diff options
Diffstat (limited to 'sys/sys/proc.h')
| -rw-r--r-- | sys/sys/proc.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/sys/sys/proc.h b/sys/sys/proc.h index e16fdd846ab8..b0c90a2d3bc8 100644 --- a/sys/sys/proc.h +++ b/sys/sys/proc.h @@ -415,6 +415,17 @@ sigonstack(size_t sp) #define AP_EXCLUSIVE LK_EXCLUSIVE #define AP_RELEASE LK_RELEASE +/* Lock and unlock the proc child and sibling lists. */ +#define PROCTREE_LOCK(how) \ + lockmgr(&proctree_lock, (how), NULL, CURPROC) + +#define PROCTREE_ASSERT(what) \ + LOCKMGR_ASSERT(&proctree_lock, (what), CURPROC) + +#define PT_SHARED LK_SHARED +#define PT_EXCLUSIVE LK_EXCLUSIVE +#define PT_RELEASE LK_RELEASE + /* Hold process U-area in memory, normally for ptrace/procfs work. */ #define PHOLD(p) do { \ PROC_LOCK(p); \ @@ -439,6 +450,7 @@ extern LIST_HEAD(pgrphashhead, pgrp) *pgrphashtbl; extern u_long pgrphash; extern struct lock allproc_lock; +extern struct lock proctree_lock; extern struct proc proc0; /* Process slot for swapper. */ extern int hogticks; /* Limit on kernel cpu hogs. */ extern int nprocs, maxproc; /* Current and max number of procs. */ |