1. 28 Nov, 2005 8 commits
    • Andrew Morton's avatar
      [PATCH] memory_sysdev_class is static · ff88a3b2
      Andrew Morton authored
      So don't define it as extern in the header file.
      
      drivers/base/memory.c:28: error: static declaration of 'memory_sysdev_class' follows non-static declaration
      include/linux/memory.h:88: error: previous declaration of 'memory_sysdev_class' was here
      
      Cc: Greg KH <greg@kroah.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      ff88a3b2
    • Ashok Raj's avatar
      [PATCH] clean up lock_cpu_hotplug() in cpufreq · a9d9baa1
      Ashok Raj authored
      There are some callers in cpufreq hotplug notify path that the lowest
      function calls lock_cpu_hotplug().  The lock is already held during
      cpu_up() and cpu_down() calls when the notify calls are broadcast to
      registered clients.
      
      Ideally if possible, we could disable_preempt() at the highest caller and
      make sure we dont sleep in the path down in cpufreq->driver_target() calls
      but the calls are so intertwined and cumbersome to cleanup.
      
      Hence we consistently use lock_cpu_hotplug() and unlock_cpu_hotplug() in
      all places.
      
       - Removed export of cpucontrol semaphore and made it static.
       - removed explicit uses of up/down with lock_cpu_hotplug()
         so we can keep track of the the callers in same thread context and
         just keep refcounts without calling a down() that causes a deadlock.
       - Removed current_in_hotplug() uses
       - Removed PF_HOTPLUG_CPU in sched.h introduced for the current_in_hotplug()
         temporary workaround.
      
      Tested with insmod of cpufreq_stat.ko, and logical online/offline
      to make sure we dont have any hang situations.
      Signed-off-by: default avatarAshok Raj <ashok.raj@intel.com>
      Cc: Zwane Mwaikambo <zwane@linuxpower.ca>
      Cc: Shaohua Li <shaohua.li@intel.com>
      Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      a9d9baa1
    • Alan Stern's avatar
      [PATCH] Workaround for gcc 2.96 (undefined references) · e0f39591
      Alan Stern authored
        LD      .tmp_vmlinux1
      mm/built-in.o(.text+0x100d6): In function `copy_page_range':
      : undefined reference to `__pud_alloc'
      mm/built-in.o(.text+0x1010b): In function `copy_page_range':
      : undefined reference to `__pmd_alloc'
      mm/built-in.o(.text+0x11ef4): In function `__handle_mm_fault':
      : undefined reference to `__pud_alloc'
      fs/built-in.o(.text+0xc930): In function `install_arg_page':
      : undefined reference to `__pud_alloc'
      make: *** [.tmp_vmlinux1] Error 1
      
      Those missing references in mm/memory.c arise from this code in
      include/linux/mm.h, combined with the fact that __PGTABLE_PMD_FOLDED and
      __PGTABLE_PUD_FOLDED are both set and __ARCH_HAS_4LEVEL_HACK is not:
      
      /*
       * The following ifdef needed to get the 4level-fixup.h header to work.
       * Remove it when 4level-fixup.h has been removed.
       */
      #if defined(CONFIG_MMU) && !defined(__ARCH_HAS_4LEVEL_HACK)
      static inline pud_t *pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
      {
              return (unlikely(pgd_none(*pgd)) && __pud_alloc(mm, pgd, address))?
                      NULL: pud_offset(pgd, address);
      }
      
      static inline pmd_t *pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address)
      {
              return (unlikely(pud_none(*pud)) && __pmd_alloc(mm, pud, address))?
                      NULL: pmd_offset(pud, address);
      }
      #endif /* CONFIG_MMU && !__ARCH_HAS_4LEVEL_HACK */
      
      With my configuration the pgd_none and pud_none routines are inlines
      returning a constant 0.  Apparently the old compiler avoids generating
      calls to __pud_alloc and __pmd_alloc but still lists them as undefined
      references in the module's symbol table.
      
      I don't know which change caused this problem.  I think it was added
      somewhere between 2.6.14 and 2.6.15-rc1, because I remember building
      several 2.6.14-rc kernels without difficulty.  However I can't point to an
      individual culprit.
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      e0f39591
    • David S. Miller's avatar
      [PATCH] sparc: convert IO remapping to VM_PFNMAP · 5cd9194a
      David S. Miller authored
      Here are the Sparc bits.
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      5cd9194a
    • Linus Torvalds's avatar
      mm: re-architect the VM_UNPAGED logic · 6aab341e
      Linus Torvalds authored
      This replaces the (in my opinion horrible) VM_UNMAPPED logic with very
      explicit support for a "remapped page range" aka VM_PFNMAP.  It allows a
      VM area to contain an arbitrary range of page table entries that the VM
      never touches, and never considers to be normal pages.
      
      Any user of "remap_pfn_range()" automatically gets this new
      functionality, and doesn't even have to mark the pages reserved or
      indeed mark them any other way.  It just works.  As a side effect, doing
      mmap() on /dev/mem works for arbitrary ranges.
      
      Sparc update from David in the next commit.
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      6aab341e
    • Adrian Bunk's avatar
      [PATCH] drivers/scsi/dpt_i2o.c: fix a NULL pointer dereference · 458af543
      Adrian Bunk authored
      The Coverity checker spotted this obvious NULL pointer dereference.
      Signed-off-by: default avatarAdrian Bunk <bunk@stusta.de>
      Acked-by: default avatarMark Salyzyn <mark_salyzyn@adaptec.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      458af543
    • Adrian Bunk's avatar
      [PATCH] drivers/infiniband/core/mad.c: fix use-after-release case · 2012a116
      Adrian Bunk authored
      The Coverity checker spotted this obvious use-after-release bug caused
      by a wrong order of the cleanups.
      Signed-off-by: default avatarAdrian Bunk <bunk@stusta.de>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      2012a116
    • Adrian Bunk's avatar
      [PATCH] drivers/message/i2o/pci.c: fix a NULL pointer dereference · 16a63173
      Adrian Bunk authored
      The Coverity checker spotted this obvious NULL pointer dereference.
      Signed-off-by: default avatarAdrian Bunk <bunk@stusta.de>
      Acked-by: default avatarMarkus Lidel <Markus.Lidel@shadowconnect.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      16a63173
  2. 26 Nov, 2005 1 commit
  3. 25 Nov, 2005 17 commits
  4. 24 Nov, 2005 14 commits