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| author | John Baldwin <jhb@FreeBSD.org> | 2006-06-03 21:11:33 +0000 |
|---|---|---|
| committer | John Baldwin <jhb@FreeBSD.org> | 2006-06-03 21:11:33 +0000 |
| commit | 49b94bfc54b617782de9f235dd59702b64f0022b (patch) | |
| tree | 90c4315ce032709aa7289d88b5a9e68f10ada59e /sys/kern/kern_mutex.c | |
| parent | f99cc4ad59e7a48928c6bfe4fa788ea0c1171bd8 (diff) | |
| download | src-49b94bfc54b617782de9f235dd59702b64f0022b.tar.gz src-49b94bfc54b617782de9f235dd59702b64f0022b.zip | |
Bah, fix fat finger in last. Invert the ~ on MTX_FLAGMASK as it's
non-intuitive for the ~ to be built into the mask. All the users now
explicitly ~ the mask. In addition, add MTX_UNOWNED to the mask even
though it technically isn't a flag. This should unbreak mtx_owner().
Quickly spotted by: kris
Notes
Notes:
svn path=/head/; revision=159208
Diffstat (limited to 'sys/kern/kern_mutex.c')
| -rw-r--r-- | sys/kern/kern_mutex.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/kern/kern_mutex.c b/sys/kern/kern_mutex.c index 65b8300921e6..634fa9d82627 100644 --- a/sys/kern/kern_mutex.c +++ b/sys/kern/kern_mutex.c @@ -85,7 +85,7 @@ __FBSDID("$FreeBSD$"); */ #define mtx_unowned(m) ((m)->mtx_lock == MTX_UNOWNED) -#define mtx_owner(m) ((struct thread *)((m)->mtx_lock & (MTX_FLAGMASK|MTX_UNOWNED))) +#define mtx_owner(m) ((struct thread *)((m)->mtx_lock & ~MTX_FLAGMASK)) #ifdef DDB static void db_show_mtx(struct lock_object *lock); @@ -527,7 +527,7 @@ _mtx_lock_sleep(struct mtx *m, uintptr_t tid, int opts, const char *file, * If the current owner of the lock is executing on another * CPU, spin instead of blocking. */ - owner = (struct thread *)(v & MTX_FLAGMASK); + owner = (struct thread *)(v & ~MTX_FLAGMASK); #ifdef ADAPTIVE_GIANT if (TD_IS_RUNNING(owner)) { #else |