static inline
int lib_ring_buffer_try_reserve(const struct lib_ring_buffer_config *config,
struct lib_ring_buffer_ctx *ctx,
+ void *client_ctx,
unsigned long *o_begin, unsigned long *o_end,
unsigned long *o_old, size_t *before_hdr_pad)
{
return 1;
ctx->slot_size = record_header_size(config, chan, *o_begin,
- before_hdr_pad, ctx);
+ before_hdr_pad, ctx, client_ctx);
ctx->slot_size +=
lib_ring_buffer_align(*o_begin + ctx->slot_size,
ctx->largest_align) + ctx->data_size;
static inline
int lib_ring_buffer_reserve(const struct lib_ring_buffer_config *config,
- struct lib_ring_buffer_ctx *ctx)
+ struct lib_ring_buffer_ctx *ctx,
+ void *client_ctx)
{
struct channel *chan = ctx->chan;
struct lib_ring_buffer *buf;
/*
* Perform retryable operations.
*/
- if (unlikely(lib_ring_buffer_try_reserve(config, ctx, &o_begin,
+ if (unlikely(lib_ring_buffer_try_reserve(config, ctx, client_ctx, &o_begin,
&o_end, &o_old, &before_hdr_pad)))
goto slow_path;
ctx->buf_offset = o_begin + before_hdr_pad;
return 0;
slow_path:
- return lib_ring_buffer_reserve_slow(ctx);
+ return lib_ring_buffer_reserve_slow(ctx, client_ctx);
}
/**
unsigned long offset_end = ctx->buf_offset;
unsigned long endidx = subbuf_index(offset_end - 1, chan);
unsigned long commit_count;
+ struct commit_counters_hot *cc_hot = &buf->commit_hot[endidx];
/*
* Must count record before incrementing the commit count.
} else
smp_wmb();
- v_add(config, ctx->slot_size, &buf->commit_hot[endidx].cc);
+ v_add(config, ctx->slot_size, &cc_hot->cc);
/*
* commit count read can race with concurrent OOO commit count updates.
* count reaches back the reserve offset for a specific sub-buffer,
* which is completely independent of the order.
*/
- commit_count = v_read(config, &buf->commit_hot[endidx].cc);
+ commit_count = v_read(config, &cc_hot->cc);
lib_ring_buffer_check_deliver(config, buf, chan, offset_end - 1,
commit_count, endidx, ctx->tsc);
* Update used size at each commit. It's needed only for extracting
* ring_buffer buffers from vmcore, after crash.
*/
- lib_ring_buffer_write_commit_counter(config, buf, chan, endidx,
- offset_end, commit_count);
+ lib_ring_buffer_write_commit_counter(config, buf, chan,
+ offset_end, commit_count, cc_hot);
}
/**