Merge branch 'kvm-updates/2.6.35' of git://git.kernel.org/pub/scm/virt/kvm/kvm
authorLinus Torvalds <torvalds@linux-foundation.org>
Mon, 26 Jul 2010 15:18:18 +0000 (08:18 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Mon, 26 Jul 2010 15:18:18 +0000 (08:18 -0700)
* 'kvm-updates/2.6.35' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: Use kmalloc() instead of vmalloc() for KVM_[GS]ET_MSR
  KVM: MMU: fix conflict access permissions in direct sp

31 files changed:
Documentation/feature-removal-schedule.txt
Documentation/kernel-parameters.txt
arch/arm/mach-omap2/board-rx51-peripherals.c
arch/powerpc/include/asm/kexec.h
arch/powerpc/include/asm/mmu-hash64.h
arch/powerpc/kernel/prom.c
arch/powerpc/mm/hash_low_64.S
arch/powerpc/mm/hash_utils_64.c
arch/powerpc/mm/hugetlbpage-hash64.c
arch/powerpc/mm/numa.c
arch/powerpc/platforms/pseries/hotplug-memory.c
arch/x86/kernel/acpi/cstate.c
arch/x86/kernel/acpi/sleep.c
drivers/acpi/acpica/evxfevnt.c
drivers/acpi/battery.c
drivers/acpi/blacklist.c
drivers/acpi/processor_core.c
drivers/acpi/processor_idle.c
drivers/acpi/sleep.c
drivers/base/core.c
drivers/edac/i7core_edac.c
drivers/virtio/virtio_ring.c
include/acpi/processor.h
include/asm-generic/vmlinux.lds.h
include/linux/acpi.h
scripts/kconfig/nconf.gui.c
scripts/package/Makefile
scripts/setlocalversion
tools/perf/Makefile
tools/perf/util/hist.c
tools/perf/util/symbol.c

index c268783bc4e7c18c2e4db792c3fba83d6bc44c71..1571c0c83dba0b0876ea52e4ff85ff69a56dab87 100644 (file)
@@ -647,3 +647,10 @@ Who:       Stefan Richter <stefanr@s5r6.in-berlin.de>
 
 ----------------------------
 
+What:  The acpi_sleep=s4_nonvs command line option
+When:  2.6.37
+Files: arch/x86/kernel/acpi/sleep.c
+Why:   superseded by acpi_sleep=nonvs
+Who:   Rafael J. Wysocki <rjw@sisk.pl>
+
+----------------------------
index 4ddb58df081e360311e22cafe40273d3176de46d..2b2407d9a6d025a8451605b104a35daa7da59b47 100644 (file)
@@ -254,8 +254,8 @@ and is between 256 and 4096 characters. It is defined in the file
                        control method, with respect to putting devices into
                        low power states, to be enforced (the ACPI 2.0 ordering
                        of _PTS is used by default).
-                       s4_nonvs prevents the kernel from saving/restoring the
-                       ACPI NVS memory during hibernation.
+                       nonvs prevents the kernel from saving/restoring the
+                       ACPI NVS memory during suspend/hibernation and resume.
                        sci_force_enable causes the kernel to set SCI_EN directly
                        on resume from S1/S3 (which is against the ACPI spec,
                        but some broken systems don't work without it).
index c5555ca13d00952f901e10268dc6d0d6ea5963c4..03483920ed6e0b12fa007c3438d3ea4401f8ec7f 100644 (file)
@@ -220,10 +220,10 @@ static int board_keymap[] = {
        KEY(4, 4, KEY_LEFTCTRL),
        KEY(4, 5, KEY_RIGHTALT),
        KEY(4, 6, KEY_LEFTSHIFT),
-       KEY(4, 8, KEY_10),
+       KEY(4, 8, KEY_F10),
 
