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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2025-05-19 11:12:36 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2025-05-19 11:12:36 -0300 |
| commit | 4d4eb38795b5cbc66103ae2582bccead5bf0f736 (patch) | |
| tree | 8048284284f48cb7c97a5c4fef0fc712125bbffa /kernel/trace/ring_buffer.c | |
| parent | 8cdf00b843ea3ca0e920176937bbc906b0b5bb04 (diff) | |
| parent | a5806cd506af5a7c19bcd596e4708b5c464bfd21 (diff) | |
| download | linux-4d4eb38795b5cbc66103ae2582bccead5bf0f736.tar.gz linux-4d4eb38795b5cbc66103ae2582bccead5bf0f736.zip | |
Merge remote-tracking branch 'torvalds/master' into perf-tools-next
To pick up changes for other tools/ libraries used by perf and for
header synchronization with the kernel sources originals.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'kernel/trace/ring_buffer.c')
| -rw-r--r-- | kernel/trace/ring_buffer.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index c0f877d39a24..3f9bf562beea 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -1887,10 +1887,12 @@ static void rb_meta_validate_events(struct ring_buffer_per_cpu *cpu_buffer) head_page = cpu_buffer->head_page; - /* If both the head and commit are on the reader_page then we are done. */ - if (head_page == cpu_buffer->reader_page && - head_page == cpu_buffer->commit_page) + /* If the commit_buffer is the reader page, update the commit page */ + if (meta->commit_buffer == (unsigned long)cpu_buffer->reader_page->page) { + cpu_buffer->commit_page = cpu_buffer->reader_page; + /* Nothing more to do, the only page is the reader page */ goto done; + } /* Iterate until finding the commit page */ for (i = 0; i < meta->nr_subbufs + 1; i++, rb_inc_page(&head_page)) { |