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fs/9p: Implement POSIX ACL permission checking function

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The ACL value is fetched as a part of inode initialization
from the server and the permission checking function use the
cached value of the ACL

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
This commit is contained in:
Aneesh Kumar K.V
2010-09-28 00:27:39 +05:30
committed by Eric Van Hensbergen
parent 8e44a0805f
commit 85ff872d3f
8 changed files with 186 additions and 22 deletions
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9
fs/9p/vfs_super.c
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@ -46,6 +46,7 @@
#include "v9fs_vfs.h"
#include "fid.h"
#include "xattr.h"
#include "acl.h"
static const struct super_operations v9fs_super_ops, v9fs_super_ops_dotl;
@ -88,6 +89,10 @@ v9fs_fill_super(struct super_block *sb, struct v9fs_session_info *v9ses,
sb->s_flags = flags | MS_ACTIVE | MS_SYNCHRONOUS | MS_DIRSYNC |
MS_NOATIME;
#ifdef CONFIG_9P_FS_POSIX_ACL
sb->s_flags |= MS_POSIXACL;
#endif
save_mount_options(sb, data);
}
@ -149,7 +154,6 @@ static int v9fs_get_sb(struct file_system_type *fs_type, int flags,
goto release_sb;
}
sb->s_root = root;
if (v9fs_proto_dotl(v9ses)) {
struct p9_stat_dotl *st = NULL;
st = p9_client_getattr_dotl(fid, P9_STATS_BASIC);
@ -174,6 +178,9 @@ static int v9fs_get_sb(struct file_system_type *fs_type, int flags,
p9stat_free(st);
kfree(st);
}
retval = v9fs_get_acl(inode, fid);
if (retval)
goto release_sb;
v9fs_fid_add(root, fid);