diff options
| author | David Howells <dhowells@redhat.com> | 2024-12-16 20:40:54 +0000 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2024-12-20 22:34:02 +0100 |
| commit | aabcabf2746062253565b33aa3f8d25999a5ac01 (patch) | |
| tree | c6471f14ba0a7f7d44a9d0e721949db33ddd5471 /fs/netfs/read_collect.c | |
| parent | eb1181594417dafad0f75808ead71f6d5170c1ea (diff) | |
netfs: Add a tracepoint to log the lifespan of folio_queue structs
Add a tracepoint to log the lifespan of folio_queue structs. For tracing
illustrative purposes, folio_queues are tagged with the debug ID of
whatever they're related to (typically a netfs_io_request) and a debug ID
of their own.
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://lore.kernel.org/r/20241216204124.3752367-5-dhowells@redhat.com
cc: Jeff Layton <jlayton@kernel.org>
cc: netfs@lists.linux.dev
cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'fs/netfs/read_collect.c')
| -rw-r--r-- | fs/netfs/read_collect.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/fs/netfs/read_collect.c b/fs/netfs/read_collect.c index e8624f5c7fcc..f7a5cb29dd12 100644 --- a/fs/netfs/read_collect.c +++ b/fs/netfs/read_collect.c @@ -103,6 +103,7 @@ static bool netfs_consume_read_data(struct netfs_io_subrequest *subreq, bool was subreq->transferred, subreq->len)) subreq->transferred = subreq->len; + trace_netfs_folioq(folioq, netfs_trace_folioq_read_progress); next_folio: fsize = PAGE_SIZE << subreq->curr_folio_order; fpos = round_down(subreq->start + subreq->consumed, fsize); @@ -119,9 +120,11 @@ next_folio: if (folioq) { struct folio *folio = folioq_folio(folioq, slot); - pr_err("folioq: orders=%02x%02x%02x%02x\n", + pr_err("folioq: fq=%x orders=%02x%02x%02x%02x %px\n", + folioq->debug_id, folioq->orders[0], folioq->orders[1], - folioq->orders[2], folioq->orders[3]); + folioq->orders[2], folioq->orders[3], + folioq); if (folio) pr_err("folio: %llx-%llx ix=%llx o=%u qo=%u\n", fpos, fend - 1, folio_pos(folio), folio_order(folio), @@ -222,6 +225,7 @@ donation_changed: slot = 0; folioq = folioq->next; subreq->curr_folioq = folioq; + trace_netfs_folioq(folioq, netfs_trace_folioq_read_progress); } subreq->curr_folioq_slot = slot; if (folioq && folioq_folio(folioq, slot)) |