Revision 9d6fa8fa7042622f8ed9c0988de665464d4584a6 authored by Linus Torvalds on 12 June 2011, 18:04:25 UTC, committed by Linus Torvalds on 12 June 2011, 18:04:25 UTC
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ALSA: hda: Fix inaudible internal speakers on CyberpowerPC Gamer Xplorer N57001 laptop ALSA: Use %pV for snd_printk() ALSA: hda - Fix initialization of hp pins with master_mute in Realtek ALSA: hda - Fix invalid unsol tag for some alc262 model quirks ASoC: SAMSUNG: Fix the incorrect referencing of I2SCON register ASoC: snd_soc_new_{mixer,mux,pga} make sure to use right DAPM context ASoC: fsl: fix initialization of DMA buffers ASoC: WM8804 does not support sample rates below 32kHz ASoC: Fix WM8962 headphone volume update for use of advanced caches ASoC: Blackfin: bf5xx-ad1836: Fix codec device name ALSA: hda: Fix quirk for Dell Inspiron 910 ASoC: AD1836: Fix setting the PCM format ASoC: Check for NULL register bank in snd_soc_get_cache_val() ASoC: Add missing break in WM8915 FLL source selection ASoC: Only update SYSCLK_ENA when pausing WM8915 SYSCLK ASoC: atmel_ssc: Don't try to free ssc if request failed
min_addr.c
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/security.h>
#include <linux/sysctl.h>
/* amount of vm to protect from userspace access by both DAC and the LSM*/
unsigned long mmap_min_addr;
/* amount of vm to protect from userspace using CAP_SYS_RAWIO (DAC) */
unsigned long dac_mmap_min_addr = CONFIG_DEFAULT_MMAP_MIN_ADDR;
/* amount of vm to protect from userspace using the LSM = CONFIG_LSM_MMAP_MIN_ADDR */
/*
* Update mmap_min_addr = max(dac_mmap_min_addr, CONFIG_LSM_MMAP_MIN_ADDR)
*/
static void update_mmap_min_addr(void)
{
#ifdef CONFIG_LSM_MMAP_MIN_ADDR
if (dac_mmap_min_addr > CONFIG_LSM_MMAP_MIN_ADDR)
mmap_min_addr = dac_mmap_min_addr;
else
mmap_min_addr = CONFIG_LSM_MMAP_MIN_ADDR;
#else
mmap_min_addr = dac_mmap_min_addr;
#endif
}
/*
* sysctl handler which just sets dac_mmap_min_addr = the new value and then
* calls update_mmap_min_addr() so non MAP_FIXED hints get rounded properly
*/
int mmap_min_addr_handler(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
int ret;
if (write && !capable(CAP_SYS_RAWIO))
return -EPERM;
ret = proc_doulongvec_minmax(table, write, buffer, lenp, ppos);
update_mmap_min_addr();
return ret;
}
static int __init init_mmap_min_addr(void)
{
update_mmap_min_addr();
return 0;
}
pure_initcall(init_mmap_min_addr);
![swh spinner](/static/img/swh-spinner.gif)
Computing file changes ...