diff options
Diffstat (limited to 'source/ap/ksh93/patches/ksh-20120801-locking.patch')
| -rw-r--r-- | source/ap/ksh93/patches/ksh-20120801-locking.patch | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/source/ap/ksh93/patches/ksh-20120801-locking.patch b/source/ap/ksh93/patches/ksh-20120801-locking.patch new file mode 100644 index 000000000..189d254d5 --- /dev/null +++ b/source/ap/ksh93/patches/ksh-20120801-locking.patch @@ -0,0 +1,26 @@ +diff -up ksh-20120801/src/cmd/ksh93/include/jobs.h.locking ksh-20120801/src/cmd/ksh93/include/jobs.h +--- ksh-20120801/src/cmd/ksh93/include/jobs.h.locking 2014-06-27 15:51:07.144923719 +0200 ++++ ksh-20120801/src/cmd/ksh93/include/jobs.h 2014-06-27 15:52:56.463272276 +0200 +@@ -149,15 +149,18 @@ extern struct jobs job; + #define vmbusy() 0 + #endif + +-#define job_lock() (job.in_critical++) ++#define asoincint(p) __sync_fetch_and_add(p,1) ++#define asodecint(p) __sync_fetch_and_sub(p,1) ++ ++#define job_lock() asoincint(&job.in_critical) + #define job_unlock() \ + do { \ + int sig; \ +- if (!--job.in_critical && (sig = job.savesig)) \ ++ if (asodecint(&job.in_critical)==1 && (sig = job.savesig)) \ + { \ +- if (!job.in_critical++ && !vmbusy()) \ ++ if (!asoincint(&job.in_critical) && !vmbusy()) \ + job_reap(sig); \ +- job.in_critical--; \ ++ asodecint(&job.in_critical); \ + } \ + } while(0) + |