Matthew Ahrens f1512ee61e Illumos 5027 - zfs large block support ... 5027 zfs large block support Reviewed by: Alek Pinchuk <pinchuk.alek@gmail.com> Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Josef 'Jeff' Sipek <josef.sipek@nexenta.com> Reviewed by: Richard Elling <richard.elling@richardelling.com> Reviewed by: Saso Kiselkov <skiselkov.ml@gmail.com> Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov> Approved by: Dan McDonald <danmcd@omniti.com> References: https://www.illumos.org/issues/5027 https://github.com/illumos/illumos-gate/commit/b515258 Porting Notes: * Included in this patch is a tiny ISP2() cleanup in zio_init() from Illumos 5255. * Unlike the upstream Illumos commit this patch does not impose an arbitrary 128K block size limit on volumes. Volumes, like filesystems, are limited by the zfs_max_recordsize=1M module option. * By default the maximum record size is limited to 1M by the module option zfs_max_recordsize. This value may be safely increased up to 16M which is the largest block size supported by the on-disk format. At the moment, 1M blocks clearly offer a significant performance improvement but the benefits of going beyond this for the majority of workloads are less clear. * The illumos version of this patch increased DMU_MAX_ACCESS to 32M. This was determined not to be large enough when using 16M blocks because the zfs_make_xattrdir() function will fail (EFBIG) when assigning a TX. This was immediately observed under Linux because all newly created files must have a security xattr created and that was failing. Therefore, we've set DMU_MAX_ACCESS to 64M. * On 32-bit platforms a hard limit of 1M is set for blocks due to the limited virtual address space. We should be able to relax this one the ABD patches are merged. Ported-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #354		2015-05-11 12:23:16 -07:00
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Makefile.in	Add script for builtin module building.	2012-07-26 13:45:09 -07:00
zfs_comutil.c	Illumos #2882, #2883, #2900	2013-09-04 15:49:00 -07:00
zfs_deleg.c	Change ASSERT(!"...") to cmn_err(CE_PANIC, ...)	2015-03-03 13:22:21 -08:00
zfs_fletcher.c	Add linux kernel module support	2010-08-31 13:41:58 -07:00
zfs_namecheck.c	Illumos 4368, 4369.	2014-07-29 10:55:29 -07:00
zfs_prop.c	Illumos 5027 - zfs large block support	2015-05-11 12:23:16 -07:00
zfs_uio.c	cstyle: Resolve C style issues	2013-12-18 16:46:35 -08:00
zpool_prop.c	Illumos 5027 - zfs large block support	2015-05-11 12:23:16 -07:00
zprop_common.c	Change KM_PUSHPAGE -> KM_SLEEP	2015-01-16 14:41:26 -08:00