diff options
| author | David Howells <dhowells@redhat.com> | 2024-12-16 23:40:54 +0300 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2024-12-21 00:34:02 +0300 |
| commit | aabcabf2746062253565b33aa3f8d25999a5ac01 (patch) | |
| tree | c6471f14ba0a7f7d44a9d0e721949db33ddd5471 /include/linux | |
| parent | eb1181594417dafad0f75808ead71f6d5170c1ea (diff) | |
| download | linux-aabcabf2746062253565b33aa3f8d25999a5ac01.tar.xz | |
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 'include/linux')
| -rw-r--r-- | include/linux/folio_queue.h | 12 | ||||
| -rw-r--r-- | include/linux/netfs.h | 6 |
2 files changed, 13 insertions, 5 deletions
diff --git a/include/linux/folio_queue.h b/include/linux/folio_queue.h index 3abe614ef5f0..4d3f8074c137 100644 --- a/include/linux/folio_queue.h +++ b/include/linux/folio_queue.h @@ -37,16 +37,20 @@ struct folio_queue { #if PAGEVEC_SIZE > BITS_PER_LONG #error marks is not big enough #endif + unsigned int rreq_id; + unsigned int debug_id; }; /** * folioq_init - Initialise a folio queue segment * @folioq: The segment to initialise + * @rreq_id: The request identifier to use in tracelines. * - * Initialise a folio queue segment. Note that the folio pointers are - * left uninitialised. + * Initialise a folio queue segment and set an identifier to be used in traces. + * + * Note that the folio pointers are left uninitialised. */ -static inline void folioq_init(struct folio_queue *folioq) +static inline void folioq_init(struct folio_queue *folioq, unsigned int rreq_id) { folio_batch_init(&folioq->vec); folioq->next = NULL; @@ -54,6 +58,8 @@ static inline void folioq_init(struct folio_queue *folioq) folioq->marks = 0; folioq->marks2 = 0; folioq->marks3 = 0; + folioq->rreq_id = rreq_id; + folioq->debug_id = 0; } /** diff --git a/include/linux/netfs.h b/include/linux/netfs.h index c69e0f02c30f..5b2f427f8e3e 100644 --- a/include/linux/netfs.h +++ b/include/linux/netfs.h @@ -455,8 +455,10 @@ int netfs_start_io_direct(struct inode *inode); void netfs_end_io_direct(struct inode *inode); /* Miscellaneous APIs. */ -struct folio_queue *netfs_folioq_alloc(gfp_t gfp); -void netfs_folioq_free(struct folio_queue *folioq); +struct folio_queue *netfs_folioq_alloc(unsigned int rreq_id, gfp_t gfp, + unsigned int trace /*enum netfs_folioq_trace*/); +void netfs_folioq_free(struct folio_queue *folioq, + unsigned int trace /*enum netfs_trace_folioq*/); /** * netfs_inode - Get the netfs inode context from the inode |