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-rw-r--r--Makefile.in1
-rw-r--r--cmd/Makefile.in1
-rw-r--r--cmd/mount_zfs/Makefile.in1
-rw-r--r--cmd/vdev_id/Makefile.in1
-rw-r--r--cmd/zdb/Makefile.in1
-rw-r--r--cmd/zfs/Makefile.in1
-rw-r--r--cmd/zinject/Makefile.in1
-rw-r--r--cmd/zpios/Makefile.in1
-rw-r--r--cmd/zpool/Makefile.in1
-rw-r--r--cmd/zpool_id/Makefile.in1
-rw-r--r--cmd/zpool_layout/Makefile.in1
-rw-r--r--cmd/ztest/Makefile.in1
-rw-r--r--cmd/zvol_id/Makefile.in1
-rw-r--r--config/kernel-discard-granularity.m420
-rw-r--r--config/kernel.m41
-rwxr-xr-xconfigure138
-rw-r--r--dracut/90zfs/Makefile.in1
-rw-r--r--dracut/Makefile.in1
-rw-r--r--etc/Makefile.in1
-rw-r--r--etc/init.d/Makefile.in1
-rw-r--r--etc/zfs/Makefile.in1
-rw-r--r--include/Makefile.in1
-rw-r--r--include/linux/Makefile.in1
-rw-r--r--include/linux/blkdev_compat.h15
-rw-r--r--include/sys/Makefile.in1
-rw-r--r--include/sys/fm/Makefile.in1
-rw-r--r--include/sys/fm/fs/Makefile.in1
-rw-r--r--include/sys/fs/Makefile.in1
-rw-r--r--lib/Makefile.in1
-rw-r--r--lib/libavl/Makefile.in1
-rw-r--r--lib/libefi/Makefile.in1
-rw-r--r--lib/libnvpair/Makefile.in1
-rw-r--r--lib/libshare/Makefile.in1
-rw-r--r--lib/libspl/Makefile.in1
-rw-r--r--lib/libspl/asm-generic/Makefile.in1
-rw-r--r--lib/libspl/asm-i386/Makefile.in1
-rw-r--r--lib/libspl/asm-x86_64/Makefile.in1
-rw-r--r--lib/libspl/include/Makefile.in1
-rw-r--r--lib/libspl/include/ia32/Makefile.in1
-rw-r--r--lib/libspl/include/ia32/sys/Makefile.in1
-rw-r--r--lib/libspl/include/rpc/Makefile.in1
-rw-r--r--lib/libspl/include/sys/Makefile.in1
-rw-r--r--lib/libspl/include/sys/dktp/Makefile.in1
-rw-r--r--lib/libspl/include/sys/sysevent/Makefile.in1
-rw-r--r--lib/libspl/include/util/Makefile.in1
-rw-r--r--lib/libunicode/Makefile.in1
-rw-r--r--lib/libuutil/Makefile.in1
-rw-r--r--lib/libzfs/Makefile.in1
-rw-r--r--lib/libzpool/Makefile.in1
-rw-r--r--man/Makefile.in1
-rw-r--r--man/man5/Makefile.in1
-rw-r--r--man/man8/Makefile.in1
-rw-r--r--module/zfs/zvol.c1
-rw-r--r--scripts/Makefile.in1
-rw-r--r--scripts/zpios-profile/Makefile.in1
-rw-r--r--scripts/zpios-test/Makefile.in1
-rw-r--r--scripts/zpool-config/Makefile.in1
-rw-r--r--scripts/zpool-layout/Makefile.in1
-rw-r--r--udev/Makefile.in1
-rw-r--r--udev/rules.d/Makefile.in1
-rw-r--r--zfs_config.h.in3
61 files changed, 233 insertions, 0 deletions
diff --git a/Makefile.in b/Makefile.in
index 52946a266..a8b6a09f0 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -91,6 +91,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/cmd/Makefile.in b/cmd/Makefile.in
index bd03b3558..3a031e875 100644
--- a/cmd/Makefile.in
+++ b/cmd/Makefile.in
