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System: Linux aac286ea486c 5.14.0-687.15.1.el9_8.x86_64 #1 SMP PREEMPT_DYNAMIC Thu Jun 11 08:51:45 EDT 2026 x86_64
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PHP: 8.2.30
Disabled: pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,disk_free_space,diskfreespace
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File: //usr/include/linux/blkdev.h
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _LINUX_BLKDEV_H
#define _LINUX_BLKDEV_H

#include <linux/ioctl.h>
#include <linux/types.h>

/*
 * io_uring block file commands, see IORING_OP_URING_CMD.
 * It's a different number space from ioctl(), reuse the block's code 0x12.
 */
#define BLOCK_URING_CMD_DISCARD			_IO(0x12, 0)

#endif
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