diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/pages.c | 12 | ||||
| -rw-r--r-- | src/prof.c | 4 |
2 files changed, 12 insertions, 4 deletions
diff --git a/src/pages.c b/src/pages.c index 0883647b..f8ef2bcb 100644 --- a/src/pages.c +++ b/src/pages.c @@ -358,7 +358,9 @@ os_overcommits_proc(void) { O_CLOEXEC); #else fd = (int)syscall(SYS_open, "/proc/sys/vm/overcommit_memory", O_RDONLY); - fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC); + if (fd != -1) { + fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC); + } #endif #elif defined(JEMALLOC_USE_SYSCALL) && defined(SYS_openat) #if defined(O_CLOEXEC) @@ -367,14 +369,18 @@ os_overcommits_proc(void) { #else fd = (int)syscall(SYS_openat, AT_FDCWD, "/proc/sys/vm/overcommit_memory", O_RDONLY); - fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC); + if (fd != -1) { + fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC); + } #endif #else #if defined(O_CLOEXEC) fd = open("/proc/sys/vm/overcommit_memory", O_RDONLY | O_CLOEXEC); #else fd = open("/proc/sys/vm/overcommit_memory", O_RDONLY); - fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC); + if (fd != -1) { + fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC); + } #endif #endif @@ -1414,7 +1414,9 @@ prof_open_maps(const char *format, ...) { mfd = open(filename, O_RDONLY | O_CLOEXEC); #else mfd = open(filename, O_RDONLY); - fcntl(mfd, F_SETFD, fcntl(mfd, F_GETFD) | FD_CLOEXEC); + if (mfd != -1) { + fcntl(mfd, F_SETFD, fcntl(mfd, F_GETFD) | FD_CLOEXEC); + } #endif return mfd; |