diff options
| author | Vincent Donnefort <vdonnefort@google.com> | 2026-03-09 19:25:03 +0300 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2026-03-09 19:33:55 +0300 |
| commit | 635923081c792c830fb87e680d6dd5f348926b3f (patch) | |
| tree | 4fcd46a5f03daf6dfb74702ea96905c3ab9d8c28 /include/linux/simple_ring_buffer.h | |
| parent | c88d510584abdb6f3d3517de3a3d48d9febc85ed (diff) | |
| download | linux-635923081c792c830fb87e680d6dd5f348926b3f.tar.xz | |
tracing: load/unload page callbacks for simple_ring_buffer
Add load/unload callback used for each admitted page in the ring-buffer.
This will be later useful for the pKVM hypervisor which uses a different
VA space and need to dynamically map/unmap the ring-buffer pages.
Link: https://patch.msgid.link/20260309162516.2623589-18-vdonnefort@google.com
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Vincent Donnefort <vdonnefort@google.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'include/linux/simple_ring_buffer.h')
| -rw-r--r-- | include/linux/simple_ring_buffer.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/simple_ring_buffer.h b/include/linux/simple_ring_buffer.h index 2c4c0ae336bc..21aec556293e 100644 --- a/include/linux/simple_ring_buffer.h +++ b/include/linux/simple_ring_buffer.h @@ -54,4 +54,12 @@ int simple_ring_buffer_reset(struct simple_rb_per_cpu *cpu_buffer); int simple_ring_buffer_swap_reader_page(struct simple_rb_per_cpu *cpu_buffer); +int simple_ring_buffer_init_mm(struct simple_rb_per_cpu *cpu_buffer, + struct simple_buffer_page *bpages, + const struct ring_buffer_desc *desc, + void *(*load_page)(unsigned long va), + void (*unload_page)(void *va)); + +void simple_ring_buffer_unload_mm(struct simple_rb_per_cpu *cpu_buffer, + void (*unload_page)(void *)); #endif |