        KEY(5, 0, KEY_Y),
-       KEY(5, 8, KEY_11),
+       KEY(5, 8, KEY_F11),
 
        KEY(6, 0, KEY_U),
 
index 2a9cd74a841e3e234b6d1a4bb6beb8e5cd1b207b..076327f2eff777b2cdbd4e15de8336ce7b03faa6 100644 (file)
@@ -8,9 +8,9 @@
  * On FSL-BookE we setup a 1:1 mapping which covers the first 2GiB of memory
  * and therefore we can only deal with memory within this range
  */
-#define KEXEC_SOURCE_MEMORY_LIMIT      (2 * 1024 * 1024 * 1024UL)
-#define KEXEC_DESTINATION_MEMORY_LIMIT (2 * 1024 * 1024 * 1024UL)
-#define KEXEC_CONTROL_MEMORY_LIMIT     (2 * 1024 * 1024 * 1024UL)
+#define KEXEC_SOURCE_MEMORY_LIMIT      (2 * 1024 * 1024 * 1024UL - 1)
+#define KEXEC_DESTINATION_MEMORY_LIMIT (2 * 1024 * 1024 * 1024UL - 1)
+#define KEXEC_CONTROL_MEMORY_LIMIT     (2 * 1024 * 1024 * 1024UL - 1)
 
 #else
 
index 2102b214a87c9ab49b7540962c2faef15251f55c..0e398cfee2c82826b6abad1eb8ece6330df6b0b4 100644 (file)
@@ -250,7 +250,9 @@ extern int hash_page(unsigned long ea, unsigned long access, unsigned long trap)
 int __hash_page_huge(unsigned long ea, unsigned long access, unsigned long vsid,
                     pte_t *ptep, unsigned long trap, int local, int ssize,
                     unsigned int shift, unsigned int mmu_psize);
-
+extern void hash_failure_debug(unsigned long ea, unsigned long access,
+                              unsigned long vsid, unsigned long trap,
+                              int ssize, int psize, unsigned long pte);
 extern int htab_bolt_mapping(unsigned long vstart, unsigned long vend,
                             unsigned long pstart, unsigned long prot,
                             int psize, int ssize);
index 9d3953983fb74759a2ab2bfbb2a5f7dd316e62ca..fed9bf6187d1a514e88677b144c5ad1273be8505 100644 (file)
@@ -414,7 +414,7 @@ static int __init early_init_dt_scan_drconf_memory(unsigned long node)
        u64 base, size, memblock_size;
        unsigned int is_kexec_kdump = 0, rngs;
 
-       ls = of_get_flat_dt_prop(node, "ibm,memblock-size", &l);
+       ls = of_get_flat_dt_prop(node, "ibm,lmb-size", &l);
        if (ls == NULL || l < dt_root_size_cells * sizeof(__be32))
                return 0;
        memblock_size = dt_mem_next_cell(dt_root_size_cells, &ls);
index a719f53921a57c390503b708c38cb4e1146a176b..3079f6b44cf531e5f1dafc8fa9e9a9e38e59dc15 100644 (file)
@@ -68,9 +68,6 @@ _GLOBAL(__hash_page_4K)
        std     r8,STK_PARM(r8)(r1)
        std     r9,STK_PARM(r9)(r1)
        
-       /* Add _PAGE_PRESENT to access */
-       ori     r4,r4,_PAGE_PRESENT
-
        /* Save non-volatile registers.
         * r31 will hold "old PTE"
         * r30 is "new PTE"
@@ -347,9 +344,6 @@ _GLOBAL(__hash_page_4K)
        std     r8,STK_PARM(r8)(r1)
        std     r9,STK_PARM(r9)(r1)
 
-       /* Add _PAGE_PRESENT to access */
-       ori     r4,r4,_PAGE_PRESENT
-
        /* Save non-volatile registers.
         * r31 will hold "old PTE"
         * r30 is "new PTE"
@@ -687,9 +681,6 @@ _GLOBAL(__hash_page_64K)
        std     r8,STK_PARM(r8)(r1)
        std     r9,STK_PARM(r9)(r1)
 
-       /* Add _PAGE_PRESENT to access */
-       ori     r4,r4,_PAGE_PRESENT
-
        /* Save non-volatile registers.
         * r31 will hold "old PTE"
         * r30 is "new PTE"
index 98f262de558526899fa5c58fe6802654bb0a5833..09dffe6efa46aeae84d62a922215f87fe0a8ca2d 100644 (file)
@@ -871,6 +871,18 @@ static inline int subpage_protection(struct mm_struct *mm, unsigned long ea)
 }
 #endif
 
