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| author | Konstantin Belousov <kib@FreeBSD.org> | 2021-04-04 16:28:14 +0000 |
|---|---|---|
| committer | Konstantin Belousov <kib@FreeBSD.org> | 2021-04-04 17:39:06 +0000 |
| commit | 89619b747bcff379dca98e975a98865a45366417 (patch) | |
| tree | d96ed94b0d280799cd1d187ee84e84fc75aaf7b4 /sys/vm/vm_kern.c | |
| parent | 51a7be5f6036ebd47c8b3f704d52e7ec3f837114 (diff) | |
| download | src-89619b747bcff379dca98e975a98865a45366417.tar.gz src-89619b747bcff379dca98e975a98865a45366417.zip | |
Add sysctl debug.uma_reclaim
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Diffstat (limited to 'sys/vm/vm_kern.c')
| -rw-r--r-- | sys/vm/vm_kern.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/sys/vm/vm_kern.c b/sys/vm/vm_kern.c index f767f01acaa5..77d9a4105862 100644 --- a/sys/vm/vm_kern.c +++ b/sys/vm/vm_kern.c @@ -903,3 +903,23 @@ debug_vm_lowmem(SYSCTL_HANDLER_ARGS) SYSCTL_PROC(_debug, OID_AUTO, vm_lowmem, CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RW, 0, 0, debug_vm_lowmem, "I", "set to trigger vm_lowmem event with given flags"); + +static int +debug_uma_reclaim(SYSCTL_HANDLER_ARGS) +{ + int error, i; + + i = 0; + error = sysctl_handle_int(oidp, &i, 0, req); + if (error != 0) + return (error); + if (i != UMA_RECLAIM_TRIM && i != UMA_RECLAIM_DRAIN && + i != UMA_RECLAIM_DRAIN_CPU) + return (EINVAL); + uma_reclaim(i); + return (0); +} + +SYSCTL_PROC(_debug, OID_AUTO, uma_reclaim, + CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RW, 0, 0, debug_uma_reclaim, "I", + "set to generate request to reclaim uma caches"); |