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rxrpc: Only set/transmit aborts in the I/O thread

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Only set the abort call completion state in the I/O thread and only
transmit ABORT packets from there.  rxrpc_abort_call() can then be made to
actually send the packet.

Further, ABORT packets should only be sent if the call has been exposed to
the network (ie. at least one attempted DATA transmission has occurred for
it).

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
This commit is contained in:
David Howells
2022-10-12 22:17:56 +01:00
parent 30df927b93
commit a343b174b4
7 changed files with 50 additions and 18 deletions
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7
net/rxrpc/ar-internal.h
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@@ -625,7 +625,10 @@ struct rxrpc_call {
unsigned long events;
spinlock_t notify_lock; /* Kernel notification lock */
rwlock_t state_lock; /* lock for state transition */
u32 abort_code; /* Local/remote abort code */
const char *send_abort_why; /* String indicating why the abort was sent */
s32 send_abort; /* Abort code to be sent */
short send_abort_err; /* Error to be associated with the abort */
s32 abort_code; /* Local/remote abort code */
int error; /* Local error incurred */
enum rxrpc_call_state state; /* current state of call */
enum rxrpc_call_completion completion; /* Call completion condition */
@@ -1146,6 +1149,8 @@ struct key *rxrpc_look_up_server_security(struct rxrpc_connection *,
/*
* sendmsg.c
*/
bool rxrpc_propose_abort(struct rxrpc_call *call,
u32 abort_code, int error, const char *why);
int rxrpc_do_sendmsg(struct rxrpc_sock *, struct msghdr *, size_t);
/*