diff options
Diffstat (limited to 'share/man/man9/zone.9')
| -rw-r--r-- | share/man/man9/zone.9 | 48 |
1 files changed, 42 insertions, 6 deletions
diff --git a/share/man/man9/zone.9 b/share/man/man9/zone.9 index e26b29976807..a6b8d2dfedbe 100644 --- a/share/man/man9/zone.9 +++ b/share/man/man9/zone.9 @@ -1,5 +1,5 @@ .\"- -.\" Copyright (c) 2001 Dag-Erling Coïdan Smørgrav +.\" Copyright (c) 2001 Dag-Erling Smørgrav .\" All rights reserved. .\" .\" Redistribution and use in source and binary forms, with or without @@ -23,9 +23,7 @@ .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" -.\" $FreeBSD$ -.\" -.Dd February 15, 2022 +.Dd January 16, 2023 .Dt UMA 9 .Os .Sh NAME @@ -50,7 +48,7 @@ typedef void (*uma_free)(void *item, vm_size_t size, uint8_t pflag); .Ed .Ft uma_zone_t .Fo uma_zcreate -.Fa "char *name" "int size" +.Fa "char *name" "size_t size" .Fa "uma_ctor ctor" "uma_dtor dtor" "uma_init zinit" "uma_fini zfini" .Fa "int align" "uint16_t flags" .Fc @@ -79,6 +77,8 @@ typedef void (*uma_free)(void *item, vm_size_t size, uint8_t pflag); .Fn uma_zalloc_pcpu "uma_zone_t zone" "int flags" .Ft "void *" .Fn uma_zalloc_pcpu_arg "uma_zone_t zone" "void *arg" "int flags" +.Ft "void *" +.Fn uma_zalloc_smr "uma_zone_t zone" "int flags" .Ft void .Fn uma_zfree "uma_zone_t zone" "void *item" .Ft void @@ -88,6 +88,8 @@ typedef void (*uma_free)(void *item, vm_size_t size, uint8_t pflag); .Ft void .Fn uma_zfree_pcpu_arg "uma_zone_t zone" "void *item" "void *arg" .Ft void +.Fn uma_zfree_smr "uma_zone_t zone" "void *item" +.Ft void .Fn uma_prealloc "uma_zone_t zone" "int nitems" .Ft void .Fn uma_zone_reserve "uma_zone_t zone" "int nitems" @@ -117,6 +119,10 @@ typedef void (*uma_free)(void *item, vm_size_t size, uint8_t pflag); .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)" +.Ft smr_t +.Fn uma_zone_get_smr "uma_zone_t zone" +.Ft void +.Fn uma_zone_set_smr "uma_zone_t zone" "smr_t smr" .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 @@ -330,6 +336,14 @@ Cached items that have not been used for a long period may also be freed from zone. When this flag is set, the system will not reclaim memory from the zone's caches. +.It Dv UMA_ZONE_SMR +Create a zone whose items will be synchronized using the +.Xr smr 9 +mechanism. +Upon creation the zone will have an associated +.Dt smr_t +structure which can be fetched using +.Fn uma_zone_get_smr . .El .Pp Zones can be destroyed using @@ -390,6 +404,17 @@ then does nothing. .Pp The +.Fn uma_zalloc_smr +and +.Fn uma_zfree_smr +functions allocate and free items from an SMR-enabled zone, that is, +a zone created with +.Dv UMA_ZONE_SMR +or a zone that has had +.Fn uma_zone_set_smr +called. +.Pp +The .Fn uma_zalloc_domain function allows callers to specify a fixed .Xr numa 4 @@ -535,6 +560,16 @@ Therefore, this function should do very little work (similar to a signal handler). .Pp The +.Fn uma_zone_set_smr +function associates an existing +.Xr smr 9 +structure with a UMA zone. +The effect is similar to creating a zone with the +.Dv UMA_ZONE_SMR +flag, except that a new SMR structure is not created. +This function must be called before any allocations from the zone are performed. +.Pp +The .Fn SYSCTL_UMA_MAX parent nbr name access zone descr macro declares a static .Xr sysctl 9 @@ -577,7 +612,8 @@ non-executable memory. .Sh SEE ALSO .Xr numa 4 , .Xr vmstat 8 , -.Xr malloc 9 +.Xr malloc 9 , +.Xr smr 9 .Rs .%A Jeff Bonwick .%T "The Slab Allocator: An Object-Caching Kernel Memory Allocator" |