@@ -68,6 +68,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/cmd/mount_zfs/Makefile.in b/cmd/mount_zfs/Makefile.in
index 0a6ca2e09..b0e80aa20 100644
--- a/cmd/mount_zfs/Makefile.in
+++ b/cmd/mount_zfs/Makefile.in
@@ -71,6 +71,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/cmd/vdev_id/Makefile.in b/cmd/vdev_id/Makefile.in
index 4a8ecfd4a..56b1ebe77 100644
--- a/cmd/vdev_id/Makefile.in
+++ b/cmd/vdev_id/Makefile.in
@@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/cmd/zdb/Makefile.in b/cmd/zdb/Makefile.in
index 6842334f5..e55f6adf5 100644
--- a/cmd/zdb/Makefile.in
+++ b/cmd/zdb/Makefile.in
@@ -71,6 +71,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/cmd/zfs/Makefile.in b/cmd/zfs/Makefile.in
index 582604b69..bdd2914d9 100644
--- a/cmd/zfs/Makefile.in
+++ b/cmd/zfs/Makefile.in
@@ -71,6 +71,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/cmd/zinject/Makefile.in b/cmd/zinject/Makefile.in
index 1a8a7837f..d229f81dd 100644
--- a/cmd/zinject/Makefile.in
+++ b/cmd/zinject/Makefile.in
@@ -71,6 +71,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/cmd/zpios/Makefile.in b/cmd/zpios/Makefile.in
index 6bfb81c9e..40db43c30 100644
--- a/cmd/zpios/Makefile.in
+++ b/cmd/zpios/Makefile.in
@@ -71,6 +71,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/cmd/zpool/Makefile.in b/cmd/zpool/Makefile.in
index 9ac1d2e77..74390c423 100644
--- a/cmd/zpool/Makefile.in
+++ b/cmd/zpool/Makefile.in
@@ -71,6 +71,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/cmd/zpool_id/Makefile.in b/cmd/zpool_id/Makefile.in
index 67812174f..c4dc586e2 100644
--- a/cmd/zpool_id/Makefile.in
+++ b/cmd/zpool_id/Makefile.in
@@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/cmd/zpool_layout/Makefile.in b/cmd/zpool_layout/Makefile.in
index c6a2f0db4..d13c2e6bf 100644
--- a/cmd/zpool_layout/Makefile.in
+++ b/cmd/zpool_layout/Makefile.in
@@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/cmd/ztest/Makefile.in b/cmd/ztest/Makefile.in
index 2dbdfd4d7..b4cdc2284 100644
--- a/cmd/ztest/Makefile.in
+++ b/cmd/ztest/Makefile.in
@@ -71,6 +71,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/cmd/zvol_id/Makefile.in b/cmd/zvol_id/Makefile.in
index d16e5b75c..acc243317 100644
--- a/cmd/zvol_id/Makefile.in
+++ b/cmd/zvol_id/Makefile.in
@@ -71,6 +71,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/config/kernel-discard-granularity.m4 b/config/kernel-discard-granularity.m4
new file mode 100644
index 000000000..2c677c909
--- /dev/null
+++ b/config/kernel-discard-granularity.m4
@@ -0,0 +1,20 @@
+dnl #
+dnl # 2.6.33 API change
+dnl # Discard granularity and alignment restrictions may now be set.
