diff options
| author | Pavel Begunkov <asml.silence@gmail.com> | 2024-11-29 13:34:23 +0000 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2024-12-23 08:17:15 -0700 |
| commit | 7427b0b49ad51304c041ffb8c413f342e148cdea (patch) | |
| tree | e0107370a54f2a2a36ec683bb72487a6de64f7a4 /io_uring/rsrc.h | |
| parent | 943d0609d0571af092dc13456cbca70351e4d20e (diff) | |
io_uring/rsrc: export io_check_coalesce_buffer
io_try_coalesce_buffer() is a useful helper collecting useful info about
a set of pages, I want to reuse it for analysing ring/etc. mappings. I
don't need the entire thing and only interested if it can be coalesced
into a single page, but that's better than duplicating the parsing.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/353b447953cd5d34c454a7d909bb6024c391d6e2.1732886067.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring/rsrc.h')
| -rw-r--r-- | io_uring/rsrc.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/io_uring/rsrc.h b/io_uring/rsrc.h index 7a4668deaa1a..c8b093584461 100644 --- a/io_uring/rsrc.h +++ b/io_uring/rsrc.h @@ -40,6 +40,7 @@ struct io_imu_folio_data { /* For non-head/tail folios, has to be fully included */ unsigned int nr_pages_mid; unsigned int folio_shift; + unsigned int nr_folios; }; struct io_rsrc_node *io_rsrc_node_alloc(struct io_ring_ctx *ctx, int type); @@ -66,6 +67,9 @@ int io_register_rsrc_update(struct io_ring_ctx *ctx, void __user *arg, int io_register_rsrc(struct io_ring_ctx *ctx, void __user *arg, unsigned int size, unsigned int type); +bool io_check_coalesce_buffer(struct page **page_array, int nr_pages, + struct io_imu_folio_data *data); + static inline struct io_rsrc_node *io_rsrc_node_lookup(struct io_rsrc_data *data, int index) { |