diff options
Diffstat (limited to 'config/kernel-blk-queue-unplug.m4')
| -rw-r--r-- | config/kernel-blk-queue-unplug.m4 | 48 |
1 files changed, 29 insertions, 19 deletions
diff --git a/config/kernel-blk-queue-unplug.m4 b/config/kernel-blk-queue-unplug.m4 index 075fbccd1..f5d1814b8 100644 --- a/config/kernel-blk-queue-unplug.m4 +++ b/config/kernel-blk-queue-unplug.m4 @@ -2,43 +2,53 @@ dnl # dnl # 2.6.32-2.6.35 API - The BIO_RW_UNPLUG enum can be used as a hint dnl # to unplug the queue. dnl # -AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_HAVE_BIO_RW_UNPLUG], [ - AC_MSG_CHECKING([whether the BIO_RW_UNPLUG enum is available]) - tmp_flags="$EXTRA_KCFLAGS" - EXTRA_KCFLAGS="${NO_UNUSED_BUT_SET_VARIABLE}" - ZFS_LINUX_TRY_COMPILE([ +AC_DEFUN([ZFS_AC_KERNEL_SRC_BIO_RW_UNPLUG], [ + ZFS_LINUX_TEST_SRC([blk_queue_bio_rw_unplug], [ #include <linux/blkdev.h> ],[ - extern enum bio_rw_flags rw; + enum bio_rw_flags rw __attribute__ ((unused)) = BIO_RW_UNPLUG; + ]) +]) - rw = BIO_RW_UNPLUG; - ],[ +AC_DEFUN([ZFS_AC_KERNEL_BIO_RW_UNPLUG], [ + AC_MSG_CHECKING([whether the BIO_RW_UNPLUG enum is available]) + ZFS_LINUX_TEST_RESULT([blk_queue_bio_rw_unplug], [ AC_MSG_RESULT(yes) AC_DEFINE(HAVE_BLK_QUEUE_HAVE_BIO_RW_UNPLUG, 1, - [BIO_RW_UNPLUG is available]) + [BIO_RW_UNPLUG is available]) ],[ AC_MSG_RESULT(no) ]) - EXTRA_KCFLAGS="$tmp_flags" ]) -AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_HAVE_BLK_PLUG], [ - AC_MSG_CHECKING([whether struct blk_plug is available]) - tmp_flags="$EXTRA_KCFLAGS" - EXTRA_KCFLAGS="${NO_UNUSED_BUT_SET_VARIABLE}" - ZFS_LINUX_TRY_COMPILE([ +AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_PLUG], [ + ZFS_LINUX_TEST_SRC([blk_plug], [ #include <linux/blkdev.h> ],[ - struct blk_plug plug; + struct blk_plug plug __attribute__ ((unused)); blk_start_plug(&plug); blk_finish_plug(&plug); - ],[ + ]) +]) + +AC_DEFUN([ZFS_AC_KERNEL_BLK_PLUG], [ + AC_MSG_CHECKING([whether struct blk_plug is available]) + ZFS_LINUX_TEST_RESULT([blk_plug], [ AC_MSG_RESULT(yes) AC_DEFINE(HAVE_BLK_QUEUE_HAVE_BLK_PLUG, 1, - [struct blk_plug is available]) + [struct blk_plug is available]) ],[ AC_MSG_RESULT(no) ]) - EXTRA_KCFLAGS="$tmp_flags" +]) + +AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_PLUG], [ + ZFS_AC_KERNEL_SRC_BIO_RW_UNPLUG + ZFS_AC_KERNEL_SRC_BLK_PLUG +]) + +AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_PLUG], [ + ZFS_AC_KERNEL_BIO_RW_UNPLUG + ZFS_AC_KERNEL_BLK_PLUG ]) |