+dnl #
+AC_DEFUN([ZFS_AC_KERNEL_DISCARD_GRANULARITY], [
+ AC_MSG_CHECKING([whether ql->discard_granularity is available])
+ ZFS_LINUX_TRY_COMPILE([
+ #include <linux/blkdev.h>
+ ],[
+ struct queue_limits ql __attribute__ ((unused));
+
+ ql.discard_granularity = 0;
+ ],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_DISCARD_GRANULARITY, 1,
+ [ql->discard_granularity is available])
+ ],[
+ AC_MSG_RESULT(no)
+ ])
+])
diff --git a/config/kernel.m4 b/config/kernel.m4
index a40bb5b6c..260ad84f4 100644
--- a/config/kernel.m4
+++ b/config/kernel.m4
@@ -39,6 +39,7 @@ AC_DEFUN([ZFS_AC_CONFIG_KERNEL], [
ZFS_AC_KERNEL_GET_GENDISK
ZFS_AC_KERNEL_RQ_IS_SYNC
ZFS_AC_KERNEL_RQ_FOR_EACH_SEGMENT
+ ZFS_AC_KERNEL_DISCARD_GRANULARITY
ZFS_AC_KERNEL_CONST_XATTR_HANDLER
ZFS_AC_KERNEL_XATTR_HANDLER_GET
ZFS_AC_KERNEL_XATTR_HANDLER_SET
diff --git a/configure b/configure
index 9b97fb427..313e05137 100755
--- a/configure
+++ b/configure
@@ -15369,6 +15369,75 @@ fi
EXTRA_KCFLAGS="$tmp_flags"
+
+ { $as_echo "$as_me:$LINENO: checking whether ql->discard_granularity is available" >&5
+$as_echo_n "checking whether ql->discard_granularity is available... " >&6; }
+
+
+cat confdefs.h - <<_ACEOF >conftest.c
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+
+ #include <linux/blkdev.h>
+
+int
+main (void)
+{
+
+ struct queue_limits ql __attribute__ ((unused));
+
+ ql.discard_granularity = 0;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+
+
+ rm -Rf build && mkdir -p build && touch build/conftest.mod.c
+ echo "obj-m := conftest.o" >build/Makefile
+ modpost_flag=''
+ test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+ if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+
+ { $as_echo "$as_me:$LINENO: result: yes" >&5
+$as_echo "yes" >&6; }
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_DISCARD_GRANULARITY 1
+_ACEOF
+
+
+else
+ $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ { $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+
+
+
+fi
+
+ rm -Rf build
+
+
+
{ $as_echo "$as_me:$LINENO: checking whether super_block uses const struct xattr_hander" >&5
$as_echo_n "checking whether super_block uses const struct xattr_hander... " >&6; }
@@ -22873,6 +22942,75 @@ fi
EXTRA_KCFLAGS="$tmp_flags"
+
+ { $as_echo "$as_me:$LINENO: checking whether ql->discard_granularity is available" >&5
+$as_echo_n "checking whether ql->discard_granularity is available... " >&6; }
+
+
+cat confdefs.h - <<_ACEOF >conftest.c
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+
+ #include <linux/blkdev.h>
+
+int
+main (void)
+{
+
+ struct queue_limits ql __attribute__ ((unused));
+
+ ql.discard_granularity = 0;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+
+
+ rm -Rf build && mkdir -p build && touch build/conftest.mod.c
+ echo "obj-m := conftest.o" >build/Makefile
+ modpost_flag=''
+ test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
+ if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+
+ { $as_echo "$as_me:$LINENO: result: yes" >&5
+$as_echo "yes" >&6; }
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_DISCARD_GRANULARITY 1
+_ACEOF
+
+
+else
+ $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ { $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+
+
+
+fi
+
+ rm -Rf build
+
+
+
{ $as_echo "$as_me:$LINENO: checking whether super_block uses const struct xattr_hander" >&5
$as_echo_n "checking whether super_block uses const struct xattr_hander... " >&6; }
diff --git a/dracut/90zfs/Makefile.in b/dracut/90zfs/Makefile.in
index 956e45860..60fa58509 100644
--- a/dracut/90zfs/Makefile.in
+++ b/dracut/90zfs/Makefile.in
@@ -69,6 +69,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/dracut/Makefile.in b/dracut/Makefile.in
