diff options
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/virtiofsd/passthrough_ll.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/tools/virtiofsd/passthrough_ll.c b/tools/virtiofsd/passthrough_ll.c index d53cb1e..c281d81 100644 --- a/tools/virtiofsd/passthrough_ll.c +++ b/tools/virtiofsd/passthrough_ll.c @@ -53,6 +53,7 @@ #include <sys/file.h> #include <sys/mount.h> #include <sys/prctl.h> +#include <sys/resource.h> #include <sys/syscall.h> #include <sys/types.h> #include <sys/wait.h> @@ -2268,6 +2269,35 @@ static void setup_sandbox(struct lo_data *lo, struct fuse_session *se) setup_seccomp(); } +/* Raise the maximum number of open file descriptors */ +static void setup_nofile_rlimit(void) +{ + const rlim_t max_fds = 1000000; + struct rlimit rlim; + + if (getrlimit(RLIMIT_NOFILE, &rlim) < 0) { + fuse_log(FUSE_LOG_ERR, "getrlimit(RLIMIT_NOFILE): %m\n"); + exit(1); + } + + if (rlim.rlim_cur >= max_fds) { + return; /* nothing to do */ + } + + rlim.rlim_cur = max_fds; + rlim.rlim_max = max_fds; + + if (setrlimit(RLIMIT_NOFILE, &rlim) < 0) { + /* Ignore SELinux denials */ + if (errno == EPERM) { + return; + } + + fuse_log(FUSE_LOG_ERR, "setrlimit(RLIMIT_NOFILE): %m\n"); + exit(1); + } +} + int main(int argc, char *argv[]) { struct fuse_args args = FUSE_ARGS_INIT(argc, argv); @@ -2389,6 +2419,8 @@ int main(int argc, char *argv[]) fuse_daemonize(opts.foreground); + setup_nofile_rlimit(); + /* Must be before sandbox since it wants /proc */ setup_capng(); |