1. 28 1月, 2012 2 次提交
  2. 04 1月, 2012 4 次提交
    • L
      Revert "rtc: Expire alarms after the time is set." · f423fc62
      Linus Torvalds 提交于
      This reverts commit 93b2ec01.
      
      The call to "schedule_work()" in rtc_initialize_alarm() happens too
      early, and can cause oopses at bootup
      
      Neil Brown explains why we do it:
      
        "If you set an alarm in the future, then shutdown and boot again after
         that time, then you will end up with a timer_queue node which is in
         the past.
      
         When this happens the queue gets stuck.  That entry-in-the-past won't
         get removed until and interrupt happens and an interrupt won't happen
         because the RTC only triggers an interrupt when the alarm is "now".
      
         So you'll find that e.g.  "hwclock" will always tell you that
         'select' timed out.
      
         So we force the interrupt work to happen at the start just in case."
      
      and has a patch that convert it to do things in-process rather than with
      the worker thread, but right now it's too late to play around with this,
      so we just revert the patch that caused problems for now.
      Reported-by: NSander Eikelenboom <linux@eikelenboom.it>
      Requested-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Requested-by: NJohn Stultz <john.stultz@linaro.org>
      Cc: Neil Brown <neilb@suse.de>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      f423fc62
    • L
      Revert "rtc: Disable the alarm in the hardware" · 157e8bf8
      Linus Torvalds 提交于
      This reverts commit c0afabd3.
      
      It causes failures on Toshiba laptops - instead of disabling the alarm,
      it actually seems to enable it on the affected laptops, resulting in
      (for example) the laptop powering on automatically five minutes after
      shutdown.
      
      There's a patch for it that appears to work for at least some people,
      but it's too late to play around with this, so revert for now and try
      again in the next merge window.
      
      See for example
      
      	http://bugs.debian.org/652869
      
      Reported-and-bisected-by: Andreas Friedrich <afrie@gmx.net> (Toshiba Tecra)
      Reported-by: Antonio-M. Corbi Bellot <antonio.corbi@ua.es> (Toshiba Portege R500)
      Reported-by: Marco Santos <marco.santos@waynext.com> (Toshiba Portege Z830)
      Reported-by: Christophe Vu-Brugier <cvubrugier@yahoo.fr>  (Toshiba Portege R830)
      Cc: Jonathan Nieder <jrnieder@gmail.com>
      Requested-by: NJohn Stultz <john.stultz@linaro.org>
      Cc: stable@kernel.org  # for the versions that applied this
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      157e8bf8
    • M
      hung_task: fix false positive during vfork · f9fab10b
      Mandeep Singh Baines 提交于
      vfork parent uninterruptibly and unkillably waits for its child to
      exec/exit. This wait is of unbounded length. Ignore such waits
      in the hung_task detector.
      Signed-off-by: NMandeep Singh Baines <msb@chromium.org>
      Reported-by: NSasha Levin <levinsasha928@gmail.com>
      LKML-Reference: <1325344394.28904.43.camel@lappy>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Cc: John Kacur <jkacur@redhat.com>
      Cc: stable@kernel.org
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      f9fab10b
    • J
      security: Fix security_old_inode_init_security() when CONFIG_SECURITY is not set · 30e05324
      Jan Kara 提交于
      Commit 1e39f384 ("evm: fix build problems") makes the stub version
      of security_old_inode_init_security() return 0 when CONFIG_SECURITY is
      not set.
      
      But that makes callers such as reiserfs_security_init() assume that
      security_old_inode_init_security() has set name, value, and len
      arguments properly - but security_old_inode_init_security() left them
      uninitialized which then results in interesting failures.
      
      Revert security_old_inode_init_security() to the old behavior of
      returning EOPNOTSUPP since both callers (reiserfs and ocfs2) handle this
      just fine.
      
      [ Also fixed the S_PRIVATE(inode) case of the actual non-stub
        security_old_inode_init_security() function to return EOPNOTSUPP
        for the same reason, as pointed out by Mimi Zohar.
      
