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In uma_startup_count() handle special case when zone will fit into

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single slab, but with alignment adjustment it won't. Again, when
there is only one item in a slab alignment can be ignored. See
previous revision of this file for more info.

PR:		227116
This commit is contained in:
glebius 2018-04-02 05:14:31 +00:00
parent b8ac450ecc
commit f1818db2fc
1 changed files with 3 additions and 1 deletions
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4
sys/vm/uma_core.c
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@ -1828,9 +1828,11 @@ uma_startup_count(int vm_zones)
#endif
/* Memory for the rest of startup zones, UMA and VM, ... */
if (zsize > UMA_SLAB_SIZE)
if (zsize > UMA_SLAB_SPACE)
pages += (zones + vm_zones) *
howmany(roundup2(zsize, UMA_BOOT_ALIGN), UMA_SLAB_SIZE);
else if (roundup2(zsize, UMA_BOOT_ALIGN) > UMA_SLAB_SPACE)
pages += zones;
else
pages += howmany(zones,
UMA_SLAB_SPACE / roundup2(zsize, UMA_BOOT_ALIGN));