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RxRPC rewrite

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Merge tag 'rxrpc-rewrite-20161013' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs

David Howells says:

====================
rxrpc: Fixes

This set of patches contains a bunch of fixes:

 (1) Fix use of kunmap() after change from kunmap_atomic() within AFS.

 (2) Don't use of ERR_PTR() with an always zero value.

 (3) Check the right error when using ip6_route_output().

 (4) Be consistent about whether call->operation_ID is BE or CPU-E within
     AFS.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2016-10-14 10:44:45 -04:00
parent f56f7d2e1c 50a2c95381
commit f1f081cef0
6 changed files with 10 additions and 11 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
fs/afs/cmservice.c
View file

@ -91,11 +91,9 @@ static const struct afs_call_type afs_SRXCBTellMeAboutYourself = {
*/
bool afs_cm_incoming_call(struct afs_call *call)
{
u32 operation_id = ntohl(call->operation_ID);
_enter("{CB.OP %u}", call->operation_ID);
_enter("{CB.OP %u}", operation_id);
switch (operation_id) {
switch (call->operation_ID) {
case CBCallBack:
call->type = &afs_SRXCBCallBack;
return true;

4
fs/afs/fsclient.c
View file

@ -364,7 +364,7 @@ static int afs_deliver_fs_fetch_data(struct afs_call *call)
buffer = kmap(page);
ret = afs_extract_data(call, buffer,
call->count, true);
kunmap(buffer);
kunmap(page);
if (ret < 0)
return ret;
}
@ -397,7 +397,7 @@ static int afs_deliver_fs_fetch_data(struct afs_call *call)
page = call->reply3;
buffer = kmap(page);
memset(buffer + call->count, 0, PAGE_SIZE - call->count);
kunmap(buffer);
kunmap(page);
}
_leave(" = 0 [done]");

2
fs/afs/internal.h
View file

@ -112,7 +112,7 @@ struct afs_call {
bool need_attention; /* T if RxRPC poked us */
u16 service_id; /* RxRPC service ID to call */
__be16 port; /* target UDP port */
__be32 operation_ID; /* operation ID for an incoming call */
u32 operation_ID; /* operation ID for an incoming call */
u32 count; /* count for use in unmarshalling */
__be32 tmp; /* place to extract temporary data */
afs_dataversion_t store_version; /* updated version expected from store */

3
fs/afs/rxrpc.c
View file

@ -676,10 +676,11 @@ static int afs_deliver_cm_op_id(struct afs_call *call)
ASSERTCMP(call->offset, <, 4);
/* the operation ID forms the first four bytes of the request data */
ret = afs_extract_data(call, &call->operation_ID, 4, true);
ret = afs_extract_data(call, &call->tmp, 4, true);
if (ret < 0)
return ret;
call->operation_ID = ntohl(call->tmp);
call->state = AFS_CALL_AWAIT_REQUEST;
call->offset = 0;

2
net/rxrpc/call_object.c
View file

@ -276,7 +276,7 @@ struct rxrpc_call *rxrpc_new_client_call(struct rxrpc_sock *rx,
goto error;
trace_rxrpc_call(call, rxrpc_call_connected, atomic_read(&call->usage),
here, ERR_PTR(ret));
here, NULL);
spin_lock_bh(&call->conn->params.peer->lock);
hlist_add_head(&call->error_link,

4
net/rxrpc/peer_object.c
View file

@ -193,8 +193,8 @@ static void rxrpc_assess_MTU_size(struct rxrpc_peer *peer)
fl6->fl6_dport = htons(7001);
fl6->fl6_sport = htons(7000);
dst = ip6_route_output(&init_net, NULL, fl6);
if (IS_ERR(dst)) {
_leave(" [route err %ld]", PTR_ERR(dst));
if (dst->error) {
_leave(" [route err %d]", dst->error);
return;
}
break;