+void hash_failure_debug(unsigned long ea, unsigned long access,
+                       unsigned long vsid, unsigned long trap,
+                       int ssize, int psize, unsigned long pte)
+{
+       if (!printk_ratelimit())
+               return;
+       pr_info("mm: Hashing failure ! EA=0x%lx access=0x%lx current=%s\n",
+               ea, access, current->comm);
+       pr_info("    trap=0x%lx vsid=0x%lx ssize=%d psize=%d pte=0x%lx\n",
+               trap, vsid, ssize, psize, pte);
+}
+
 /* Result code is:
  *  0 - handled
  *  1 - normal page fault
@@ -955,6 +967,17 @@ int hash_page(unsigned long ea, unsigned long access, unsigned long trap)
                return 1;
        }
 
+       /* Add _PAGE_PRESENT to the required access perm */
+       access |= _PAGE_PRESENT;
+
+       /* Pre-check access permissions (will be re-checked atomically
+        * in __hash_page_XX but this pre-check is a fast path
+        */
+       if (access & ~pte_val(*ptep)) {
+               DBG_LOW(" no access !\n");
+               return 1;
+       }
+
 #ifdef CONFIG_HUGETLB_PAGE
        if (hugeshift)
                return __hash_page_huge(ea, access, vsid, ptep, trap, local,
@@ -967,14 +990,6 @@ int hash_page(unsigned long ea, unsigned long access, unsigned long trap)
        DBG_LOW(" i-pte: %016lx %016lx\n", pte_val(*ptep),
                pte_val(*(ptep + PTRS_PER_PTE)));
 #endif
-       /* Pre-check access permissions (will be re-checked atomically
-        * in __hash_page_XX but this pre-check is a fast path
-        */
-       if (access & ~pte_val(*ptep)) {
-               DBG_LOW(" no access !\n");
-               return 1;
-       }
-
        /* Do actual hashing */
 #ifdef CONFIG_PPC_64K_PAGES
        /* If _PAGE_4K_PFN is set, make sure this is a 4k segment */
@@ -1033,6 +1048,12 @@ int hash_page(unsigned long ea, unsigned long access, unsigned long trap)
                                            local, ssize, spp);
        }
 
+       /* Dump some info in case of hash insertion failure, they should
+        * never happen so it is really useful to know if/when they do
+        */
+       if (rc == -1)
+               hash_failure_debug(ea, access, vsid, trap, ssize, psize,
+                                  pte_val(*ptep));
 #ifndef CONFIG_PPC_64K_PAGES
        DBG_LOW(" o-pte: %016lx\n", pte_val(*ptep));
 #else
@@ -1051,8 +1072,7 @@ void hash_preload(struct mm_struct *mm, unsigned long ea,
        void *pgdir;
        pte_t *ptep;
        unsigned long flags;
-       int local = 0;
-       int ssize;
+       int rc, ssize, local = 0;
 
        BUG_ON(REGION_ID(ea) != USER_REGION_ID);
 
@@ -1098,11 +1118,18 @@ void hash_preload(struct mm_struct *mm, unsigned long ea,
        /* Hash it in */
 #ifdef CONFIG_PPC_HAS_HASH_64K
        if (mm->context.user_psize == MMU_PAGE_64K)
-               __hash_page_64K(ea, access, vsid, ptep, trap, local, ssize);
+               rc = __hash_page_64K(ea, access, vsid, ptep, trap, local, ssize);
        else
 #endif /* CONFIG_PPC_HAS_HASH_64K */
-               __hash_page_4K(ea, access, vsid, ptep, trap, local, ssize,
-                              subpage_protection(pgdir, ea));
+               rc = __hash_page_4K(ea, access, vsid, ptep, trap, local, ssize,
+                                   subpage_protection(pgdir, ea));
+
+       /* Dump some info in case of hash insertion failure, they should
+        * never happen so it is really useful to know if/when they do
+        */
+       if (rc == -1)
+               hash_failure_debug(ea, access, vsid, trap, ssize,
+                                  mm->context.user_psize, pte_val(*ptep));
 
        local_irq_restore(flags);
 }
index 199539882f927620d6a435b92241e1f08f9aa4a1..cc5c273086cf833e28bc89a91bb814b09c16a4e4 100644 (file)
@@ -21,21 +21,13 @@ int __hash_page_huge(unsigned long ea, unsigned long access, unsigned long vsid,
        unsigned long old_pte, new_pte;
        unsigned long va, rflags, pa, sz;
        long slot;
-       int err = 1;
 
