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authorRichard Yao <[email protected]>2014-09-14 23:39:03 -0400
committerRichard Yao <[email protected]>2015-09-04 15:37:25 -0400
commitd677203a9b38b389184a4e2c43c6cd8f8e5b20d4 (patch)
tree519eea5209414e239937416fc5f847a006546e5d /config/kernel-blk-queue-discard.m4
parent7d6e2adb4e4a60efe2a906faf00d134c0403dda5 (diff)
Remove blk_queue_discard() autotools check
This autotools check was never needed because we can check for the existence of QUEUE_FLAG_DISCARD in the kernel headers. Signed-off-by: Richard Yao <[email protected]>
Diffstat (limited to 'config/kernel-blk-queue-discard.m4')
-rw-r--r--config/kernel-blk-queue-discard.m422
1 files changed, 0 insertions, 22 deletions
diff --git a/config/kernel-blk-queue-discard.m4 b/config/kernel-blk-queue-discard.m4
deleted file mode 100644
index 8306c88ee..000000000
--- a/config/kernel-blk-queue-discard.m4
+++ /dev/null
@@ -1,22 +0,0 @@
-dnl #
-dnl # 2.6.32 API change
-dnl # Discard requests were moved to the normal I/O path.
-dnl #
-AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_DISCARD], [
- AC_MSG_CHECKING([whether blk_queue_discard() 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;
- (void) blk_queue_discard(q);
- ],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_BLK_QUEUE_DISCARD, 1,
- [blk_queue_discard() is available])
- ],[
- AC_MSG_RESULT(no)
- ])
- EXTRA_KCFLAGS="$tmp_flags"
-])