diff options
| author | Lucas De Marchi <lucas.demarchi@intel.com> | 2019-04-04 15:16:11 -0700 |
|---|---|---|
| committer | Lucas De Marchi <lucas.demarchi@intel.com> | 2019-04-05 10:00:45 -0700 |
| commit | 8bc80862603bd5d1b0dcb7a0472935215f167f09 (patch) | |
| tree | f095731ce601ac3492add9a876cb5d108b22135e /lib | |
| parent | 019f892e5d1a0a9643cb726c47ce2d99c14b444f (diff) | |
lib: add igt_allow_unlimited_files()
Share the implementation to tweak the maximum number of open files.
The version in tests/i915/gem_exec_reuse.c was a little bit different,
but I don't think it needs to be because it would still return a
failure if any of the calls to setrlimit() fail. So I'm using the other
one.
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/igt_aux.c | 21 | ||||
| -rw-r--r-- | lib/igt_aux.h | 2 |
2 files changed, 23 insertions, 0 deletions
diff --git a/lib/igt_aux.c b/lib/igt_aux.c index 6eaf546e..266aa832 100644 --- a/lib/igt_aux.c +++ b/lib/igt_aux.c @@ -42,6 +42,7 @@ #include <unistd.h> #include <sys/poll.h> #include <sys/wait.h> +#include <sys/resource.h> #include <sys/time.h> #include <sys/types.h> #include <sys/syscall.h> @@ -1588,3 +1589,23 @@ double igt_stop_siglatency(struct igt_mean *result) return mean; } + +bool igt_allow_unlimited_files(void) +{ + struct rlimit rlim; + unsigned nofile_rlim = 1024*1024; + + FILE *file = fopen("/proc/sys/fs/file-max", "r"); + if (file) { + igt_assert(fscanf(file, "%u", &nofile_rlim) == 1); + igt_info("System limit for open files is %u\n", nofile_rlim); + fclose(file); + } + + if (getrlimit(RLIMIT_NOFILE, &rlim)) + return false; + + rlim.rlim_cur = nofile_rlim; + rlim.rlim_max = nofile_rlim; + return setrlimit(RLIMIT_NOFILE, &rlim) == 0; +} diff --git a/lib/igt_aux.h b/lib/igt_aux.h index 09b6246b..55392790 100644 --- a/lib/igt_aux.h +++ b/lib/igt_aux.h @@ -274,6 +274,8 @@ struct igt_mean; void igt_start_siglatency(int sig); /* 0 => SIGRTMIN (default) */ double igt_stop_siglatency(struct igt_mean *result); +bool igt_allow_unlimited_files(void); + void igt_set_module_param(const char *name, const char *val); void igt_set_module_param_int(const char *name, int val); |