/fs/nfsd/nfs4recover.c      2007-09-17 09:44:01.000000000 -0700
@@ -156,7 +156,11 @@ nfsd4_create_clid_dir(struct nfs4_client
                dprintk("NFSD: nfsd4_create_clid_dir: DIRECTORY EXISTS\n");
                goto out_put;
        }
+       status = mnt_want_write(rec_dir.mnt);
+       if (status)
+               goto out_put;
        status = vfs_mkdir(rec_dir.dentry->d_inode, dentry, S_IRWXU);
+       mnt_drop_write(rec_dir.mnt);
 out_put:
        dput(dentry);
 out_unlock:
_
-
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