index 0e98a6ca9..cda6b566b 100644
--- a/dracut/Makefile.in
+++ b/dracut/Makefile.in
@@ -68,6 +68,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/etc/Makefile.in b/etc/Makefile.in
index 850bff29c..44d418c4d 100644
--- a/etc/Makefile.in
+++ b/etc/Makefile.in
@@ -68,6 +68,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/etc/init.d/Makefile.in b/etc/init.d/Makefile.in
index 0ddd918ee..559726126 100644
--- a/etc/init.d/Makefile.in
+++ b/etc/init.d/Makefile.in
@@ -69,6 +69,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/etc/zfs/Makefile.in b/etc/zfs/Makefile.in
index b9fbd1727..fe4596f09 100644
--- a/etc/zfs/Makefile.in
+++ b/etc/zfs/Makefile.in
@@ -69,6 +69,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/include/Makefile.in b/include/Makefile.in
index 4bacc977d..da7c0018f 100644
--- a/include/Makefile.in
+++ b/include/Makefile.in
@@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/include/linux/Makefile.in b/include/linux/Makefile.in
index cdf0e1c62..aa5651d3e 100644
--- a/include/linux/Makefile.in
+++ b/include/linux/Makefile.in
@@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/include/linux/blkdev_compat.h b/include/linux/blkdev_compat.h
index bd1b2bf54..a5294ceba 100644
--- a/include/linux/blkdev_compat.h
+++ b/include/linux/blkdev_compat.h
@@ -433,6 +433,21 @@ bio_set_flags_failfast(struct block_device *bdev, int *flags)
#endif
/*
+ * 2.6.33 API change
+ * Discard granularity and alignment restrictions may now be set. For
+ * older kernels which do not support this it is safe to skip it.
+ */
+#ifdef HAVE_DISCARD_GRANULARITY
+static inline void
+blk_queue_discard_granularity(struct request_queue *q, unsigned int dg)
+{
+ q->limits.discard_granularity = dg;
+}
+#else
+#define blk_queue_discard_granularity(x, dg) ((void)0)
+#endif /* HAVE_DISCARD_GRANULARITY */
+
+/*
* Default Linux IO Scheduler,
* Setting the scheduler to noop will allow the Linux IO scheduler to
* still perform front and back merging, while leaving the request
diff --git a/include/sys/Makefile.in b/include/sys/Makefile.in
index e6e880bab..be2aec909 100644
--- a/include/sys/Makefile.in
+++ b/include/sys/Makefile.in
@@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/include/sys/fm/Makefile.in b/include/sys/fm/Makefile.in
index 9d2aff60b..9193af56b 100644
--- a/include/sys/fm/Makefile.in
+++ b/include/sys/fm/Makefile.in
@@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/include/sys/fm/fs/Makefile.in b/include/sys/fm/fs/Makefile.in
index feac8f9fb..8d7829d83 100644
--- a/include/sys/fm/fs/Makefile.in
+++ b/include/sys/fm/fs/Makefile.in
@@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/include/sys/fs/Makefile.in b/include/sys/fs/Makefile.in
index c1bff97bb..7529f0682 100644
--- a/include/sys/fs/Makefile.in
+++ b/include/sys/fs/Makefile.in
@@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/lib/Makefile.in b/lib/Makefile.in
index 87dfb2fba..1ad953932 100644
--- a/lib/Makefile.in
+++ b/lib/Makefile.in
@@ -68,6 +68,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/lib/libavl/Makefile.in b/lib/libavl/Makefile.in
index 26dacbec9..f5311c3c0 100644
--- a/lib/libavl/Makefile.in
+++ b/lib/libavl/Makefile.in
@@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/lib/libefi/Makefile.in b/lib/libefi/Makefile.in
index e9b8f9559..7a60887d4 100644
--- a/lib/libefi/Makefile.in
+++ b/lib/libefi/Makefile.in
@@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/lib/libnvpair/Makefile.in b/lib/libnvpair/Makefile.in
index 0f36765c1..2e0fcf9e1 100644
--- a/lib/libnvpair/Makefile.in
+++ b/lib/libnvpair/Makefile.in
