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authorDavid Howells <dhowells@redhat.com>2017-11-02 15:27:51 +0000
committerDavid Howells <dhowells@redhat.com>2017-11-13 15:38:19 +0000
commit2c099014a0a456012c1778e80adce839bf956b77 (patch)
tree1ea2a00f106f02853bdff8309fdb83c59c17377d /fs/afs
parent025db80c9e421efef11f2b83b7f78a11476f06db (diff)
downloadlinux-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.c3
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;
}