Commit-ID: 41be4da4e85e58520b934040966a6ae919c66c2d Gitweb: http://git.kernel.org/tip/41be4da4e85e58520b934040966a6ae919c66c2d Author: "Steven Rostedt" <srostedt@xxxxxxxxxx> AuthorDate: Mon, 2 Mar 2009 20:56:48 -0500 Commit: Steven Rostedt <srostedt@xxxxxxxxxx> CommitDate: Tue, 3 Mar 2009 20:50:54 -0500 ring-buffer: reset write field for ring_buffer_read_page Impact: fix ring_buffer_read_page After a page is swapped into the ring buffer, the write field must also be reset. Signed-off-by: Steven Rostedt <srostedt@xxxxxxxxxx> --- kernel/trace/ring_buffer.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index a8c275c..9baad7e 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -2492,6 +2492,7 @@ int ring_buffer_read_page(struct ring_buffer *buffer, rb_init_page(bpage); bpage = cpu_buffer->reader_page->page; cpu_buffer->reader_page->page = *data_page; + local_set(&cpu_buffer->reader_page->write, 0); cpu_buffer->reader_page->read = 0; *data_page = bpage; } -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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