        BUG_ON(shift != mmu_psize_defs[mmu_psize].shift);
 
        /* Search the Linux page table for a match with va */
        va = hpt_va(ea, vsid, ssize);
 
-       /*
-        * Check the user's access rights to the page.  If access should be
-        * prevented then send the problem up to do_page_fault.
-        */
-       if (unlikely(access & ~pte_val(*ptep)))
-               goto out;
-       /*
-        * At this point, we have a pte (old_pte) which can be used to build
+       /* At this point, we have a pte (old_pte) which can be used to build
         * or update an HPTE. There are 2 cases:
         *
         * 1. There is a valid (present) pte with no associated HPTE (this is
@@ -49,9 +41,17 @@ int __hash_page_huge(unsigned long ea, unsigned long access, unsigned long vsid,
 
        do {
                old_pte = pte_val(*ptep);
-               if (old_pte & _PAGE_BUSY)
-                       goto out;
+               /* If PTE busy, retry the access */
+               if (unlikely(old_pte & _PAGE_BUSY))
+                       return 0;
+               /* If PTE permissions don't match, take page fault */
+               if (unlikely(access & ~old_pte))
+                       return 1;
+               /* Try to lock the PTE, add ACCESSED and DIRTY if it was
+                * a write access */
                new_pte = old_pte | _PAGE_BUSY | _PAGE_ACCESSED;
+               if (access & _PAGE_RW)
+                       new_pte |= _PAGE_DIRTY;
        } while(old_pte != __cmpxchg_u64((unsigned long *)ptep,
                                         old_pte, new_pte));
 
@@ -121,8 +121,16 @@ repeat:
                         }
                }
 
-               if (unlikely(slot == -2))
-                       panic("hash_huge_page: pte_insert failed\n");
+               /*
+                * Hypervisor failure. Restore old pte and return -1
+                * similar to __hash_page_*
+                */
+               if (unlikely(slot == -2)) {
+                       *ptep = __pte(old_pte);
+                       hash_failure_debug(ea, access, vsid, trap, ssize,
+                                          mmu_psize, old_pte);
+                       return -1;
+               }
 
                new_pte |= (slot << 12) & (_PAGE_F_SECOND | _PAGE_F_GIX);
        }
@@ -131,9 +139,5 @@ repeat:
         * No need to use ldarx/stdcx here
         */
        *ptep = __pte(new_pte & ~_PAGE_BUSY);
-
-       err = 0;
-
- out:
-       return err;
+       return 0;
 }
index f47364585ecd0bce3df61a5397fa3f9d0ccf7feb..aa731af720c04e4816f0e9826d7f05109631bccb 100644 (file)
@@ -398,15 +398,15 @@ static int of_get_drconf_memory(struct device_node *memory, const u32 **dm)
 }
 
 /*
- * Retreive and validate the ibm,memblock-size property for drconf memory
+ * Retreive and validate the ibm,lmb-size property for drconf memory
  * from the device tree.
  */
-static u64 of_get_memblock_size(struct device_node *memory)
+static u64 of_get_lmb_size(struct device_node *memory)
 {
        const u32 *prop;
        u32 len;
 
-       prop = of_get_property(memory, "ibm,memblock-size", &len);
+       prop = of_get_property(memory, "ibm,lmb-size", &len);
        if (!prop || len < sizeof(unsigned int))
                return 0;
 
@@ -562,7 +562,7 @@ static unsigned long __init numa_enforce_memory_limit(unsigned long start,
 static inline int __init read_usm_ranges(const u32 **usm)
 {
        /*
-        * For each memblock in ibm,dynamic-memory a corresponding
+        * For each lmb in ibm,dynamic-memory a corresponding
         * entry in linux,drconf-usable-memory property contains
         * a counter followed by that many (base, size) duple.
         * read the counter from linux,drconf-usable-memory
@@ -578,7 +578,7 @@ static void __init parse_drconf_memory(struct device_node *memory)
 {
        const u32 *dm, *usm;
        unsigned int n, rc, ranges, is_kexec_kdump = 0;
-       unsigned long memblock_size, base, size, sz;
+       unsigned long lmb_size, base, size, sz;
        int nid;
        struct assoc_arrays aa;
 
