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author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2010-09-28 00:27:39 +0530 |
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committer | Eric Van Hensbergen <ericvh@gmail.com> | 2010-10-28 09:08:46 -0500 |
commit | 85ff872d3f4a62d076d698bd1fa15ca2a4d7c100 (patch) | |
tree | 16d74f328ccb0b81470b1fbc4cad1b37e4df7ab8 /fs/9p/xattr.c | |
parent | 8e44a0805fc9d77475060280136aa491aa7d7060 (diff) | |
download | kernel_samsung_aries-85ff872d3f4a62d076d698bd1fa15ca2a4d7c100.zip kernel_samsung_aries-85ff872d3f4a62d076d698bd1fa15ca2a4d7c100.tar.gz kernel_samsung_aries-85ff872d3f4a62d076d698bd1fa15ca2a4d7c100.tar.bz2 |
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.c | 48 |
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() * |