        It got incorrectly changed to match the new function in commit
        fb88c2b6: "evm: fix security/security_old_init_security return
        code".   - Linus ]
      Reported-by: NJorge Bastos <mysql.jorge@decimal.pt>
      Acked-by: NJames Morris <jmorris@namei.org>
      Acked-by: NMimi Zohar <zohar@us.ibm.com>
      Signed-off-by: NJan Kara <jack@suse.cz>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      30e05324
  3. 03 1月, 2012 2 次提交
  4. 02 1月, 2012 1 次提交
  5. 01 1月, 2012 3 次提交
  6. 31 12月, 2011 11 次提交
  7. 30 12月, 2011 11 次提交
    • L
      Merge branch 'iommu/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu · 89307bab
      Linus Torvalds 提交于
      * 'iommu/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
        iommu: Initialize domain->handler in iommu_domain_alloc()
      89307bab
    • L
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 50b2abed
      Linus Torvalds 提交于
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
        packet: fix possible dev refcnt leak when bind fail
        netem: dont call vfree() under spinlock and BH disabled
        netfilter: ctnetlink: fix scheduling while atomic if helper is autoloaded
        netfilter: ctnetlink: fix return value of ctnetlink_get_expect()
      50b2abed
    • L
      Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 7578ed02
      Linus Torvalds 提交于
      * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        perf/x86: Fix raw_spin_unlock_irqrestore() usage
        oprofile, arm/sh: Fix oprofile_arch_exit() linkage issue
      7578ed02
    • L
      Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs · d2bac6ab
      Linus Torvalds 提交于
      * 'for-linus' of git://oss.sgi.com/xfs/xfs:
        xfs: log all dirty inodes in xfs_fs_sync_fs
        xfs: log the inode in ->write_inode calls for kupdate
      d2bac6ab
    • L
      Merge branch 'for-linus' of git://git.kernel.dk/linux-block · 1cac8e88
      Linus Torvalds 提交于
      * 'for-linus' of git://git.kernel.dk/linux-block:
        block: fix blk_queue_end_tag()
        block: re-use existing 'reading' variable instead of checking direction again
        block, cfq: fix empty queue crash caused by request merge
      1cac8e88
    • H
      mm: hugetlb: fix non-atomic enqueue of huge page · b0365c8d
      Hillf Danton 提交于
      If a huge page is enqueued under the protection of hugetlb_lock, then the
      operation is atomic and safe.
      Signed-off-by: NHillf Danton <dhillf@gmail.com>
      Reviewed-by: NMichal Hocko <mhocko@suse.cz>
      Acked-by: NKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
      Cc: <stable@vger.kernel.org>		[2.6.37+]
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      b0365c8d
    • A
      procfs: do not confuse jiffies with cputime64_t · 34845636
      Andreas Schwab 提交于
      Commit 2a95ea6c ("procfs: do not overflow get_{idle,iowait}_time
      for nohz") did not take into account that one some architectures jiffies
      and cputime use different units.
      
      This causes get_idle_time() to return numbers in the wrong units, making
      the idle time fields in /proc/stat wrong.
      
      Instead of converting the usec value returned by
      get_cpu_{idle,iowait}_time_us to units of jiffies, use the new function
      usecs_to_cputime64 to convert it to the correct unit of cputime64_t.
      Signed-off-by: NAndreas Schwab <schwab@linux-m68k.org>
      Acked-by: NMichal Hocko <mhocko@suse.cz>
      Cc: Arnd Bergmann <arnd@arndb.de>
      Cc: "Artem S. Tashkinov" <t.artem@mailcity.com>
      Cc: Dave Jones <davej@redhat.com>
      Cc: Alexey Dobriyan <adobriyan@gmail.com>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: "Luck, Tony" <tony.luck@intel.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
      Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      34845636
    • K
      mm/mempolicy.c: refix mbind_range() vma issue · e26a5114
      KOSAKI Motohiro 提交于
      commit 8aacc9f5 ("mm/mempolicy.c: fix pgoff in mbind vma merge") is the
      slightly incorrect fix.
      
      Why? Think following case.
      
      1. map 4 pages of a file at offset 0
      
         [0123]
      
      2. map 2 pages just after the first mapping of the same file but with
         page offset 2
      
         [0123][23]
      
      3. mbind() 2 pages from the first mapping at offset 2.
         mbind_range() should treat new vma is,
      
         [0123][23]
           |23|
           mbind vma
      
         but it does
      
         [0123][23]
           |01|
           mbind vma
      
         Oops. then, it makes wrong vma merge and splitting ([01][0123] or similar).
      
      This patch fixes it.
      
      [testcase]
        test result - before the patch
      
      	case4: 126: test failed. expect '2,4', actual '2,2,2'
             	case5: passed
      	case6: passed
      	case7: passed
      	case8: passed
      	case_n: 246: test failed. expect '4,2', actual '1,4'
      
      	------------[ cut here ]------------
      	kernel BUG at mm/filemap.c:135!
      	invalid opcode: 0000 [#4] SMP DEBUG_PAGEALLOC
      
