diff options
Diffstat (limited to 'share/man')
| -rw-r--r-- | share/man/man9/Makefile | 3 | ||||
| -rw-r--r-- | share/man/man9/zone.9 | 17 |
2 files changed, 16 insertions, 4 deletions
diff --git a/share/man/man9/Makefile b/share/man/man9/Makefile index 30cb5035efcf..c1399a32b84b 100644 --- a/share/man/man9/Makefile +++ b/share/man/man9/Makefile @@ -1911,6 +1911,7 @@ MLINKS+=zone.9 uma.9 \ zone.9 uma_zone_get_cur.9 \ zone.9 uma_zone_get_max.9 \ zone.9 uma_zone_set_max.9 \ - zone.9 uma_zone_set_warning.9 + zone.9 uma_zone_set_warning.9 \ + zone.9 uma_zone_set_maxaction.9 .include <bsd.prog.mk> diff --git a/share/man/man9/zone.9 b/share/man/man9/zone.9 index 2df14b022eea..12226d1d2780 100644 --- a/share/man/man9/zone.9 +++ b/share/man/man9/zone.9 @@ -25,7 +25,7 @@ .\" .\" $FreeBSD$ .\" -.Dd February 7, 2014 +.Dd December 20, 2015 .Dt ZONE 9 .Os .Sh NAME @@ -39,7 +39,8 @@ .Nm uma_zone_set_max, .Nm uma_zone_get_max, .Nm uma_zone_get_cur, -.Nm uma_zone_set_warning +.Nm uma_zone_set_warning, +.Nm uma_zone_set_maxaction .Nd zone allocator .Sh SYNOPSIS .In sys/param.h @@ -71,6 +72,8 @@ .Fn uma_zone_get_cur "uma_zone_t zone" .Ft void .Fn uma_zone_set_warning "uma_zone_t zone" "const char *warning" +.Ft void +.Fn uma_zone_set_maxaction "uma_zone_t zone" "void (*maxaction)(uma_zone_t)" .In sys/sysctl.h .Fn SYSCTL_UMA_MAX parent nbr name access zone descr .Fn SYSCTL_ADD_UMA_MAX ctx parent nbr name access zone descr @@ -307,13 +310,21 @@ The .Fn uma_zone_set_warning function sets a warning that will be printed on the system console when the given zone becomes full and fails to allocate an item. -The warning will be printed not often than every five minutes. +The warning will be printed no more often than every five minutes. Warnings can be turned off globally by setting the .Va vm.zone_warnings sysctl tunable to .Va 0 . .Pp The +.Fn uma_zone_set_maxaction +function sets a function that will be called when the given zone becomes full +and fails to allocate an item. +The function will be called with the zone locked. Also, the function +that called the allocation function may have held additional locks. Therefore, +this function should do very little work (similar to a signal handler). +.Pp +The .Fn SYSCTL_UMA_MAX parent nbr name access zone descr macro declares a static .Xr sysctl |