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Add sysctl documentation strings. The descriptions are derived

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from tuning(7). One of the descriptions references tuning(7) because
it is too complex to adequatly describe here (it is not a simple
boolean sysctl) and users should be warned to that.

Reviewed by:	alc, kib
Approved by:	gnn (mentor)
This commit is contained in:
Ivan Voras 2009-11-02 16:56:59 +00:00
parent cf6c5eebe7
commit 8a9c731f13
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=198811
1 changed files with 7 additions and 3 deletions
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10
sys/vm/swap_pager.c
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@ -155,11 +155,15 @@ int swap_pager_avail;
static int swdev_syscall_active = 0; /* serialize swap(on|off) */
static vm_ooffset_t swap_total;
SYSCTL_QUAD(_vm, OID_AUTO, swap_total, CTLFLAG_RD, &swap_total, 0, "");
SYSCTL_QUAD(_vm, OID_AUTO, swap_total, CTLFLAG_RD, &swap_total, 0,
"Total amount of available swap storage.");
static vm_ooffset_t swap_reserved;
SYSCTL_QUAD(_vm, OID_AUTO, swap_reserved, CTLFLAG_RD, &swap_reserved, 0, "");
SYSCTL_QUAD(_vm, OID_AUTO, swap_reserved, CTLFLAG_RD, &swap_reserved, 0,
"Amount of swap storage needed to back all allocated anonymous memory.");
static int overcommit = 0;
SYSCTL_INT(_vm, OID_AUTO, overcommit, CTLFLAG_RW, &overcommit, 0, "");
SYSCTL_INT(_vm, OID_AUTO, overcommit, CTLFLAG_RW, &overcommit, 0,
"Configure virtual memory overcommit behavior. See tuning(7) "
"for details.");
/* bits from overcommit */
#define SWAP_RESERVE_FORCE_ON (1 << 0)