diff options
| author | David Howells <dhowells@redhat.com> | 2024-12-16 20:41:08 +0000 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2024-12-20 22:34:06 +0100 |
| commit | e61bfaad8fd86ac84eac633e0bbaac47a5dfd358 (patch) | |
| tree | cf5f8815355898524a1e2d1eaefd43a2ad4cd409 /include | |
| parent | 9e705016eb8f3d4a58f2000e560ea2c7517e081b (diff) | |
netfs: Add functions to build/clean a buffer in a folio_queue
Add two netfslib functions to build up or clean up a buffer in a
folio_queue. The first, netfs_alloc_folioq_buffer() will add folios to a
buffer, extending up at least to the given size. If it can, it will add
multipage folios. The folios are optionally have the mapping set and will
have the index set according to the distance from the front of the folio
queue.
The second function will free up a folio queue and put any folios in the
queue that have the first mark set.
The netfs_folio tracepoint is also altered to cope with folios that have a
NULL mapping, and the folios being added/put will have trace lines emitted
and will be accounted in the stats.
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://lore.kernel.org/r/20241216204124.3752367-19-dhowells@redhat.com
cc: Jeff Layton <jlayton@kernel.org>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: netfs@lists.linux.dev
cc: linux-afs@lists.infradead.org
cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/netfs.h | 6 | ||||
| -rw-r--r-- | include/trace/events/netfs.h | 6 |
2 files changed, 8 insertions, 4 deletions
diff --git a/include/linux/netfs.h b/include/linux/netfs.h index 374e54beacbe..dd737344cff3 100644 --- a/include/linux/netfs.h +++ b/include/linux/netfs.h @@ -457,6 +457,12 @@ struct folio_queue *netfs_folioq_alloc(unsigned int rreq_id, gfp_t gfp, void netfs_folioq_free(struct folio_queue *folioq, unsigned int trace /*enum netfs_trace_folioq*/); +/* Buffer wrangling helpers API. */ +int netfs_alloc_folioq_buffer(struct address_space *mapping, + struct folio_queue **_buffer, + size_t *_cur_size, ssize_t size, gfp_t gfp); +void netfs_free_folioq_buffer(struct folio_queue *fq); + /** * netfs_inode - Get the netfs inode context from the inode * @inode: The inode to query diff --git a/include/trace/events/netfs.h b/include/trace/events/netfs.h index 02f6e179b7bc..fc237ff23a33 100644 --- a/include/trace/events/netfs.h +++ b/include/trace/events/netfs.h @@ -155,6 +155,7 @@ EM(netfs_streaming_filled_page, "mod-streamw-f") \ EM(netfs_streaming_cont_filled_page, "mod-streamw-f+") \ EM(netfs_folio_trace_abandon, "abandon") \ + EM(netfs_folio_trace_alloc_buffer, "alloc-buf") \ EM(netfs_folio_trace_cancel_copy, "cancel-copy") \ EM(netfs_folio_trace_cancel_store, "cancel-store") \ EM(netfs_folio_trace_clear, "clear") \ @@ -195,10 +196,7 @@ E_(netfs_trace_donate_to_deferred_next, "defer-next") #define netfs_folioq_traces \ - EM(netfs_trace_folioq_alloc_append_folio, "alloc-apf") \ - EM(netfs_trace_folioq_alloc_read_prep, "alloc-r-prep") \ - EM(netfs_trace_folioq_alloc_read_prime, "alloc-r-prime") \ - EM(netfs_trace_folioq_alloc_read_sing, "alloc-r-sing") \ + EM(netfs_trace_folioq_alloc_buffer, "alloc-buf") \ EM(netfs_trace_folioq_clear, "clear") \ EM(netfs_trace_folioq_delete, "delete") \ EM(netfs_trace_folioq_make_space, "make-space") \ |