      	(snip long bug on messages)
      
        test result - after the patch
      
      	case4: passed
             	case5: passed
      	case6: passed
      	case7: passed
      	case8: passed
      	case_n: passed
      
        source:  mbind_vma_test.c
      ============================================================
       #include <numaif.h>
       #include <numa.h>
       #include <sys/mman.h>
       #include <stdio.h>
       #include <unistd.h>
       #include <stdlib.h>
       #include <string.h>
      
      static unsigned long pagesize;
      void* mmap_addr;
      struct bitmask *nmask;
      char buf[1024];
      FILE *file;
      char retbuf[10240] = "";
      int mapped_fd;
      
      char *rubysrc = "ruby -e '\
        pid = %d; \
        vstart = 0x%llx; \
        vend = 0x%llx; \
        s = `pmap -q #{pid}`; \
        rary = []; \
        s.each_line {|line|; \
          ary=line.split(\" \"); \
          addr = ary[0].to_i(16); \
          if(vstart <= addr && addr < vend) then \
            rary.push(ary[1].to_i()/4); \
          end; \
        }; \
        print rary.join(\",\"); \
      '";
      
      void init(void)
      {
      	void* addr;
      	char buf[128];
      
      	nmask = numa_allocate_nodemask();
      	numa_bitmask_setbit(nmask, 0);
      
      	pagesize = getpagesize();
      
      	sprintf(buf, "%s", "mbind_vma_XXXXXX");
      	mapped_fd = mkstemp(buf);
      	if (mapped_fd == -1)
      		perror("mkstemp "), exit(1);
      	unlink(buf);
      
      	if (lseek(mapped_fd, pagesize*8, SEEK_SET) < 0)
      		perror("lseek "), exit(1);
      	if (write(mapped_fd, "\0", 1) < 0)
      		perror("write "), exit(1);
      
      	addr = mmap(NULL, pagesize*8, PROT_NONE,
      		    MAP_SHARED, mapped_fd, 0);
      	if (addr == MAP_FAILED)
      		perror("mmap "), exit(1);
      
      	if (mprotect(addr+pagesize, pagesize*6, PROT_READ|PROT_WRITE) < 0)
      		perror("mprotect "), exit(1);
      
      	mmap_addr = addr + pagesize;
      
      	/* make page populate */
      	memset(mmap_addr, 0, pagesize*6);
      }
      
      void fin(void)
      {
      	void* addr = mmap_addr - pagesize;
      	munmap(addr, pagesize*8);
      
      	memset(buf, 0, sizeof(buf));
      	memset(retbuf, 0, sizeof(retbuf));
      }
      
      void mem_bind(int index, int len)
      {
      	int err;
      
      	err = mbind(mmap_addr+pagesize*index, pagesize*len,
      		    MPOL_BIND, nmask->maskp, nmask->size, 0);
      	if (err)
      		perror("mbind "), exit(err);
      }
      
      void mem_interleave(int index, int len)
      {
      	int err;
      
      	err = mbind(mmap_addr+pagesize*index, pagesize*len,
      		    MPOL_INTERLEAVE, nmask->maskp, nmask->size, 0);
      	if (err)
      		perror("mbind "), exit(err);
      }
      
      void mem_unbind(int index, int len)
      {
      	int err;
      
      	err = mbind(mmap_addr+pagesize*index, pagesize*len,
      		    MPOL_DEFAULT, NULL, 0, 0);
      	if (err)
      		perror("mbind "), exit(err);
      }
      
      void Assert(char *expected, char *value, char *name, int line)
      {
      	if (strcmp(expected, value) == 0) {
      		fprintf(stderr, "%s: passed\n", name);
      		return;
      	}
      	else {
      		fprintf(stderr, "%s: %d: test failed. expect '%s', actual '%s'\n",
      			name, line,
      			expected, value);
      //		exit(1);
      	}
      }
      
      /*
            AAAA
          PPPPPPNNNNNN
          might become
          PPNNNNNNNNNN
          case 4 below
      */
      void case4(void)
      {
      	init();
      	sprintf(buf, rubysrc, getpid(), mmap_addr, mmap_addr+pagesize*6);
      
      	mem_bind(0, 4);
      	mem_unbind(2, 2);
      
      	file = popen(buf, "r");
      	fread(retbuf, sizeof(retbuf), 1, file);
      	Assert("2,4", retbuf, "case4", __LINE__);
      
      	fin();
      }
      
      /*
             AAAA
       PPPPPPNNNNNN
       might become
       PPPPPPPPPPNN
       case 5 below
      */
      void case5(void)
      {
      	init();
      	sprintf(buf, rubysrc, getpid(), mmap_addr, mmap_addr+pagesize*6);
      
      	mem_bind(0, 2);
      	mem_bind(2, 2);
      
      	file = popen(buf, "r");
      	fread(retbuf, sizeof(retbuf), 1, file);
      	Assert("4,2", retbuf, "case5", __LINE__);
      