@@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/lib/libshare/Makefile.in b/lib/libshare/Makefile.in
index 811b05101..081ce0992 100644
--- a/lib/libshare/Makefile.in
+++ b/lib/libshare/Makefile.in
@@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/lib/libspl/Makefile.in b/lib/libspl/Makefile.in
index 88ded3bb9..89fe88ac4 100644
--- a/lib/libspl/Makefile.in
+++ b/lib/libspl/Makefile.in
@@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/lib/libspl/asm-generic/Makefile.in b/lib/libspl/asm-generic/Makefile.in
index b8ba11408..b7059c02f 100644
--- a/lib/libspl/asm-generic/Makefile.in
+++ b/lib/libspl/asm-generic/Makefile.in
@@ -69,6 +69,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/lib/libspl/asm-i386/Makefile.in b/lib/libspl/asm-i386/Makefile.in
index 7cd6977b2..8e7e590fe 100644
--- a/lib/libspl/asm-i386/Makefile.in
+++ b/lib/libspl/asm-i386/Makefile.in
@@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/lib/libspl/asm-x86_64/Makefile.in b/lib/libspl/asm-x86_64/Makefile.in
index 083fee5d5..3df767a15 100644
--- a/lib/libspl/asm-x86_64/Makefile.in
+++ b/lib/libspl/asm-x86_64/Makefile.in
@@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/lib/libspl/include/Makefile.in b/lib/libspl/include/Makefile.in
index 0c6fdcf69..b81c3dbe8 100644
--- a/lib/libspl/include/Makefile.in
+++ b/lib/libspl/include/Makefile.in
@@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/lib/libspl/include/ia32/Makefile.in b/lib/libspl/include/ia32/Makefile.in
index 02186ac39..23ffb4dc1 100644
--- a/lib/libspl/include/ia32/Makefile.in
+++ b/lib/libspl/include/ia32/Makefile.in
@@ -68,6 +68,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/lib/libspl/include/ia32/sys/Makefile.in b/lib/libspl/include/ia32/sys/Makefile.in
index f9e0236bc..2b2c230f9 100644
--- a/lib/libspl/include/ia32/sys/Makefile.in
+++ b/lib/libspl/include/ia32/sys/Makefile.in
@@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/lib/libspl/include/rpc/Makefile.in b/lib/libspl/include/rpc/Makefile.in
index b601bc125..3752b74df 100644
--- a/lib/libspl/include/rpc/Makefile.in
+++ b/lib/libspl/include/rpc/Makefile.in
@@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/lib/libspl/include/sys/Makefile.in b/lib/libspl/include/sys/Makefile.in
index 8258f0fe0..fec69dfe7 100644
--- a/lib/libspl/include/sys/Makefile.in
+++ b/lib/libspl/include/sys/Makefile.in
@@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/lib/libspl/include/sys/dktp/Makefile.in b/lib/libspl/include/sys/dktp/Makefile.in
index 9ea3a27c2..3932adcba 100644
--- a/lib/libspl/include/sys/dktp/Makefile.in
+++ b/lib/libspl/include/sys/dktp/Makefile.in
@@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/lib/libspl/include/sys/sysevent/Makefile.in b/lib/libspl/include/sys/sysevent/Makefile.in
index 62b876137..7d784f360 100644
--- a/lib/libspl/include/sys/sysevent/Makefile.in
+++ b/lib/libspl/include/sys/sysevent/Makefile.in
@@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/lib/libspl/include/util/Makefile.in b/lib/libspl/include/util/Makefile.in
index cf37f1639..e32a340d2 100644
--- a/lib/libspl/include/util/Makefile.in
+++ b/lib/libspl/include/util/Makefile.in
@@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/lib/libunicode/Makefile.in b/lib/libunicode/Makefile.in
index 4ca968241..971a2bc5e 100644
--- a/lib/libunicode/Makefile.in
+++ b/lib/libunicode/Makefile.in
@@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/lib/libuutil/Makefile.in b/lib/libuutil/Makefile.in
index a90c890cb..64b2c3005 100644
--- a/lib/libuutil/Makefile.in
+++ b/lib/libuutil/Makefile.in
@@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/lib/libzfs/Makefile.in b/lib/libzfs/Makefile.in
