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scst_vdisk: don't report unmap alignment, if it is equal to unmap granularity

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git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6930 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Vladislav Bolkhovitin
2016-08-03 02:49:31 +00:00
parent 830fe47378
commit ce52affcdf
1 changed files with 2 additions and 0 deletions
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2
scst/src/dev_handlers/scst_vdisk.c
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@@ -1062,6 +1062,8 @@ check:
(defined(RHEL_MAJOR) && RHEL_MAJOR -0 >= 6)
virt_dev->unmap_opt_gran = q->limits.discard_granularity >> block_shift;
virt_dev->unmap_align = q->limits.discard_alignment >> block_shift;
if (virt_dev->unmap_opt_gran == virt_dev->unmap_align)
virt_dev->unmap_align = 0;
virt_dev->unmap_max_lba_cnt = q->limits.max_discard_sectors >> (block_shift - 9);
virt_dev->discard_zeroes_data = q->limits.discard_zeroes_data;
#else