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Linux 3.14 compat: Immutable biovec changes in vdev_disk.c

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bi_sector, bi_size and bi_idx are moved from bio to bio->bi_iter.
This patch creates BIO_BI_*(bio) macros to hide the differences.

Signed-off-by: Chunwei Chen <tuxoko@gmail.com>
Signed-off-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #2124
This commit is contained in:
Chunwei Chen
2014-03-28 15:08:21 +08:00
committed by Brian Behlendorf
parent 408ec0d2e1
commit d4541210f3
4 changed files with 36 additions and 5 deletions
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config/kernel-bio-bvec-iter.m4
+20
View File
@@ -0,0 +1,20 @@
dnl #
dnl # 3.14 API change,
dnl # Immutable biovecs. A number of fields of struct bio are moved to
dnl # struct bvec_iter.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BIO_BVEC_ITER], [
AC_MSG_CHECKING([whether bio has bi_iter])
ZFS_LINUX_TRY_COMPILE([
#include <linux/bio.h>
],[
struct bio bio;
bio.bi_iter.bi_sector = 0;
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BIO_BVEC_ITER, 1, [bio has bi_iter])
],[
AC_MSG_RESULT(no)
])
])
config/kernel.m4
+1
View File
@@ -17,6 +17,7 @@ AC_DEFUN([ZFS_AC_CONFIG_KERNEL], [
ZFS_AC_KERNEL_INVALIDATE_BDEV_ARGS
ZFS_AC_KERNEL_BDEV_LOGICAL_BLOCK_SIZE
ZFS_AC_KERNEL_BDEV_PHYSICAL_BLOCK_SIZE
ZFS_AC_KERNEL_BIO_BVEC_ITER
ZFS_AC_KERNEL_BIO_FAILFAST
ZFS_AC_KERNEL_BIO_FAILFAST_DTD
ZFS_AC_KERNEL_REQ_FAILFAST_MASK