diff options
| author | Isaac Huang <[email protected]> | 2016-09-29 14:13:31 -0600 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2016-09-29 13:13:31 -0700 |
| commit | e8ac4557af67a46a2cb90bd7db4d426c0b358d51 (patch) | |
| tree | 4ce1e63abedea5fc71d3dde6415cebbdf806f080 /config/kernel.m4 | |
| parent | 8a1cf1a5608151635b67d89613e51427b177dab0 (diff) | |
Explicit block device plugging when submitting multiple BIOs
Without plugging, the default 'noop' scheduler will not merge
the BIOs which are part of a large ZIO.
Reviewed-by: Andreas Dilger <[email protected]>
Reviewed-by: Brian Behlendorf <[email protected]>
Signed-off-by: Isaac Huang <[email protected]>
Closes #5181
Diffstat (limited to 'config/kernel.m4')
| -rw-r--r-- | config/kernel.m4 | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/config/kernel.m4 b/config/kernel.m4 index 798f3511b..c53e61157 100644 --- a/config/kernel.m4 +++ b/config/kernel.m4 @@ -34,6 +34,7 @@ AC_DEFUN([ZFS_AC_CONFIG_KERNEL], [ ZFS_AC_KERNEL_BLK_QUEUE_MAX_HW_SECTORS ZFS_AC_KERNEL_BLK_QUEUE_MAX_SEGMENTS ZFS_AC_KERNEL_BLK_QUEUE_HAVE_BIO_RW_UNPLUG + ZFS_AC_KERNEL_BLK_QUEUE_HAVE_BLK_PLUG ZFS_AC_KERNEL_GET_DISK_RO ZFS_AC_KERNEL_GET_GENDISK ZFS_AC_KERNEL_DISCARD_GRANULARITY |