linux/net/9p
Aneesh Kumar K.V eda25e4616 net/9p: Implement TXATTRCREATE 9p call
TXATTRCREATE:  Prepare a fid for setting xattr value on a file system object.

 size[4] TXATTRCREATE tag[2] fid[4] name[s] attr_size[8] flags[4]
 size[4] RXATTRCREATE tag[2]

txattrcreate gets a fid pointing to xattr. This fid can later be
used to set the xattr value.

flag value is derived from set Linux setxattr. The manpage says
"The flags parameter can be used to refine the semantics of the operation.
XATTR_CREATE specifies a pure create, which fails if the named attribute
exists already. XATTR_REPLACE specifies a pure replace operation, which
fails if the named attribute does not already exist. By default (no flags),
the extended attribute will be created if need be, or will simply replace
the value if the attribute exists."

The actual setxattr operation happens when the fid is clunked. At that point
the written byte count and the attr_size specified in TXATTRCREATE should be
same otherwise an error will be returned.

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>
2010-08-02 14:28:34 -05:00
..
client.c net/9p: Implement TXATTRCREATE 9p call 2010-08-02 14:28:34 -05:00
error.c net/9p: insulate the client against an invalid error code sent by a 9p server 2009-08-17 16:39:54 -05:00
Kconfig 9p: disallow RDMA if RDMA CM isn't available 2009-01-15 16:39:42 -08:00
Makefile 9p: rdma: RDMA Transport Support for 9P 2008-10-22 18:47:39 -05:00
mod.c 9p: consolidate transport structure 2008-10-17 11:04:41 -05:00
protocol.c 9p: Implement client side of setattr for 9P2000.L protocol. 2010-08-02 14:25:10 -05:00
protocol.h 9P2010.L handshake: Remove "dotu" variable 2010-03-05 15:04:42 -06:00
trans_fd.c 9p: strlen() doesn't count the terminator 2010-08-02 10:37:17 -05:00
trans_rdma.c net: Remove unnecessary returns from void function()s 2010-05-17 23:23:14 -07:00
trans_virtio.c trans_virtio: use virtqueue_xxx wrappers 2010-05-19 22:15:45 +09:30
util.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00