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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2010-09-28 00:27:39 +0530
committerEric Van Hensbergen <ericvh@gmail.com>2010-10-28 09:08:46 -0500
commit85ff872d3f4a62d076d698bd1fa15ca2a4d7c100 (patch)
tree16d74f328ccb0b81470b1fbc4cad1b37e4df7ab8 /fs/9p/xattr.c
parent8e44a0805fc9d77475060280136aa491aa7d7060 (diff)
downloadop-kernel-dev-85ff872d3f4a62d076d698bd1fa15ca2a4d7c100.zip
op-kernel-dev-85ff872d3f4a62d076d698bd1fa15ca2a4d7c100.tar.gz
fs/9p: Implement POSIX ACL permission checking function
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>
Diffstat (limited to 'fs/9p/xattr.c')
-rw-r--r--fs/9p/xattr.c48
1 files changed, 28 insertions, 20 deletions
diff --git a/fs/9p/xattr.c b/fs/9p/xattr.c
index f88e5c2..67ac6cf 100644
--- a/fs/9p/xattr.c
+++ b/fs/9p/xattr.c
@@ -21,30 +21,13 @@
#include "fid.h"
#include "xattr.h"
-/*
- * v9fs_xattr_get()
- *
- * Copy an extended attribute into the buffer
- * provided, or compute the buffer size required.
- * Buffer is NULL to compute the size of the buffer required.
- *
- * Returns a negative error number on failure, or the number of bytes
- * used / required on success.
- */
-ssize_t v9fs_xattr_get(struct dentry *dentry, const char *name,
- void *buffer, size_t buffer_size)
+ssize_t v9fs_fid_xattr_get(struct p9_fid *fid, const char *name,
+ void *buffer, size_t buffer_size)
{
ssize_t retval;
int msize, read_count;
u64 offset = 0, attr_size;
- struct p9_fid *fid, *attr_fid;
-
- P9_DPRINTK(P9_DEBUG_VFS, "%s: name = %s value_len = %zu\n",
- __func__, name, buffer_size);
-
- fid = v9fs_fid_lookup(dentry);
- if (IS_ERR(fid))
- return PTR_ERR(fid);
+ struct p9_fid *attr_fid;
attr_fid = p9_client_xattrwalk(fid, name, &attr_size);
if (IS_ERR(attr_fid)) {
@@ -88,6 +71,31 @@ error:
}
+
+/*
+ * v9fs_xattr_get()
+ *
+ * Copy an extended attribute into the buffer
+ * provided, or compute the buffer size required.
+ * Buffer is NULL to compute the size of the buffer required.
+ *
+ * Returns a negative error number on failure, or the number of bytes
+ * used / required on success.
+ */
+ssize_t v9fs_xattr_get(struct dentry *dentry, const char *name,
+ void *buffer, size_t buffer_size)
+{
+ struct p9_fid *fid;
+
+ P9_DPRINTK(P9_DEBUG_VFS, "%s: name = %s value_len = %zu\n",
+ __func__, name, buffer_size);
+ fid = v9fs_fid_lookup(dentry);
+ if (IS_ERR(fid))
+ return PTR_ERR(fid);
+
+ return v9fs_fid_xattr_get(fid, name, buffer, buffer_size);
+}
+
/*
* v9fs_xattr_set()
*
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