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authorZhenlei Huang <zlei@FreeBSD.org>2023-10-19 17:00:31 +0000
committerZhenlei Huang <zlei@FreeBSD.org>2023-10-23 10:12:21 +0000
commite53f8ca323e8e563d4b55883fc3544bea75aab29 (patch)
treeacef0c4aa06167e500c47e420ff8b1613c4bbb6d
parentd8aaf09792338fae07b9618665ea9612b7b92a6e (diff)
downloadsrc-e53f8ca323e8e563d4b55883fc3544bea75aab29.tar.gz
src-e53f8ca323e8e563d4b55883fc3544bea75aab29.zip
pmap: Prefer consistent naming for loader tunable
The sysctl knob 'vm.pmap.pv_entry_max' becomes a loader tunable since 7ff48af7040f (Allow a specific setting for pv entries) but is fetched from system environment 'vm.pmap.pv_entries'. That is inconsistent and obscure. This reverts 36e1b9702e21 (Correct the tunable name in the message). PR: 231577 Reviewed by: jhibbits, alc, kib MFC after: 3 days Differential Revision: https://reviews.freebsd.org/D42274 (cherry picked from commit 02320f64209563e35fa371fc5eac94067f688f7f)
-rw-r--r--sys/arm/arm/pmap-v6.c4
-rw-r--r--sys/i386/i386/pmap.c4
-rw-r--r--sys/powerpc/booke/pmap.c2
3 files changed, 5 insertions, 5 deletions
diff --git a/sys/arm/arm/pmap-v6.c b/sys/arm/arm/pmap-v6.c
index 719851432203..92e992a4b25e 100644
--- a/sys/arm/arm/pmap-v6.c
+++ b/sys/arm/arm/pmap-v6.c
@@ -1750,7 +1750,7 @@ pmap_init(void)
*/
TUNABLE_INT_FETCH("vm.pmap.shpgperproc", &shpgperproc);
pv_entry_max = shpgperproc * maxproc + vm_cnt.v_page_count;
- TUNABLE_INT_FETCH("vm.pmap.pv_entries", &pv_entry_max);
+ TUNABLE_INT_FETCH("vm.pmap.pv_entry_max", &pv_entry_max);
pv_entry_max = roundup(pv_entry_max, _NPCPV);
pv_entry_high_water = 9 * (pv_entry_max / 10);
@@ -3012,7 +3012,7 @@ get_pv_entry(pmap_t pmap, boolean_t try)
if (ratecheck(&lastprint, &printinterval))
printf("Approaching the limit on PV entries, consider "
"increasing either the vm.pmap.shpgperproc or the "
- "vm.pmap.pv_entries tunable.\n");
+ "vm.pmap.pv_entry_max tunable.\n");
retry:
pc = TAILQ_FIRST(&pmap->pm_pvchunk);
if (pc != NULL) {
diff --git a/sys/i386/i386/pmap.c b/sys/i386/i386/pmap.c
index 4198849b1a5a..67810700e6ef 100644
--- a/sys/i386/i386/pmap.c
+++ b/sys/i386/i386/pmap.c
@@ -1006,7 +1006,7 @@ __CONCAT(PMTYPE, init)(void)
*/
TUNABLE_INT_FETCH("vm.pmap.shpgperproc", &shpgperproc);
pv_entry_max = shpgperproc * maxproc + vm_cnt.v_page_count;
- TUNABLE_INT_FETCH("vm.pmap.pv_entries", &pv_entry_max);
+ TUNABLE_INT_FETCH("vm.pmap.pv_entry_max", &pv_entry_max);
pv_entry_max = roundup(pv_entry_max, _NPCPV);
pv_entry_high_water = 9 * (pv_entry_max / 10);
@@ -2515,7 +2515,7 @@ get_pv_entry(pmap_t pmap, boolean_t try)
if (ratecheck(&lastprint, &printinterval))
printf("Approaching the limit on PV entries, consider "
"increasing either the vm.pmap.shpgperproc or the "
- "vm.pmap.pv_entries tunable.\n");
+ "vm.pmap.pv_entry_max tunable.\n");
retry:
pc = TAILQ_FIRST(&pmap->pm_pvchunk);
if (pc != NULL) {
diff --git a/sys/powerpc/booke/pmap.c b/sys/powerpc/booke/pmap.c
index fe6b95eda085..f41ea24cd30c 100644
--- a/sys/powerpc/booke/pmap.c
+++ b/sys/powerpc/booke/pmap.c
@@ -1069,7 +1069,7 @@ mmu_booke_init(void)
TUNABLE_INT_FETCH("vm.pmap.shpgperproc", &shpgperproc);
pv_entry_max = shpgperproc * maxproc + vm_cnt.v_page_count;
- TUNABLE_INT_FETCH("vm.pmap.pv_entries", &pv_entry_max);
+ TUNABLE_INT_FETCH("vm.pmap.pv_entry_max", &pv_entry_max);
pv_entry_high_water = 9 * (pv_entry_max / 10);
uma_zone_reserve_kva(pvzone, pv_entry_max);