Merge branch 'linus' into tracing/blktrace (72c26c9a) · Commits · e / devices / android_kernel_teracube_2e

CREDITS

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		@@ -2166,7 +2166,6 @@ D: Initial implementation of VC's, pty's and select()

		N: Pavel Machek
		E: pavel@ucw.cz
		E: pavel@suse.cz
		D: Softcursor for vga, hypertech cdrom support, vcsa bugfix, nbd
		D: sun4/330 port, capabilities for elf, speedup for rm on ext2, USB,
		D: work on suspend-to-ram/disk, killing duplicates from ioctl32

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		What: /sys/firmware/memmap/
		Date: June 2008
		Contact: Bernhard Walle <bwalle@suse.de>
		Contact: Bernhard Walle <bernhard.walle@gmx.de>
		Description:
		On all platforms, the firmware provides a memory map which the
		kernel reads. The resources from that memory map are registered

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		@@ -93,7 +93,7 @@ the PCI Express Port Bus driver from loading a service driver.

		int pcie_port_service_register(struct pcie_port_service_driver *new)

		This API replaces the Linux Driver Model's pci_module_init API. A
		This API replaces the Linux Driver Model's pci_register_driver API. A
		service driver should always calls pcie_port_service_register at
		module init. Note that after service driver being loaded, calls
		such as pci_enable_device(dev) and pci_set_master(dev) are no longer

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		@@ -252,10 +252,8 @@ cgroup file system directories.
		When a task is moved from one cgroup to another, it gets a new
		css_set pointer - if there's an already existing css_set with the
		desired collection of cgroups then that group is reused, else a new
		css_set is allocated. Note that the current implementation uses a
		linear search to locate an appropriate existing css_set, so isn't
		very efficient. A future version will use a hash table for better
		performance.
		css_set is allocated. The appropriate existing css_set is located by
		looking into a hash table.

		To allow access from a cgroup to the css_sets (and hence tasks)
		that comprise it, a set of cg_cgroup_link objects form a lattice;

0 → 100644

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		/* Disk protection for HP machines.
		*
		* Copyright 2008 Eric Piel
		* Copyright 2009 Pavel Machek <pavel@suse.cz>
		*
		* GPLv2.
		*/

		#include <stdio.h>
		#include <stdlib.h>
		#include <unistd.h>
		#include <fcntl.h>
		#include <sys/stat.h>
		#include <sys/types.h>
		#include <string.h>
		#include <stdint.h>
		#include <errno.h>
		#include <signal.h>

		void write_int(char *path, int i)
		{
		char buf[1024];
		int fd = open(path, O_RDWR);
		if (fd < 0) {
		perror("open");
		exit(1);
		}
		sprintf(buf, "%d", i);
		if (write(fd, buf, strlen(buf)) != strlen(buf)) {
		perror("write");
		exit(1);
		}
		close(fd);
		}

		void set_led(int on)
		{
		write_int("/sys/class/leds/hp::hddprotect/brightness", on);
		}

		void protect(int seconds)
		{
		write_int("/sys/block/sda/device/unload_heads", seconds*1000);
		}

		int on_ac(void)
		{
		// /sys/class/power_supply/AC0/online
		}

		int lid_open(void)
		{
		// /proc/acpi/button/lid/LID/state
		}

		void ignore_me(void)
		{
		protect(0);
		set_led(0);

		}

		int main(int argc, char* argv[])
		{
		int fd, ret;

		fd = open("/dev/freefall", O_RDONLY);
		if (fd < 0) {
		perror("open");
		return EXIT_FAILURE;
		}

		signal(SIGALRM, ignore_me);

		for (;;) {
		unsigned char count;

		ret = read(fd, &count, sizeof(count));
		alarm(0);
		if ((ret == -1) && (errno == EINTR)) {
		/* Alarm expired, time to unpark the heads */
		continue;
		}

		if (ret != sizeof(count)) {
		perror("read");
		break;
		}

		protect(21);
		set_led(1);
		if (1 \|\| on_ac() \|\| lid_open()) {
		alarm(2);
		} else {
		alarm(20);
		}
		}

		close(fd);
		return EXIT_SUCCESS;
		}