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Searched refs:subbuf_size (Results 1 – 7 of 7) sorted by relevance

/linux/kernel/
H A Drelay.c478 size_t subbuf_size, in relay_open() argument
487 if (!(subbuf_size && n_subbufs)) in relay_open()
489 if (subbuf_size > UINT_MAX / n_subbufs) in relay_open()
506 chan->subbuf_size = subbuf_size; in relay_open()
507 chan->alloc_size = PAGE_ALIGN(subbuf_size * n_subbufs); in relay_open()
561 if (unlikely(length > buf->chan->subbuf_size)) in relay_switch_subbuf()
564 if (buf->offset != buf->chan->subbuf_size + 1) { in relay_switch_subbuf()
567 prev_padding = buf->chan->subbuf_size - buf->offset; in relay_switch_subbuf()
573 buf->chan->subbuf_size - in relay_switch_subbuf()
576 buf->early_bytes += buf->chan->subbuf_size - in relay_switch_subbuf()
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/linux/tools/testing/selftests/ring-buffer/
H A Dmap_test.c126 int subbuf_size; in FIXTURE_VARIANT() local
130 .subbuf_size = 4, in FIXTURE_VARIANT_ADD()
134 .subbuf_size = 8, in FIXTURE_VARIANT_ADD()
161 tracefs_write_int(TRACEFS_ROOT"/buffer_subbuf_size_kb", variant->subbuf_size); in FIXTURE_SETUP()
221 data_len = desc->meta->subbuf_size * desc->meta->nr_subbufs; in TEST_F()
230 data_len -= desc->meta->subbuf_size; in TEST_F()
237 meta_len += desc->meta->subbuf_size * 2; in TEST_F()
243 data_len = desc->meta->subbuf_size * desc->meta->nr_subbufs; in TEST_F()
245 desc->cpu_fd, data_len + (desc->meta->subbuf_size * 2)); in TEST_F()
/linux/include/linux/
H A Drelay.h78 size_t subbuf_size; /* sub-buffer size */ member
171 size_t subbuf_size,
209 if (unlikely(buf->offset + length > chan->subbuf_size)) in relay_write()
235 if (unlikely(buf->offset + length > buf->chan->subbuf_size)) in __relay_write()
258 if (unlikely(buf->offset + length > buf->chan->subbuf_size)) { in relay_reserve()
282 BUG_ON(length >= buf->chan->subbuf_size - 1); in subbuf_start_reserve()
/linux/kernel/trace/
H A Dring_buffer.c61 __u32 subbuf_size; member
594 unsigned int subbuf_size; member
638 (unsigned int)buffer->subbuf_size, in ring_buffer_print_page_header()
1615 rb_range_align_subbuf(unsigned long addr, int subbuf_size, int nr_subbufs) in rb_range_align_subbuf() argument
1619 return ALIGN(addr, subbuf_size); in rb_range_align_subbuf()
1627 int subbuf_size = buffer->subbuf_size + BUF_PAGE_HDR_SIZE; in rb_range_meta() local
1653 ptr = rb_range_align_subbuf(ptr, subbuf_size, nr_subbufs); in rb_range_meta()
1654 ptr += subbuf_size * nr_subbufs; in rb_range_meta()
1663 ptr = rb_range_align_subbuf(ptr, subbuf_size, nr_subbufs); in rb_range_meta()
1664 ptr += subbuf_size * nr_subbufs; in rb_range_meta()
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/linux/Documentation/trace/
H A Dring-buffer-map.rst30 reader_offset = meta->meta_page_size + reader_id * meta->subbuf_size;
88 data_len = meta->subbuf_size * meta->nr_subbufs;
97 reader = data + meta->subbuf_size * reader_id;
/linux/include/uapi/linux/
H A Dtrace_mmap.h27 __u32 subbuf_size; member
/linux/Documentation/filesystems/
H A Drelay.rst166 relay_open(base_filename, parent, subbuf_size, n_subbufs,