diff options
Diffstat (limited to 'fs/netfs/misc.c')
| -rw-r--r-- | fs/netfs/misc.c | 31 |
1 files changed, 20 insertions, 11 deletions
diff --git a/fs/netfs/misc.c b/fs/netfs/misc.c index 6cd7e1ee7a14..afe032551de5 100644 --- a/fs/netfs/misc.c +++ b/fs/netfs/misc.c @@ -10,18 +10,25 @@ /** * netfs_folioq_alloc - Allocate a folio_queue struct + * @rreq_id: Associated debugging ID for tracing purposes * @gfp: Allocation constraints + * @trace: Trace tag to indicate the purpose of the allocation * - * Allocate, initialise and account the folio_queue struct. + * Allocate, initialise and account the folio_queue struct and log a trace line + * to mark the allocation. */ -struct folio_queue *netfs_folioq_alloc(gfp_t gfp) +struct folio_queue *netfs_folioq_alloc(unsigned int rreq_id, gfp_t gfp, + unsigned int /*enum netfs_folioq_trace*/ trace) { + static atomic_t debug_ids; struct folio_queue *fq; fq = kmalloc(sizeof(*fq), gfp); if (fq) { netfs_stat(&netfs_n_folioq); - folioq_init(fq); + folioq_init(fq, rreq_id); + fq->debug_id = atomic_inc_return(&debug_ids); + trace_netfs_folioq(fq, trace); } return fq; } @@ -30,11 +37,14 @@ EXPORT_SYMBOL(netfs_folioq_alloc); /** * netfs_folioq_free - Free a folio_queue struct * @folioq: The object to free + * @trace: Trace tag to indicate which free * * Free and unaccount the folio_queue struct. */ -void netfs_folioq_free(struct folio_queue *folioq) +void netfs_folioq_free(struct folio_queue *folioq, + unsigned int /*enum netfs_trace_folioq*/ trace) { + trace_netfs_folioq(folioq, trace); netfs_stat_d(&netfs_n_folioq); kfree(folioq); } @@ -43,7 +53,8 @@ EXPORT_SYMBOL(netfs_folioq_free); /* * Make sure there's space in the rolling queue. */ -struct folio_queue *netfs_buffer_make_space(struct netfs_io_request *rreq) +struct folio_queue *netfs_buffer_make_space(struct netfs_io_request *rreq, + enum netfs_folioq_trace trace) { struct folio_queue *tail = rreq->buffer_tail, *prev; unsigned int prev_nr_slots = 0; @@ -59,11 +70,9 @@ struct folio_queue *netfs_buffer_make_space(struct netfs_io_request *rreq) prev_nr_slots = folioq_nr_slots(tail); } - tail = kmalloc(sizeof(*tail), GFP_NOFS); + tail = netfs_folioq_alloc(rreq->debug_id, GFP_NOFS, trace); if (!tail) return ERR_PTR(-ENOMEM); - netfs_stat(&netfs_n_folioq); - folioq_init(tail); tail->prev = prev; if (prev) /* [!] NOTE: After we set prev->next, the consumer is entirely @@ -98,7 +107,7 @@ int netfs_buffer_append_folio(struct netfs_io_request *rreq, struct folio *folio struct folio_queue *tail; unsigned int slot, order = folio_order(folio); - tail = netfs_buffer_make_space(rreq); + tail = netfs_buffer_make_space(rreq, netfs_trace_folioq_alloc_append_folio); if (IS_ERR(tail)) return PTR_ERR(tail); @@ -119,7 +128,7 @@ struct folio_queue *netfs_delete_buffer_head(struct netfs_io_request *wreq) if (next) next->prev = NULL; - netfs_folioq_free(head); + netfs_folioq_free(head, netfs_trace_folioq_delete); wreq->buffer = next; return next; } @@ -142,7 +151,7 @@ void netfs_clear_buffer(struct netfs_io_request *rreq) folio_put(folio); } } - netfs_folioq_free(p); + netfs_folioq_free(p, netfs_trace_folioq_clear); } } |