+++ /dev/null
-Make sync_file_range() usage optional
-
-Under uClibc, sync_file_range() is not available under all
-architectures, so we fall back to fdatasync() in this case.
-
-Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
-
-Index: lttng-tools-2.0-pre15/configure.ac
-===================================================================
---- lttng-tools-2.0-pre15.orig/configure.ac 2012-02-01 16:31:31.140978817 +0100
-+++ lttng-tools-2.0-pre15/configure.ac 2012-02-01 16:31:42.110783708 +0100
-@@ -96,7 +96,7 @@
-
- AM_CONDITIONAL([HAVE_LIBLTTNG_UST_CTL], [ test "x$ac_cv_lib_lttng_ust_ctl_ustctl_create_session" = "xyes" ])
-
--AC_CHECK_FUNCS([sched_getcpu sysconf])
-+AC_CHECK_FUNCS([sched_getcpu sysconf sync_file_range])
-
- # Option to only build the consumer daemon and its libraries
- AC_ARG_WITH([consumerd-only],
-Index: lttng-tools-2.0-pre15/liblttng-consumer/lttng-consumer.c
-===================================================================
---- lttng-tools-2.0-pre15.orig/liblttng-consumer/lttng-consumer.c 2012-02-01 16:36:00.876292596 +0100
-+++ lttng-tools-2.0-pre15/liblttng-consumer/lttng-consumer.c 2012-02-01 16:36:23.435901163 +0100
-@@ -527,11 +527,15 @@
- if (orig_offset < stream->chan->max_sb_size) {
- return;
- }
-+#ifdef HAVE_SYNC_FILE_RANGE
- sync_file_range(outfd, orig_offset - stream->chan->max_sb_size,
- stream->chan->max_sb_size,
- SYNC_FILE_RANGE_WAIT_BEFORE
- | SYNC_FILE_RANGE_WRITE
- | SYNC_FILE_RANGE_WAIT_AFTER);
-+#else
-+ fdatasync(outfd);
-+#endif
- /*
- * Give hints to the kernel about how we access the file:
- * POSIX_FADV_DONTNEED : we won't re-access data in a near future after
-Index: lttng-tools-2.0-pre15/liblttng-kconsumer/lttng-kconsumer.c
-===================================================================
---- lttng-tools-2.0-pre15.orig/liblttng-kconsumer/lttng-kconsumer.c 2012-02-01 16:36:36.215679416 +0100
-+++ lttng-tools-2.0-pre15/liblttng-kconsumer/lttng-kconsumer.c 2012-02-01 16:59:08.622203348 +0100
-@@ -71,8 +71,12 @@
- goto end;
- }
- /* This won't block, but will start writeout asynchronously */
-+#ifdef HAVE_SYNC_FILE_RANGE
- sync_file_range(outfd, stream->out_fd_offset, ret,
- SYNC_FILE_RANGE_WRITE);
-+#else
-+ fdatasync(outfd);
-+#endif
- stream->out_fd_offset += ret;
- }
-
-@@ -121,8 +125,12 @@
- }
- len -= ret;
- /* This won't block, but will start writeout asynchronously */
-+#ifdef HAVE_SYNC_FILE_RANGE
- sync_file_range(outfd, stream->out_fd_offset, ret,
- SYNC_FILE_RANGE_WRITE);
-+#else
-+ fdatasync(outfd);
-+#endif
- stream->out_fd_offset += ret;
- }
- lttng_consumer_sync_trace_file(stream, orig_offset);
-Index: lttng-tools-2.0-pre15/liblttng-ustconsumer/lttng-ustconsumer.c
-===================================================================
---- lttng-tools-2.0-pre15.orig/liblttng-ustconsumer/lttng-ustconsumer.c 2012-02-01 16:37:11.495067263 +0100
-+++ lttng-tools-2.0-pre15/liblttng-ustconsumer/lttng-ustconsumer.c 2012-02-01 16:37:31.224724916 +0100
-@@ -70,8 +70,12 @@
- goto end;
- }
- /* This won't block, but will start writeout asynchronously */
-+#ifdef HAVE_SYNC_FILE_RANGE
- sync_file_range(outfd, stream->out_fd_offset, ret,
- SYNC_FILE_RANGE_WRITE);
-+#else
-+ fdatasync(outfd);
-+#endif
- stream->out_fd_offset += ret;
- }
-
--- /dev/null
+Make sync_file_range() usage optional
+
+Under uClibc, sync_file_range() is not available under all
+architectures, so we fall back to fdatasync() in this case.
+
+Inspired by the patch done by Thomas Petazzoni for the
+2.0-pre25 version.
+
+Signed-off-by: Samuel Martin <s.martin49@gmail.com>
+---
+ configure.ac | 2 +-
+ src/common/compat/fcntl.h | 5 +++++
+ 2 files changed, 6 insertions(+), 1 deletion(-)
+
+diff --git a/configure.ac b/configure.ac
+index 5808c79..065b9cf 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -120,7 +120,7 @@ AS_IF([test "x$lttng_ust_support" = "xyes"], [
+
+ AM_CONDITIONAL([HAVE_LIBLTTNG_UST_CTL], [ test "x$ac_cv_lib_lttng_ust_ctl_ustctl_create_session" = "xyes" ])
+
+-AC_CHECK_FUNCS([sched_getcpu sysconf])
++AC_CHECK_FUNCS([sched_getcpu sysconf sync_file_range])
+
+ # check for dlopen
+ AC_CHECK_LIB([dl], [dlopen],
+diff --git a/src/common/compat/fcntl.h b/src/common/compat/fcntl.h
+index 58c1579..dafb33e 100644
+--- a/src/common/compat/fcntl.h
++++ b/src/common/compat/fcntl.h
+@@ -23,10 +23,15 @@
+
+ #ifdef __linux__
+
++#if defined(HAVE_SYNC_FILE_RANGE)
+ extern int compat_sync_file_range(int fd, off64_t offset, off64_t nbytes,
+ unsigned int flags);
+ #define lttng_sync_file_range(fd, offset, nbytes, flags) \
+ compat_sync_file_range(fd, offset, nbytes, flags)
++#else
++#define lttng_sync_file_range(fd, offset, nbytes, flags) \
++ fdatasync(fd);
++#endif
+
+ #elif defined(__FreeBSD__)
+
+--
+1.7.10
+