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| author | David Howells <dhowells@redhat.com> | 2017-11-02 15:27:51 +0000 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2017-11-13 15:38:19 +0000 |
| commit | 2c099014a0a456012c1778e80adce839bf956b77 (patch) | |
| tree | 1ea2a00f106f02853bdff8309fdb83c59c17377d /fs/afs | |
| parent | 025db80c9e421efef11f2b83b7f78a11476f06db (diff) | |
| download | linux-2c099014a0a456012c1778e80adce839bf956b77.tar.bz2 | |
afs: Trace the sending of pages
Add a pair of tracepoints to log the sending of pages for an FS.StoreData
or FS.StoreData64 operation.
Tracepoint afs_send_pages notes each set of pages added to the operation.
There may be several of these per operation as we get up at most 8
contiguous pages in one go because the bvec we're using is on the stack.
Tracepoint afs_sent_pages notes the end of adding data from a whole run of
pages to the operation and the completion of the request phase.
Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'fs/afs')
| -rw-r--r-- | fs/afs/rxrpc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/afs/rxrpc.c b/fs/afs/rxrpc.c index 59cc58022c4d..06a51d70b82b 100644 --- a/fs/afs/rxrpc.c +++ b/fs/afs/rxrpc.c @@ -303,6 +303,8 @@ static int afs_send_pages(struct afs_call *call, struct msghdr *msg) do { afs_load_bvec(call, msg, bv, first, last, offset); + trace_afs_send_pages(call, msg, first, last, offset); + offset = 0; bytes = msg->msg_iter.count; nr = msg->msg_iter.nr_segs; @@ -317,6 +319,7 @@ static int afs_send_pages(struct afs_call *call, struct msghdr *msg) first += nr; } while (first <= last); + trace_afs_sent_pages(call, call->first, last, first, ret); return ret; } |