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Annotate locking strategy for 'struct uidinfo'.

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This commit is contained in:
Robert Watson 2004-08-04 18:14:19 +00:00
parent 1b3b9cfe1d
commit e3a64610bf
1 changed files with 11 additions and 6 deletions
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17
sys/sys/resourcevar.h
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@ -85,15 +85,20 @@ struct plimit {
#define LIM_UNLOCK(lim) mtx_unlock((lim)->pl_mtx)
#define LIM_LOCK_ASSERT(lim, f) mtx_assert((lim)->pl_mtx, (f))
/*
/*-
* Per uid resource consumption
*
* Locking guide:
* (a) Constant from inception
* (b) Locked by ui_mtxp
* (c) Locked by global uihashtbl_mtx
*/
struct uidinfo {
LIST_ENTRY(uidinfo) ui_hash;
rlim_t ui_sbsize; /* socket buffer space consumed */
long ui_proccnt; /* number of processes */
uid_t ui_uid; /* uid */
u_int ui_ref; /* reference count */
LIST_ENTRY(uidinfo) ui_hash; /* (c) hash chain of uidinfos */
rlim_t ui_sbsize; /* (b) socket buffer space consumed */
long ui_proccnt; /* (b) number of processes */
uid_t ui_uid; /* (a) uid */
u_int ui_ref; /* (b) reference count */
struct mtx *ui_mtxp; /* protect all counts/limits */
};