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Authored by: Simon Klinkert <simon.klinkert@gmail.com> Reviewed by: Josef 'Jeff' Sipek <josef.sipek@nexenta.com> Reviewed by: John Kennedy <john.kennedy@delphix.com> Approved by: Richard Lowe <richlowe@richlowe.net> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed by: Ned Bass <bass6@llnl.gov> Reviewed-by: Chunwei Chen <david.chen@osnexus.com> Ported-by: George Melikov <mail@gmelikov.ru> OpenZFS-issue: https://www.illumos.org/issues/5704 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/bde3d61 Closes #5767
74 lines
1.7 KiB
C
74 lines
1.7 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright (C) 2015 STRATO AG.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <libzfs.h>
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#include <sys/resource.h>
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#include <errno.h>
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/*
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* Check if libzfs works with more than 255 held file handles.
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*/
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/* ARGSUSED */
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int
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main(int argc, char **argv)
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{
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int i;
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struct rlimit limit;
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libzfs_handle_t *h;
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limit.rlim_cur = 65535;
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limit.rlim_max = 65535;
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if (setrlimit(RLIMIT_NOFILE, &limit) != 0) {
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(void) printf("many_fds: setrlimit() failed with errno=%d\n",
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errno);
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exit(1);
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}
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for (i = 0; i < 255; ++i) {
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int fd = open("/dev/null", O_RDONLY);
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if (fd == -1) {
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(void) printf("open failed with errno=%d\n", errno);
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return (1);
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}
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}
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h = libzfs_init();
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if (h != NULL) {
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libzfs_fini(h);
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return (0);
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} else {
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(void) printf("many_fds: libzfs_init() failed with errno=%d\n",
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errno);
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return (1);
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}
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}
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