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Linux 4.7 compat: replace blk_queue_flush with blk_queue_write_cache

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Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #4665
This commit is contained in:
Chunwei Chen
2016-05-18 13:45:39 -07:00
committed by Brian Behlendorf
parent fd4c7b7a73
commit 68e8f59afb
3 changed files with 77 additions and 9 deletions
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config/kernel-blk-queue-flush.m4
+47 -8
View File
@@ -22,25 +22,64 @@ AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_FLUSH], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLK_QUEUE_FLUSH, 1,
[blk_queue_flush() is available])
AC_MSG_CHECKING([whether blk_queue_flush() is GPL-only])
ZFS_LINUX_TRY_COMPILE([
#include <linux/module.h>
#include <linux/blkdev.h>
MODULE_LICENSE("$ZFS_META_LICENSE");
],[
struct request_queue *q = NULL;
(void) blk_queue_flush(q, REQ_FLUSH);
],[
AC_MSG_RESULT(no)
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLK_QUEUE_FLUSH_GPL_ONLY, 1,
[blk_queue_flush() is GPL-only])
])
],[
AC_MSG_RESULT(no)
])
AC_MSG_CHECKING([whether blk_queue_flush() is GPL-only])
dnl #
dnl # 4.7 API change
dnl # Replace blk_queue_flush with blk_queue_write_cache
dnl #
AC_MSG_CHECKING([whether blk_queue_write_cache() exists])
ZFS_LINUX_TRY_COMPILE([
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/blkdev.h>
MODULE_LICENSE("$ZFS_META_LICENSE");
],[
struct request_queue *q = NULL;
(void) blk_queue_flush(q, REQ_FLUSH);
],[
AC_MSG_RESULT(no)
blk_queue_write_cache(q, true, true);
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLK_QUEUE_FLUSH_GPL_ONLY, 1,
[blk_queue_flush() is GPL-only])
AC_DEFINE(HAVE_BLK_QUEUE_WRITE_CACHE, 1,
[blk_queue_write_cache() exists])
AC_MSG_CHECKING([whether blk_queue_write_cache() is GPL-only])
ZFS_LINUX_TRY_COMPILE([
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/blkdev.h>
MODULE_LICENSE("$ZFS_META_LICENSE");
],[
struct request_queue *q = NULL;
blk_queue_write_cache(q, true, true);
],[
AC_MSG_RESULT(no)
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLK_QUEUE_WRITE_CACHE_GPL_ONLY, 1,
[blk_queue_write_cache() is GPL-only])
])
],[
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])