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zfs: Update use of UMA-related symbols in arc_available_memory

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da76d34 repurposed the use of UMA_MD_SMALL_ALLOC in a way that breaks
arc_available_memory on -CURRENT. This change ensures that
arc_available_memory uses the new symbol while maintaining compatibility
with older FreeBSD releases. This change was submitted to upstream
as well.

Approved by:	markj (mentor)
Fixes:	da76d34
This commit is contained in:
Bojan Novković 2024-05-27 15:28:03 +02:00
parent e24ff5c99b
commit 4c053c17f2
1 changed files with 1 additions and 1 deletions
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sys/contrib/openzfs/module/os/freebsd/zfs/arc_os.c
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@ -89,7 +89,7 @@ arc_available_memory(void)
if (n < lowest) {
lowest = n;
}
#if defined(__i386) || !defined(UMA_MD_SMALL_ALLOC)
#if !defined(UMA_MD_SMALL_ALLOC) && !defined(UMA_USE_DMAP)
/*
* If we're on an i386 platform, it's possible that we'll exhaust the
* kernel heap space before we ever run out of available physical