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fs/9p: mkdir fix for setting S_ISGID bit as per parent directory 

The current implementation of 9p client mkdir function does not
set the S_ISGID mode bit for the directory being created if the
parent directory has this bit set. This patch fixes this problem
so that the newly created directory inherits the gid from parent
directory and not from the process creating this directory, when
the S_ISGID bit is set in parent directory.

Signed-off-by: Harsh Prateek Bora <harsh@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
This commit is contained in:
Harsh Prateek Bora 2010-08-18 06:01:52 +00:00 committed by Eric Van Hensbergen
parent 8812a3d5f8
commit 7c7298cffc
1 changed files with 2 additions and 0 deletions
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2
fs/9p/vfs_inode.c
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@ -876,6 +876,8 @@ static int v9fs_vfs_mkdir_dotl(struct inode *dir, struct dentry *dentry,
v9ses = v9fs_inode2v9ses(dir);
mode |= S_IFDIR;
if (dir->i_mode & S_ISGID)
mode |= S_ISGID;
dir_dentry = v9fs_dentry_from_dir_inode(dir);
dfid = v9fs_fid_lookup(dir_dentry);
if (IS_ERR(dfid)) {