@@ -586,8 +586,8 @@ static void __init parse_drconf_memory(struct device_node *memory)
        if (!n)
                return;
 
-       memblock_size = of_get_memblock_size(memory);
-       if (!memblock_size)
+       lmb_size = of_get_lmb_size(memory);
+       if (!lmb_size)
                return;
 
        rc = of_get_assoc_arrays(memory, &aa);
@@ -611,7 +611,7 @@ static void __init parse_drconf_memory(struct device_node *memory)
                        continue;
 
                base = drmem.base_addr;
-               size = memblock_size;
+               size = lmb_size;
                ranges = 1;
 
                if (is_kexec_kdump) {
@@ -1072,7 +1072,7 @@ static int hot_add_drconf_scn_to_nid(struct device_node *memory,
 {
        const u32 *dm;
        unsigned int drconf_cell_cnt, rc;
-       unsigned long memblock_size;
+       unsigned long lmb_size;
        struct assoc_arrays aa;
        int nid = -1;
 
@@ -1080,8 +1080,8 @@ static int hot_add_drconf_scn_to_nid(struct device_node *memory,
        if (!drconf_cell_cnt)
                return -1;
 
-       memblock_size = of_get_memblock_size(memory);
-       if (!memblock_size)
+       lmb_size = of_get_lmb_size(memory);
+       if (!lmb_size)
                return -1;
 
        rc = of_get_assoc_arrays(memory, &aa);
@@ -1100,7 +1100,7 @@ static int hot_add_drconf_scn_to_nid(struct device_node *memory,
                        continue;
 
                if ((scn_addr < drmem.base_addr)
-                   || (scn_addr >= (drmem.base_addr + memblock_size)))
+                   || (scn_addr >= (drmem.base_addr + lmb_size)))
                        continue;
 
                nid = of_drconf_to_nid_single(&drmem, &aa);
index deab5f9460907891a3134a1d7f6bcdb459796dcf..bc88036641406bf283aa96f8c3b4609a3ecef85a 100644 (file)
@@ -69,7 +69,7 @@ static int pseries_remove_memory(struct device_node *np)
        const char *type;
        const unsigned int *regs;
        unsigned long base;
-       unsigned int memblock_size;
+       unsigned int lmb_size;
        int ret = -EINVAL;
 
        /*
@@ -87,9 +87,9 @@ static int pseries_remove_memory(struct device_node *np)
                return ret;
 
        base = *(unsigned long *)regs;
-       memblock_size = regs[3];
+       lmb_size = regs[3];
 
-       ret = pseries_remove_memblock(base, memblock_size);
+       ret = pseries_remove_memblock(base, lmb_size);
        return ret;
 }
 
@@ -98,7 +98,7 @@ static int pseries_add_memory(struct device_node *np)
        const char *type;
        const unsigned int *regs;
        unsigned long base;
-       unsigned int memblock_size;
+       unsigned int lmb_size;
        int ret = -EINVAL;
 
        /*
@@ -116,36 +116,36 @@ static int pseries_add_memory(struct device_node *np)
                return ret;
 
        base = *(unsigned long *)regs;
-       memblock_size = regs[3];
+       lmb_size = regs[3];
 
        /*
         * Update memory region to represent the memory add
         */
-       ret = memblock_add(base, memblock_size);
+       ret = memblock_add(base, lmb_size);
        return (ret < 0) ? -EINVAL : 0;
 }
 
 static int pseries_drconf_memory(unsigned long *base, unsigned int action)
 {
        struct device_node *np;
-       const unsigned long *memblock_size;
+       const unsigned long *lmb_size;
        int rc;
 
        np = of_find_node_by_path("/ibm,dynamic-reconfiguration-memory");
        if (!np)
                return -EINVAL;
 
