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linux/kmem: remove HAVE_ATOMIC64_T and kmem_alloc_used wrappers

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Seems like we haven't set it since the SPL was pulled into the main ZFS
tree. In removing the define, I've taken the 64-bit version (ie the one
that _hasn't_ been running since back then) because it looks like its
closer to the intended width by the way its used.

Since the macros ar eno longer needed as a selector, pull those too.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Sponsored-by: https://despairlabs.com/sponsor/
Closes #17551
This commit is contained in:
Rob Norris
2025-07-18 15:18:33 +10:00
committed by Brian Behlendorf
parent 1c483cf3d0
commit 9292071565
3 changed files with 11 additions and 36 deletions
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module/os/linux/spl/spl-proc.c
+1 -9
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@@ -82,11 +82,7 @@ proc_domemused(CONST_CTL_TABLE *table, int write,
if (write) {
*ppos += *lenp;
} else {
#ifdef HAVE_ATOMIC64_T
val = atomic64_read((atomic64_t *)table->data);
#else
val = atomic_read((atomic_t *)table->data);
#endif /* HAVE_ATOMIC64_T */
rc = proc_doulongvec_minmax(&dummy, write, buffer, lenp, ppos);
}
@@ -315,18 +311,14 @@ static struct ctl_table spl_kmem_table[] = {
{
.procname = "kmem_used",
.data = &kmem_alloc_used,
#ifdef HAVE_ATOMIC64_T
.maxlen = sizeof (atomic64_t),
#else
.maxlen = sizeof (atomic_t),
#endif /* HAVE_ATOMIC64_T */
.mode = 0444,
.proc_handler = &proc_domemused,
},
{
.procname = "kmem_max",
.data = &kmem_alloc_max,
.maxlen = sizeof (unsigned long),
.maxlen = sizeof (uint64_t),
.extra1 = &table_min,
.extra2 = &table_max,
.mode = 0444,