From: Dave Hansen <hansendc@xxxxxxxxxx>
elevate mnt writers for callers of vfs_mkdir()
Pretty self-explanatory. Fits in with the rest of the series.
Signed-off-by: Dave Hansen <hansendc@xxxxxxxxxx>
---
---
fs/namei.c | 5 +++++
fs/nfsd/nfs4recover.c | 4 ++++
2 files changed, 9 insertions(+)
Index: 2.6.22-rc4-mm2-robindmount/fs/namei.c
===================================================================
--- 2.6.22-rc4-mm2-robindmount.orig/fs/namei.c
+++ 2.6.22-rc4-mm2-robindmount/fs/namei.c
@@ -2023,7 +2023,12 @@ 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);
Index: 2.6.22-rc4-mm2-robindmount/fs/nfsd/nfs4recover.c
===================================================================
--- 2.6.22-rc4-mm2-robindmount.orig/fs/nfsd/nfs4recover.c
+++ 2.6.22-rc4-mm2-robindmount/fs/nfsd/nfs4recover.c
@@ -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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