      	fin();
      }
      
      /*
      	    AAAA
      	PPPPNNNNXXXX
      	might become
      	PPPPPPPPPPPP 6
      */
      void case6(void)
      {
      	init();
      	sprintf(buf, rubysrc, getpid(), mmap_addr, mmap_addr+pagesize*6);
      
      	mem_bind(0, 2);
      	mem_bind(4, 2);
      	mem_bind(2, 2);
      
      	file = popen(buf, "r");
      	fread(retbuf, sizeof(retbuf), 1, file);
      	Assert("6", retbuf, "case6", __LINE__);
      
      	fin();
      }
      
      /*
          AAAA
      PPPPNNNNXXXX
      might become
      PPPPPPPPXXXX 7
      */
      void case7(void)
      {
      	init();
      	sprintf(buf, rubysrc, getpid(), mmap_addr, mmap_addr+pagesize*6);
      
      	mem_bind(0, 2);
      	mem_interleave(4, 2);
      	mem_bind(2, 2);
      
      	file = popen(buf, "r");
      	fread(retbuf, sizeof(retbuf), 1, file);
      	Assert("4,2", retbuf, "case7", __LINE__);
      
      	fin();
      }
      
      /*
          AAAA
      PPPPNNNNXXXX
      might become
      PPPPNNNNNNNN 8
      */
      void case8(void)
      {
      	init();
      	sprintf(buf, rubysrc, getpid(), mmap_addr, mmap_addr+pagesize*6);
      
      	mem_bind(0, 2);
      	mem_interleave(4, 2);
      	mem_interleave(2, 2);
      
      	file = popen(buf, "r");
      	fread(retbuf, sizeof(retbuf), 1, file);
      	Assert("2,4", retbuf, "case8", __LINE__);
      
      	fin();
      }
      
      void case_n(void)
      {
      	init();
      	sprintf(buf, rubysrc, getpid(), mmap_addr, mmap_addr+pagesize*6);
      
      	/* make redundunt mappings [0][1234][34][7] */
      	mmap(mmap_addr + pagesize*4, pagesize*2, PROT_READ|PROT_WRITE,
      	     MAP_FIXED|MAP_SHARED, mapped_fd, pagesize*3);
      
      	/* Expect to do nothing. */
      	mem_unbind(2, 2);
      
      	file = popen(buf, "r");
      	fread(retbuf, sizeof(retbuf), 1, file);
      	Assert("4,2", retbuf, "case_n", __LINE__);
      
      	fin();
      }
      
      int main(int argc, char** argv)
      {
      	case4();
      	case5();
      	case6();
      	case7();
      	case8();
      	case_n();
      
      	return 0;
      }
      =============================================================
      Signed-off-by: NKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
      Acked-by: NJohannes Weiner <hannes@cmpxchg.org>
      Cc: Minchan Kim <minchan.kim@gmail.com>
      Cc: Caspar Zhang <caspar@casparzhang.com>
      Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
      Cc: Christoph Lameter <cl@linux.com>
      Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk>
      Cc: Mel Gorman <mel@csn.ul.ie>
      Cc: Lee Schermerhorn <lee.schermerhorn@hp.com>
      Cc: <stable@vger.kernel.org>		[3.1.x]
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      e26a5114
    • H
      gspca: Fix bulk mode cameras no longer working (regression fix) · 757e55c2
      Hans de Goede 提交于
      The new iso bandwidth calculation code accidentally has broken support
      for bulk mode cameras. This has broken the following drivers:
      finepix, jeilinj, ovfx2, ov534, ov534_9, se401, sq905, sq905c, sq930x,
      stv0680, vicam.
      
      Thix patch fixes this. Fix tested with: se401, sq905, sq905c, stv0680 & vicam
      cams.
      Signed-off-by: NHans de Goede <hdegoede@redhat.com>
      Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      757e55c2
    • T
      Input: sentelic - fix retrieving number of buttons · 6ccbcf2c
      Tai-hwa Liang 提交于
      Fixing wrong register offset which is used to retrieve the number of buttons
      attached to the hardware.
      Signed-off-by: NTai-hwa Liang <avatar@sentelic.com>
      Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
      6ccbcf2c
    • S
      ceph: disable use of dcache for readdir etc. · a4d46363
      Sage Weil 提交于
      Ceph attempts to use the dcache to satisfy negative lookups and readdir
      when the entire directory contents are in cache.  Disable this behavior
      until lingering bugs in this code are shaken out; we'll re-enable these
      hooks once things are fully stable.
      Signed-off-by: NSage Weil <sage@newdream.net>
      a4d46363
  8. 29 12月, 2011 1 次提交
  9. 28 12月, 2011 4 次提交
  10. 27 12月, 2011 1 次提交