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| author | Dave Hansen <haveblue@us.ibm.com> | 2008-02-15 14:37:49 -0800 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2008-04-19 00:25:34 -0400 |
| commit | 9079b1eb1753f217c3de9f1b7dd7fd549cc3f0cf (patch) | |
| tree | 8e522ad0b16829849e4b1602270eb10997fba41d /fs/namei.c | |
| parent | 75c3f29de7451677c59580b0a959f694f36aac28 (diff) | |
| download | lwn-9079b1eb1753f217c3de9f1b7dd7fd549cc3f0cf.tar.gz lwn-9079b1eb1753f217c3de9f1b7dd7fd549cc3f0cf.zip | |
[PATCH] r/o bind mounts: get write access for vfs_rename() callers
This also uses the little helper in the NFS code to make an if() a little bit
less ugly. We introduced the helper at the beginning of the series.
Acked-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Hansen <haveblue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/namei.c')
| -rw-r--r-- | fs/namei.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/namei.c b/fs/namei.c index 00df735fb509..83c843b3fea3 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -2718,8 +2718,12 @@ static int do_rename(int olddfd, const char *oldname, if (new_dentry == trap) goto exit5; + error = mnt_want_write(oldnd.path.mnt); + if (error) + goto exit5; error = vfs_rename(old_dir->d_inode, old_dentry, new_dir->d_inode, new_dentry); + mnt_drop_write(oldnd.path.mnt); exit5: dput(new_dentry); exit4: |