index c2c1d2e4a..f22b6f0a5 100644
--- a/lib/libzfs/Makefile.in
+++ b/lib/libzfs/Makefile.in
@@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/lib/libzpool/Makefile.in b/lib/libzpool/Makefile.in
index a94b7e1cd..b0c001545 100644
--- a/lib/libzpool/Makefile.in
+++ b/lib/libzpool/Makefile.in
@@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/man/Makefile.in b/man/Makefile.in
index 1996ca2e5..9c333675e 100644
--- a/man/Makefile.in
+++ b/man/Makefile.in
@@ -68,6 +68,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/man/man5/Makefile.in b/man/man5/Makefile.in
index b0346ccfe..ad3c16f17 100644
--- a/man/man5/Makefile.in
+++ b/man/man5/Makefile.in
@@ -68,6 +68,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/man/man8/Makefile.in b/man/man8/Makefile.in
index c91894424..5412e744f 100644
--- a/man/man8/Makefile.in
+++ b/man/man8/Makefile.in
@@ -68,6 +68,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/module/zfs/zvol.c b/module/zfs/zvol.c
index 32e4f3c1e..07bda6dba 100644
--- a/module/zfs/zvol.c
+++ b/module/zfs/zvol.c
@@ -1245,6 +1245,7 @@ __zvol_create_minor(const char *name)
#ifdef HAVE_BLK_QUEUE_DISCARD
blk_queue_max_discard_sectors(zv->zv_queue,
(zvol_max_discard_blocks * zv->zv_volblocksize) >> 9);
+ blk_queue_discard_granularity(zv->zv_queue, zv->zv_volblocksize);
queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, zv->zv_queue);
#endif
#ifdef HAVE_BLK_QUEUE_NONROT
diff --git a/scripts/Makefile.in b/scripts/Makefile.in
index 3bc46fcbf..73c96feb1 100644
--- a/scripts/Makefile.in
+++ b/scripts/Makefile.in
@@ -69,6 +69,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/scripts/zpios-profile/Makefile.in b/scripts/zpios-profile/Makefile.in
index c51db4236..2533fa1c7 100644
--- a/scripts/zpios-profile/Makefile.in
+++ b/scripts/zpios-profile/Makefile.in
@@ -69,6 +69,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/scripts/zpios-test/Makefile.in b/scripts/zpios-test/Makefile.in
index c05e18b9a..cbcf1df07 100644
--- a/scripts/zpios-test/Makefile.in
+++ b/scripts/zpios-test/Makefile.in
@@ -69,6 +69,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/scripts/zpool-config/Makefile.in b/scripts/zpool-config/Makefile.in
index 17043188e..f1ec2f829 100644
--- a/scripts/zpool-config/Makefile.in
+++ b/scripts/zpool-config/Makefile.in
@@ -69,6 +69,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/scripts/zpool-layout/Makefile.in b/scripts/zpool-layout/Makefile.in
index 1f82746ab..81e036d63 100644
--- a/scripts/zpool-layout/Makefile.in
+++ b/scripts/zpool-layout/Makefile.in
@@ -69,6 +69,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/udev/Makefile.in b/udev/Makefile.in
index 33b2c5852..b961f0f17 100644
--- a/udev/Makefile.in
+++ b/udev/Makefile.in
@@ -68,6 +68,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/udev/rules.d/Makefile.in b/udev/rules.d/Makefile.in
index f0c78e091..846ca5944 100644
--- a/udev/rules.d/Makefile.in
+++ b/udev/rules.d/Makefile.in
@@ -69,6 +69,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-create-umode-t.m4 \
$(top_srcdir)/config/kernel-d-make-root.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
+ $(top_srcdir)/config/kernel-discard-granularity.m4 \
$(top_srcdir)/config/kernel-encode-fh-inode.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fallocate.m4 \
diff --git a/zfs_config.h.in b/zfs_config.h.in
index 15f5a5cae..260bd5ab7 100644
--- a/zfs_config.h.in
+++ b/zfs_config.h.in
@@ -120,6 +120,9 @@
/* xattr_handler->set() wants dentry */
#undef HAVE_DENTRY_XATTR_SET
+/* ql->discard_granularity is available */
+#undef HAVE_DISCARD_GRANULARITY
+
/* Define to 1 if you have the <dlfcn.h> header file. */
#undef HAVE_DLFCN_H