Date: Tue, 27 Apr 2010 19:44:06 +0000 (UTC) From: Kip Macy <kmacy@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r207288 - in user/kmacy/head_page_lock_2/sys: kern sys Message-ID: <201004271944.o3RJi63Y004073@svn.freebsd.org>
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Author: kmacy Date: Tue Apr 27 19:44:06 2010 New Revision: 207288 URL: http://svn.freebsd.org/changeset/base/207288 Log: add separate lock class function for recursed mutexes Modified: user/kmacy/head_page_lock_2/sys/kern/kern_mutex.c user/kmacy/head_page_lock_2/sys/kern/subr_lock.c user/kmacy/head_page_lock_2/sys/sys/lock.h Modified: user/kmacy/head_page_lock_2/sys/kern/kern_mutex.c ============================================================================== --- user/kmacy/head_page_lock_2/sys/kern/kern_mutex.c Tue Apr 27 18:41:16 2010 (r207287) +++ user/kmacy/head_page_lock_2/sys/kern/kern_mutex.c Tue Apr 27 19:44:06 2010 (r207288) @@ -97,6 +97,7 @@ static void lock_spin(struct lock_object static int owner_mtx(struct lock_object *lock, struct thread **owner); #endif static int unlock_mtx(struct lock_object *lock); +static int unlock_recursable_mtx(struct lock_object *lock); static int unlock_spin(struct lock_object *lock); /* @@ -111,6 +112,7 @@ struct lock_class lock_class_mtx_sleep = #endif .lc_lock = lock_mtx, .lc_unlock = unlock_mtx, + .lc_unlock_recursable = unlock_recursable_mtx, #ifdef KDTRACE_HOOKS .lc_owner = owner_mtx, #endif @@ -185,6 +187,17 @@ unlock_mtx(struct lock_object *lock) struct mtx *m; m = (struct mtx *)lock; + mtx_assert(m, MA_NOTRECURSED|MA_OWNED); + mtx_unlock(m); + return (0); +} + +int +unlock_recursable_mtx(struct lock_object *lock) +{ + struct mtx *m; + + m = (struct mtx *)lock; mtx_assert(m, MA_OWNED); mtx_unlock(m); return (0); Modified: user/kmacy/head_page_lock_2/sys/kern/subr_lock.c ============================================================================== --- user/kmacy/head_page_lock_2/sys/kern/subr_lock.c Tue Apr 27 18:41:16 2010 (r207287) +++ user/kmacy/head_page_lock_2/sys/kern/subr_lock.c Tue Apr 27 19:44:06 2010 (r207288) @@ -714,7 +714,7 @@ ls_pop(struct lock_stack *ls) ls->ls_top--; lock = ls->ls_array[ls->ls_top].lse_lock; class = ls->ls_array[ls->ls_top].lse_class; - class->lc_unlock(lock); + class->lc_unlock_recursable(lock); } void @@ -729,7 +729,7 @@ ls_popa(struct lock_stack *ls) ls->ls_top--; lock = ls->ls_array[ls->ls_top].lse_lock; class = ls->ls_array[ls->ls_top].lse_class; - class->lc_unlock(lock); + class->lc_unlock_recursable(lock); } } Modified: user/kmacy/head_page_lock_2/sys/sys/lock.h ============================================================================== --- user/kmacy/head_page_lock_2/sys/sys/lock.h Tue Apr 27 18:41:16 2010 (r207287) +++ user/kmacy/head_page_lock_2/sys/sys/lock.h Tue Apr 27 19:44:06 2010 (r207288) @@ -65,6 +65,7 @@ struct lock_class { int (*lc_unlock)(struct lock_object *lock); void (*lc_lock_full)(struct lock_object *lock, char *file, int line); int (*lc_trylock)(struct lock_object *lock); + int (*lc_unlock_recursable)(struct lock_object *lock); }; #define LC_SLEEPLOCK 0x00000001 /* Sleep lock. */
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