-       memblock_size = of_get_property(np, "ibm,memblock-size", NULL);
-       if (!memblock_size) {
+       lmb_size = of_get_property(np, "ibm,lmb-size", NULL);
+       if (!lmb_size) {
                of_node_put(np);
                return -EINVAL;
        }
 
        if (action == PSERIES_DRCONF_MEM_ADD) {
-               rc = memblock_add(*base, *memblock_size);
+               rc = memblock_add(*base, *lmb_size);
                rc = (rc < 0) ? -EINVAL : 0;
        } else if (action == PSERIES_DRCONF_MEM_REMOVE) {
-               rc = pseries_remove_memblock(*base, *memblock_size);
+               rc = pseries_remove_memblock(*base, *lmb_size);
        } else {
                rc = -EINVAL;
        }
index 2e837f5080fe56d3ad0c87d308564cf157147624..fb7a5f052e2b8766d11115e3f7fc174fadf6ac2f 100644 (file)
@@ -145,6 +145,15 @@ int acpi_processor_ffh_cstate_probe(unsigned int cpu,
                percpu_entry->states[cx->index].eax = cx->address;
                percpu_entry->states[cx->index].ecx = MWAIT_ECX_INTERRUPT_BREAK;
        }
+
+       /*
+        * For _CST FFH on Intel, if GAS.access_size bit 1 is cleared,
+        * then we should skip checking BM_STS for this C-state.
+        * ref: "Intel Processor Vendor-Specific ACPI Interface Specification"
+        */
+       if ((c->x86_vendor == X86_VENDOR_INTEL) && !(reg->access_size & 0x2))
+               cx->bm_sts_skip = 1;
+
        return retval;
 }
 EXPORT_SYMBOL_GPL(acpi_processor_ffh_cstate_probe);
index 82e508677b91116ec8428e434ae164a8390084bf..fcc3c61fdecc0a8e73859868f5f863c9fdb315e3 100644 (file)
@@ -157,9 +157,14 @@ static int __init acpi_sleep_setup(char *str)
 #ifdef CONFIG_HIBERNATION
                if (strncmp(str, "s4_nohwsig", 10) == 0)
                        acpi_no_s4_hw_signature();
-               if (strncmp(str, "s4_nonvs", 8) == 0)
-                       acpi_s4_no_nvs();
+               if (strncmp(str, "s4_nonvs", 8) == 0) {
+                       pr_warning("ACPI: acpi_sleep=s4_nonvs is deprecated, "
+                                       "please use acpi_sleep=nonvs instead");
+                       acpi_nvs_nosave();
+               }
 #endif
+               if (strncmp(str, "nonvs", 5) == 0)
+                       acpi_nvs_nosave();
                if (strncmp(str, "old_ordering", 12) == 0)
                        acpi_old_suspend_ordering();
                str = strchr(str, ',');
index d97b8dce16681ba90886a3b0e5546cf5b7060ce8..18b3f1468b7daeebd94dbe43216a4078951d9972 100644 (file)
@@ -70,6 +70,7 @@ acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
 acpi_status acpi_enable(void)
 {
        acpi_status status;
+       int retry;
 
        ACPI_FUNCTION_TRACE(acpi_enable);
 
@@ -98,16 +99,18 @@ acpi_status acpi_enable(void)
 
        /* Sanity check that transition succeeded */
 
-       if (acpi_hw_get_mode() != ACPI_SYS_MODE_ACPI) {
-               ACPI_ERROR((AE_INFO,
-                           "Hardware did not enter ACPI mode"));
-               return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE);
+       for (retry = 0; retry < 30000; ++retry) {
+               if (acpi_hw_get_mode() == ACPI_SYS_MODE_ACPI) {
+                       if (retry != 0)
+                               ACPI_WARNING((AE_INFO,
+                               "Platform took > %d00 usec to enter ACPI mode", retry));
+                       return_ACPI_STATUS(AE_OK);
+               }
+               acpi_os_stall(100);     /* 100 usec */
        }
 
-       ACPI_DEBUG_PRINT((ACPI_DB_INIT,
-                         "Transition to ACPI mode successful\n"));
-
-       return_ACPI_STATUS(AE_OK);
+       ACPI_ERROR((AE_INFO, "Hardware did not enter ACPI mode"));
+       return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE);
 }
 
