[PATCH 3/5] linux: Consolidate sync_file_range implementation

[Adhemerval Zanella]

This patch consolidates Linux sync_file_range at default
sysdeps/unix/sysv/linux/sync_file_range.c implementation.  It also
moves the rules flags from generic io/Makefile to Linux one due the
fact it is a Linux-only symbol.

Checked on i686-linux-gnu and x86_64-linux-gnu.

	* io/Makefile (CFLAGS-sync_file_range.c): Remove rule.
	* sysdeps/unix/sysv/linux/Makefile (CFLAGS-sync_file_range.c): New
	rule.
	* sysdeps/unix/sysv/linux/wordsize-64/syscalls.list: Remove
	sync_file_range.
---
 ChangeLog                                         | 6 ++++++
 io/Makefile                                       | 1 -
 sysdeps/unix/sysv/linux/Makefile                  | 1 +
 sysdeps/unix/sysv/linux/wordsize-64/syscalls.list | 1 -
 4 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/io/Makefile b/io/Makefile
index 16365e5..2f26bf5 100644
--- a/io/Makefile
+++ b/io/Makefile
@@ -99,7 +99,6 @@ CFLAGS-posix_fallocate.c = -fexceptions
 CFLAGS-posix_fallocate64.c = -fexceptions
 CFLAGS-fallocate.c = -fexceptions
 CFLAGS-fallocate64.c = -fexceptions
-CFLAGS-sync_file_range.c = -fexceptions
 CFLAGS-read.c = -fexceptions
 CFLAGS-write.c = -fexceptions
 
diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile
index 99b3f9d..1a170c2 100644
--- a/sysdeps/unix/sysv/linux/Makefile
+++ b/sysdeps/unix/sysv/linux/Makefile
@@ -25,6 +25,7 @@ CFLAGS-tee.c = -fexceptions -fasynchronous-unwind-tables
 CFLAGS-vmsplice.c = -fexceptions -fasynchronous-unwind-tables
 CFLAGS-splice.c = -fexceptions -fasynchronous-unwind-tables
 CFLAGS-open_by_handle_at.c = -fexceptions -fasynchronous-unwind-tables
+CFLAGS-sync_file_range.c = -fexceptions -fasynchronous-unwind-tables
 CFLAGS-tst-writev.c += "-DARTIFICIAL_LIMIT=(0x80000000-sysconf(_SC_PAGESIZE))"
 
 # Note that bits/mman-linux.h is listed here though the file lives in the
diff --git a/sysdeps/unix/sysv/linux/wordsize-64/syscalls.list b/sysdeps/unix/sysv/linux/wordsize-64/syscalls.list
index 5c78677..4bb7ebf 100644
--- a/sysdeps/unix/sysv/linux/wordsize-64/syscalls.list
+++ b/sysdeps/unix/sysv/linux/wordsize-64/syscalls.list
@@ -4,7 +4,6 @@ fstatfs		-	fstatfs		i:ip	__fstatfs	fstatfs fstatfs64 __fstatfs64
 statfs		-	statfs		i:sp	__statfs	statfs statfs64
 readahead	-	readahead	i:iii	__readahead	readahead
 sendfile	-	sendfile	i:iipi	sendfile	sendfile64
-sync_file_range	-	sync_file_range	Ci:iiii	sync_file_range
 prlimit		EXTRA	prlimit64	i:iipp	prlimit		prlimit64
 
 fanotify_mark	EXTRA	fanotify_mark	i:iiiis	fanotify_mark
-- 
2.7.4