diff options
Diffstat (limited to 'config/kernel-generic_io_acct.m4')
| -rw-r--r-- | config/kernel-generic_io_acct.m4 | 47 |
1 files changed, 35 insertions, 12 deletions
diff --git a/config/kernel-generic_io_acct.m4 b/config/kernel-generic_io_acct.m4 index 423b3e5a3521..e4ab503d5e1c 100644 --- a/config/kernel-generic_io_acct.m4 +++ b/config/kernel-generic_io_acct.m4 @@ -2,6 +2,16 @@ dnl # dnl # Check for generic io accounting interface. dnl # AC_DEFUN([ZFS_AC_KERNEL_SRC_GENERIC_IO_ACCT], [ + ZFS_LINUX_TEST_SRC([bio_io_acct], [ + #include <linux/blkdev.h> + ], [ + struct bio *bio = NULL; + unsigned long start_time; + + start_time = bio_start_io_acct(bio); + bio_end_io_acct(bio, start_time); + ]) + ZFS_LINUX_TEST_SRC([generic_acct_3args], [ #include <linux/bio.h> @@ -29,36 +39,49 @@ AC_DEFUN([ZFS_AC_KERNEL_SRC_GENERIC_IO_ACCT], [ AC_DEFUN([ZFS_AC_KERNEL_GENERIC_IO_ACCT], [ dnl # - dnl # 3.19 API addition + dnl # 5.7 API, dnl # - dnl # torvalds/linux@394ffa50 allows us to increment iostat - dnl # counters without generic_make_request(). + dnl # Added bio_start_io_acct() and bio_end_io_acct() helpers. dnl # - AC_MSG_CHECKING([whether generic IO accounting wants 3 args]) - ZFS_LINUX_TEST_RESULT_SYMBOL([generic_acct_3args], - [generic_start_io_acct], [block/bio.c], [ + AC_MSG_CHECKING([whether generic bio_*_io_acct() are available]) + ZFS_LINUX_TEST_RESULT([bio_io_acct], [ AC_MSG_RESULT(yes) - AC_DEFINE(HAVE_GENERIC_IO_ACCT_3ARG, 1, - [generic_start_io_acct()/generic_end_io_acct() available]) + AC_DEFINE(HAVE_BIO_IO_ACCT, 1, [bio_*_io_acct() available]) ], [ AC_MSG_RESULT(no) dnl # - dnl # Linux 4.14 API, + dnl # 4.14 API, dnl # dnl # generic_start_io_acct/generic_end_io_acct now require dnl # request_queue to be provided. No functional changes, dnl # but preparation for inflight accounting. dnl # - AC_MSG_CHECKING([whether generic IO accounting wants 4 args]) + AC_MSG_CHECKING([whether generic_*_io_acct wants 4 args]) ZFS_LINUX_TEST_RESULT_SYMBOL([generic_acct_4args], [generic_start_io_acct], [block/bio.c], [ AC_MSG_RESULT(yes) AC_DEFINE(HAVE_GENERIC_IO_ACCT_4ARG, 1, - [generic_start_io_acct()/generic_end_io_acct() ] - [4 arg available]) + [generic_*_io_acct() 4 arg available]) ], [ AC_MSG_RESULT(no) + + dnl # + dnl # 3.19 API addition + dnl # + dnl # torvalds/linux@394ffa50 allows us to increment + dnl # iostat counters without generic_make_request(). + dnl # + AC_MSG_CHECKING( + [whether generic_*_io_acct wants 3 args]) + ZFS_LINUX_TEST_RESULT_SYMBOL([generic_acct_3args], + [generic_start_io_acct], [block/bio.c], [ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_GENERIC_IO_ACCT_3ARG, 1, + [generic_*_io_acct() 3 arg available]) + ], [ + AC_MSG_RESULT(no) + ]) ]) ]) ]) |