+++ /dev/null
-dnl #
-dnl # 2.6.30 API change
-dnl # The blk_queue_io_opt() function was added to indicate the optimal
-dnl # I/O size for the device.
-dnl #
-AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_IO_OPT], [
- AC_MSG_CHECKING([whether blk_queue_io_opt() is available])
- tmp_flags="$EXTRA_KCFLAGS"
- EXTRA_KCFLAGS="${NO_UNUSED_BUT_SET_VARIABLE}"
- ZFS_LINUX_TRY_COMPILE([
- #include <linux/blkdev.h>
- ],[
- struct request_queue *q = NULL;
- unsigned int opt = 1;
- (void) blk_queue_io_opt(q, opt);
- ],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_BLK_QUEUE_IO_OPT, 1,
- [blk_queue_io_opt() is available])
- ],[
- AC_MSG_RESULT(no)
- ])
- EXTRA_KCFLAGS="$tmp_flags"
-])
ZFS_AC_KERNEL_BLK_QUEUE_FLUSH
ZFS_AC_KERNEL_BLK_QUEUE_MAX_HW_SECTORS
ZFS_AC_KERNEL_BLK_QUEUE_MAX_SEGMENTS
- ZFS_AC_KERNEL_BLK_QUEUE_IO_OPT
ZFS_AC_KERNEL_BLK_QUEUE_NONROT
ZFS_AC_KERNEL_BLK_QUEUE_DISCARD
ZFS_AC_KERNEL_BLK_FETCH_REQUEST
}
#endif
-/*
- * 2.6.30 API change,
- * The blk_queue_io_opt() function was added to indicate the optimal
- * I/O size for the device. For older kernels this is a no-op.
- */
-#ifndef HAVE_BLK_QUEUE_IO_OPT
-#define blk_queue_io_opt(q, x) ((void)(0))
-#endif
-
#ifndef HAVE_GET_DISK_RO
static inline int
get_disk_ro(struct gendisk *disk)