diff options
| author | John Baldwin <jhb@FreeBSD.org> | 2000-09-13 18:28:14 +0000 |
|---|---|---|
| committer | John Baldwin <jhb@FreeBSD.org> | 2000-09-13 18:28:14 +0000 |
| commit | 220ca3ff5e4f29e5b427150bc2bb29289fce220a (patch) | |
| tree | 41dc929e148512cc919fdca27f5d834f9e222c40 | |
| parent | 699fbdc2ab737503a3992edb73cb225ce4307b40 (diff) | |
Notes
| -rw-r--r-- | sys/alpha/include/mutex.h | 12 | ||||
| -rw-r--r-- | sys/powerpc/include/mutex.h | 12 |
2 files changed, 14 insertions, 10 deletions
diff --git a/sys/alpha/include/mutex.h b/sys/alpha/include/mutex.h index a6aad99faa4b..ae4b5bb88eb9 100644 --- a/sys/alpha/include/mutex.h +++ b/sys/alpha/include/mutex.h @@ -312,8 +312,7 @@ void witness_restore(mtx_t *, const char *, int); if (((mp)->mtx_lock & MTX_FLAGMASK) != (tid)) \ mtx_enter_hard(mp, (type) & MTX_HARDOPTS, 0); \ else { \ - if (((mp)->mtx_lock & MTX_RECURSE) == 0) \ - atomic_set_64(&(mp)->mtx_lock, MTX_RECURSE); \ + atomic_set_64(&(mp)->mtx_lock, MTX_RECURSE); \ (mp)->mtx_recurse++; \ } \ } else { \ @@ -379,12 +378,15 @@ void witness_restore(mtx_t *, const char *, int); */ #define _exitlock_spin(mp) do { \ - int _ipl = (mp)->mtx_saveipl; \ alpha_mb(); \ - if ((mp)->mtx_recurse == 0 || (--(mp)->mtx_recurse) == 0) \ + if ((mp)->mtx_recurse == 0) { \ + int _ipl = (mp)->mtx_saveipl; \ atomic_cmpset_64(&(mp)->mtx_lock, (mp)->mtx_lock, \ MTX_UNOWNED); \ - alpha_pal_swpipl(_ipl); \ + alpha_pal_swpipl(_ipl); \ + } else { \ + (mp)->mtx_recurse--; \ + } \ } while (0) /* diff --git a/sys/powerpc/include/mutex.h b/sys/powerpc/include/mutex.h index a6aad99faa4b..ae4b5bb88eb9 100644 --- a/sys/powerpc/include/mutex.h +++ b/sys/powerpc/include/mutex.h @@ -312,8 +312,7 @@ void witness_restore(mtx_t *, const char *, int); if (((mp)->mtx_lock & MTX_FLAGMASK) != (tid)) \ mtx_enter_hard(mp, (type) & MTX_HARDOPTS, 0); \ else { \ - if (((mp)->mtx_lock & MTX_RECURSE) == 0) \ - atomic_set_64(&(mp)->mtx_lock, MTX_RECURSE); \ + atomic_set_64(&(mp)->mtx_lock, MTX_RECURSE); \ (mp)->mtx_recurse++; \ } \ } else { \ @@ -379,12 +378,15 @@ void witness_restore(mtx_t *, const char *, int); */ #define _exitlock_spin(mp) do { \ - int _ipl = (mp)->mtx_saveipl; \ alpha_mb(); \ - if ((mp)->mtx_recurse == 0 || (--(mp)->mtx_recurse) == 0) \ + if ((mp)->mtx_recurse == 0) { \ + int _ipl = (mp)->mtx_saveipl; \ atomic_cmpset_64(&(mp)->mtx_lock, (mp)->mtx_lock, \ MTX_UNOWNED); \ - alpha_pal_swpipl(_ipl); \ + alpha_pal_swpipl(_ipl); \ + } else { \ + (mp)->mtx_recurse--; \ + } \ } while (0) /* |