 ACPI_EXPORT_SYMBOL(acpi_enable)
index 3026e3fa83efc82923daf64e1f00fd2b59f23848..dc58402b0a177a4e03e8dc54e7a094804edc1d36 100644 (file)
@@ -868,9 +868,15 @@ static void acpi_battery_remove_fs(struct acpi_device *device)
 static void acpi_battery_notify(struct acpi_device *device, u32 event)
 {
        struct acpi_battery *battery = acpi_driver_data(device);
+#ifdef CONFIG_ACPI_SYSFS_POWER
+       struct device *old;
+#endif
 
        if (!battery)
                return;
+#ifdef CONFIG_ACPI_SYSFS_POWER
+       old = battery->bat.dev;
+#endif
        acpi_battery_update(battery);
        acpi_bus_generate_proc_event(device, event,
                                     acpi_battery_present(battery));
@@ -879,7 +885,7 @@ static void acpi_battery_notify(struct acpi_device *device, u32 event)
                                        acpi_battery_present(battery));
 #ifdef CONFIG_ACPI_SYSFS_POWER
        /* acpi_battery_update could remove power_supply object */
-       if (battery->bat.dev)
+       if (old && battery->bat.dev)
                power_supply_changed(&battery->bat);
 #endif
 }
index 01381be05e96b3dda60b1d753b81ecf5dc610dcd..2bb28b9d91c4c2643106ed0d63069ae85799d136 100644 (file)
@@ -214,7 +214,7 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
        .ident = "Sony VGN-SR290J",
        .matches = {
                     DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
-                    DMI_MATCH(DMI_PRODUCT_NAME, "Sony VGN-SR290J"),
+                    DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SR290J"),
                },
        },
        {
index 51284351418f4a5cb0f176e1475d94db1e5e4b83..e9699aaed1092874b0f275d2ca86a8142850db1c 100644 (file)
@@ -223,7 +223,7 @@ static bool processor_physically_present(acpi_handle handle)
        type = (acpi_type == ACPI_TYPE_DEVICE) ? 1 : 0;
        cpuid = acpi_get_cpuid(handle, type, acpi_id);
 
-       if (cpuid == -1)
+       if ((cpuid == -1) && (num_possible_cpus() > 1))
                return false;
 
        return true;
index b1b385692f46e09f05dd55882ed3ea9c73039b74..e9a8026d39f091444ddcf90446f008fc407cc9c8 100644 (file)
@@ -76,14 +76,19 @@ static unsigned int max_cstate __read_mostly = ACPI_PROCESSOR_MAX_POWER;
 module_param(max_cstate, uint, 0000);
 static unsigned int nocst __read_mostly;
 module_param(nocst, uint, 0000);
+static int bm_check_disable __read_mostly;
+module_param(bm_check_disable, uint, 0000);
 
 static unsigned int latency_factor __read_mostly = 2;
 module_param(latency_factor, uint, 0644);
 
+#ifdef CONFIG_ACPI_PROCFS
 static u64 us_to_pm_timer_ticks(s64 t)
 {
        return div64_u64(t * PM_TIMER_FREQUENCY, 1000000);
 }
+#endif
+
 /*
  * IBM ThinkPad R40e crashes mysteriously when going into C2 or C3.
  * For now disable this. Probably a bug somewhere else.
@@ -763,6 +768,9 @@ static int acpi_idle_bm_check(void)
 {
        u32 bm_status = 0;
 
+       if (bm_check_disable)
+               return 0;
+
        acpi_read_bit_register(ACPI_BITREG_BUS_MASTER_STATUS, &bm_status);
        if (bm_status)
                acpi_write_bit_register(ACPI_BITREG_BUS_MASTER_STATUS, 1);
@@ -947,7 +955,7 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
        if (acpi_idle_suspend)
                return(acpi_idle_enter_c1(dev, state));
 
