diff options
| -rw-r--r-- | lib/libc/sys/fcntl.2 | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/libc/sys/fcntl.2 b/lib/libc/sys/fcntl.2 index 0b2ec89..b2911e5 100644 --- a/lib/libc/sys/fcntl.2 +++ b/lib/libc/sys/fcntl.2 @@ -333,6 +333,12 @@ locks may be safely used concurrently. All locks associated with a file for a given process are removed when the process terminates. .Pp +All locks obtained before a call to +.Xr execve 2 +remain in effect until the new program releases them. +If the new program does not know about the locks, they will not be +released until the program exits. +.Pp A potential for deadlock occurs if a process controlling a locked region is put to sleep by attempting to lock the locked region of another process. This implementation detects that sleeping until a locked region is unlocked |
