[lttng-dev] [LTTNG-TOOLS PATCH] Fix: reset out_fd_offset when we rotate the trace file

[Julien Desfossez]

This value is only used for the sync_file_range, but it has to be set
to 0 when we start to write in a new trace file, otherwise the values
passed to this call are bogus.

Applied to 2.3, but could probably be backported to 2.2.

Signed-off-by: Julien Desfossez <jdesfossez at efficios.com>
---
 src/common/consumer.c |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/common/consumer.c b/src/common/consumer.c
index 221c348..59207da 100644
--- a/src/common/consumer.c
+++ b/src/common/consumer.c
@@ -1431,6 +1431,8 @@ ssize_t lttng_consumer_on_read_subbuffer_mmap(
 			outfd = stream->out_fd = ret;
 			/* Reset current size because we just perform a rotation. */
 			stream->tracefile_size_current = 0;
+			stream->out_fd_offset = 0;
+			orig_offset = 0;
 		}
 		stream->tracefile_size_current += len;
 	}
@@ -1614,6 +1616,8 @@ ssize_t lttng_consumer_on_read_subbuffer_splice(
 			outfd = stream->out_fd = ret;
 			/* Reset current size because we just perform a rotation. */
 			stream->tracefile_size_current = 0;
+			stream->out_fd_offset = 0;
+			orig_offset = 0;
 		}
 		stream->tracefile_size_current += len;
 	}
-- 
1.7.10.4