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| author | David Howells <dhowells@redhat.com> | 2017-01-05 11:38:34 +0100 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2017-01-09 10:18:13 +0100 |
| commit | 8e8d7f13b6d5a93b3d2cf9a4ceaaf923809fd5ac (patch) | |
| tree | 8d5b1fd4da0dfec6cbaea9a846419fb8b7a1ac15 /fs/afs/internal.h | |
| parent | Merge branch 'tc-skb-diet' (diff) | |
| download | linux-8e8d7f13b6d5a93b3d2cf9a4ceaaf923809fd5ac.tar.xz linux-8e8d7f13b6d5a93b3d2cf9a4ceaaf923809fd5ac.zip | |
afs: Add some tracepoints
Add three tracepoints to the AFS filesystem:
(1) The afs_recv_data tracepoint logs data segments that are extracted
from the data received from the peer through afs_extract_data().
(2) The afs_notify_call tracepoint logs notification from AF_RXRPC of data
coming in to an asynchronous call.
(3) The afs_cb_call tracepoint logs incoming calls that have had their
operation ID extracted and mapped into a supported cache manager
service call.
To make (3) work, the name strings in the afs_call_type struct objects have
to be annotated with __tracepoint_string. This is done with the CM_NAME()
macro.
Further, the AFS call state enum needs a name so that it can be used to
declare parameter types.
Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'fs/afs/internal.h')
| -rw-r--r-- | fs/afs/internal.h | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/fs/afs/internal.h b/fs/afs/internal.h index 6f7a9638ba1a..f71e58fcc2f2 100644 --- a/fs/afs/internal.h +++ b/fs/afs/internal.h @@ -68,6 +68,15 @@ struct afs_wait_mode { extern const struct afs_wait_mode afs_sync_call; extern const struct afs_wait_mode afs_async_call; +enum afs_call_state { + AFS_CALL_REQUESTING, /* request is being sent for outgoing call */ + AFS_CALL_AWAIT_REPLY, /* awaiting reply to outgoing call */ + AFS_CALL_AWAIT_OP_ID, /* awaiting op ID on incoming call */ + AFS_CALL_AWAIT_REQUEST, /* awaiting request data on incoming call */ + AFS_CALL_REPLYING, /* replying to incoming call */ + AFS_CALL_AWAIT_ACK, /* awaiting final ACK of incoming call */ + AFS_CALL_COMPLETE, /* Completed or failed */ +}; /* * a record of an in-progress RxRPC call */ @@ -91,15 +100,7 @@ struct afs_call { pgoff_t first; /* first page in mapping to deal with */ pgoff_t last; /* last page in mapping to deal with */ size_t offset; /* offset into received data store */ - enum { /* call state */ - AFS_CALL_REQUESTING, /* request is being sent for outgoing call */ - AFS_CALL_AWAIT_REPLY, /* awaiting reply to outgoing call */ - AFS_CALL_AWAIT_OP_ID, /* awaiting op ID on incoming call */ - AFS_CALL_AWAIT_REQUEST, /* awaiting request data on incoming call */ - AFS_CALL_REPLYING, /* replying to incoming call */ - AFS_CALL_AWAIT_ACK, /* awaiting final ACK of incoming call */ - AFS_CALL_COMPLETE, /* Completed or failed */ - } state; + enum afs_call_state state; int error; /* error code */ u32 abort_code; /* Remote abort ID or 0 */ unsigned request_size; /* size of request data */ @@ -773,6 +774,8 @@ extern int afs_fsync(struct file *, loff_t, loff_t, int); /* * debug tracing */ +#include <trace/events/afs.h> + extern unsigned afs_debug; #define dbgprintk(FMT,...) \ |