1dnl # 2dnl # Check for generic io accounting interface. 3dnl # 4AC_DEFUN([ZFS_AC_KERNEL_SRC_GENERIC_IO_ACCT], [ 5 ZFS_LINUX_TEST_SRC([bdev_io_acct_63], [ 6 #include <linux/blkdev.h> 7 ], [ 8 struct block_device *bdev = NULL; 9 struct bio *bio = NULL; 10 unsigned long passed_time = 0; 11 unsigned long start_time; 12 13 start_time = bdev_start_io_acct(bdev, bio_op(bio), 14 passed_time); 15 bdev_end_io_acct(bdev, bio_op(bio), bio_sectors(bio), start_time); 16 ]) 17 18 ZFS_LINUX_TEST_SRC([bdev_io_acct_old], [ 19 #include <linux/blkdev.h> 20 ], [ 21 struct block_device *bdev = NULL; 22 struct bio *bio = NULL; 23 unsigned long passed_time = 0; 24 unsigned long start_time; 25 26 start_time = bdev_start_io_acct(bdev, bio_sectors(bio), 27 bio_op(bio), passed_time); 28 bdev_end_io_acct(bdev, bio_op(bio), start_time); 29 ]) 30 31 ZFS_LINUX_TEST_SRC([disk_io_acct], [ 32 #include <linux/blkdev.h> 33 ], [ 34 struct gendisk *disk = NULL; 35 struct bio *bio = NULL; 36 unsigned long start_time; 37 38 start_time = disk_start_io_acct(disk, bio_sectors(bio), bio_op(bio)); 39 disk_end_io_acct(disk, bio_op(bio), start_time); 40 ]) 41 42 ZFS_LINUX_TEST_SRC([bio_io_acct], [ 43 #include <linux/blkdev.h> 44 ], [ 45 struct bio *bio = NULL; 46 unsigned long start_time; 47 48 start_time = bio_start_io_acct(bio); 49 bio_end_io_acct(bio, start_time); 50 ]) 51 52 ZFS_LINUX_TEST_SRC([generic_acct_4args], [ 53 #include <linux/bio.h> 54 55 void (*generic_start_io_acct_f)(struct request_queue *, int, 56 unsigned long, struct hd_struct *) = &generic_start_io_acct; 57 void (*generic_end_io_acct_f)(struct request_queue *, int, 58 struct hd_struct *, unsigned long) = &generic_end_io_acct; 59 ], [ 60 generic_start_io_acct(NULL, 0, 0, NULL); 61 generic_end_io_acct(NULL, 0, NULL, 0); 62 ]) 63]) 64 65AC_DEFUN([ZFS_AC_KERNEL_GENERIC_IO_ACCT], [ 66 dnl # 67 dnl # Linux 6.3, and then backports thereof, changed 68 dnl # the signatures on bdev_start_io_acct/bdev_end_io_acct 69 dnl # 70 AC_MSG_CHECKING([whether 6.3+ bdev_*_io_acct() are available]) 71 ZFS_LINUX_TEST_RESULT([bdev_io_acct_63], [ 72 AC_MSG_RESULT(yes) 73 AC_DEFINE(HAVE_BDEV_IO_ACCT_63, 1, [bdev_*_io_acct() available]) 74 ], [ 75 AC_MSG_RESULT(no) 76 77 dnl # 78 dnl # 5.19 API, 79 dnl # 80 dnl # disk_start_io_acct() and disk_end_io_acct() have been replaced by 81 dnl # bdev_start_io_acct() and bdev_end_io_acct(). 82 dnl # 83 AC_MSG_CHECKING([whether pre-6.3 bdev_*_io_acct() are available]) 84 ZFS_LINUX_TEST_RESULT([bdev_io_acct_old], [ 85 AC_MSG_RESULT(yes) 86 AC_DEFINE(HAVE_BDEV_IO_ACCT_OLD, 1, [bdev_*_io_acct() available]) 87 ], [ 88 AC_MSG_RESULT(no) 89 dnl # 90 dnl # 5.12 API, 91 dnl # 92 dnl # bio_start_io_acct() and bio_end_io_acct() became GPL-exported 93 dnl # so use disk_start_io_acct() and disk_end_io_acct() instead 94 dnl # 95 AC_MSG_CHECKING([whether generic disk_*_io_acct() are available]) 96 ZFS_LINUX_TEST_RESULT([disk_io_acct], [ 97 AC_MSG_RESULT(yes) 98 AC_DEFINE(HAVE_DISK_IO_ACCT, 1, [disk_*_io_acct() available]) 99 ], [ 100 AC_MSG_RESULT(no) 101 102 dnl # 103 dnl # 5.7 API, 104 dnl # 105 dnl # Added bio_start_io_acct() and bio_end_io_acct() helpers. 106 dnl # 107 AC_MSG_CHECKING([whether generic bio_*_io_acct() are available]) 108 ZFS_LINUX_TEST_RESULT([bio_io_acct], [ 109 AC_MSG_RESULT(yes) 110 AC_DEFINE(HAVE_BIO_IO_ACCT, 1, [bio_*_io_acct() available]) 111 ], [ 112 AC_MSG_RESULT(no) 113 114 dnl # 115 dnl # 4.14 API, 116 dnl # 117 dnl # generic_start_io_acct/generic_end_io_acct now require 118 dnl # request_queue to be provided. No functional changes, 119 dnl # but preparation for inflight accounting. 120 dnl # 121 AC_MSG_CHECKING([whether generic_*_io_acct wants 4 args]) 122 ZFS_LINUX_TEST_RESULT_SYMBOL([generic_acct_4args], 123 [generic_start_io_acct], [block/bio.c], [ 124 AC_MSG_RESULT(yes) 125 AC_DEFINE(HAVE_GENERIC_IO_ACCT_4ARG, 1, 126 [generic_*_io_acct() 4 arg available]) 127 ], [ 128 AC_MSG_RESULT(no) 129 ]) 130 ]) 131 ]) 132 ]) 133 ]) 134]) 135