-       if (acpi_idle_bm_check()) {
+       if (!cx->bm_sts_skip && acpi_idle_bm_check()) {
                if (dev->safe_state) {
                        dev->last_state = dev->safe_state;
                        return dev->safe_state->enter(dev, dev->safe_state);
index 5b7c52e4a00f09001becab5df101e7e5fa4dabc8..2862c781b37266aecee8052dac047aa2bcb31ef2 100644 (file)
@@ -81,6 +81,20 @@ static int acpi_sleep_prepare(u32 acpi_state)
 #ifdef CONFIG_ACPI_SLEEP
 static u32 acpi_target_sleep_state = ACPI_STATE_S0;
 
+/*
+ * The ACPI specification wants us to save NVS memory regions during hibernation
+ * and to restore them during the subsequent resume.  Windows does that also for
+ * suspend to RAM.  However, it is known that this mechanism does not work on
+ * all machines, so we allow the user to disable it with the help of the
+ * 'acpi_sleep=nonvs' kernel command line option.
+ */
+static bool nvs_nosave;
+
+void __init acpi_nvs_nosave(void)
+{
+       nvs_nosave = true;
+}
+
 /*
  * ACPI 1.0 wants us to execute _PTS before suspending devices, so we allow the
  * user to request that behavior by using the 'acpi_old_suspend_ordering'
@@ -197,8 +211,7 @@ static int acpi_suspend_begin(suspend_state_t pm_state)
        u32 acpi_state = acpi_suspend_states[pm_state];
        int error = 0;
 
-       error = suspend_nvs_alloc();
-
+       error = nvs_nosave ? 0 : suspend_nvs_alloc();
        if (error)
                return error;
 
@@ -388,20 +401,6 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
 #endif /* CONFIG_SUSPEND */
 
 #ifdef CONFIG_HIBERNATION
-/*
- * The ACPI specification wants us to save NVS memory regions during hibernation
- * and to restore them during the subsequent resume.  However, it is not certain
- * if this mechanism is going to work on all machines, so we allow the user to
- * disable this mechanism using the 'acpi_sleep=s4_nonvs' kernel command line
- * option.
- */
-static bool s4_no_nvs;
-
-void __init acpi_s4_no_nvs(void)
-{
-       s4_no_nvs = true;
-}
-
 static unsigned long s4_hardware_signature;
 static struct acpi_table_facs *facs;
 static bool nosigcheck;
@@ -415,7 +414,7 @@ static int acpi_hibernation_begin(void)
 {
        int error;
 
-       error = s4_no_nvs ? 0 : suspend_nvs_alloc();
+       error = nvs_nosave ? 0 : suspend_nvs_alloc();
        if (!error) {
                acpi_target_sleep_state = ACPI_STATE_S4;
                acpi_sleep_tts_switch(acpi_target_sleep_state);
@@ -510,7 +509,7 @@ static int acpi_hibernation_begin_old(void)
        error = acpi_sleep_prepare(ACPI_STATE_S4);
 
        if (!error) {
-               if (!s4_no_nvs)
+               if (!nvs_nosave)
                        error = suspend_nvs_alloc();
                if (!error)
                        acpi_target_sleep_state = ACPI_STATE_S4;
index 9630fbdf4e6c210eb09a92f4489bb55f60e3b3a7..9b9d3bd54e3a5359f8f0aa3e833ab5380ea11a47 100644 (file)
@@ -673,7 +673,7 @@ static struct kobject *get_device_parent(struct device *dev,
                 */
                if (parent == NULL)
                        parent_kobj = virtual_device_parent(dev);
-               else if (parent->class)
+               else if (parent->class && !dev->class->ns_type)
                        return &parent->kobj;
                else
                        parent_kobj = &parent->kobj;
index cc9357da0e3442ad9666a415f80b3dd29321b6a0..e0187d16dd7c53fd240b58d62005e4c17df14bc4 100644 (file)
@@ -1300,7 +1300,7 @@ int i7core_get_onedevice(struct pci_dev **prev, int devno,
                if (devno == 0)
                        return -ENODEV;
 
-               i7core_printk(KERN_ERR,
+               i7core_printk(KERN_INFO,
                        "Device not found: dev %02x.%d PCI ID %04x:%04x\n",
                        dev_descr->dev, dev_descr->func,
                        PCI_VENDOR_ID_INTEL, dev_descr->dev_id);
index afe7e21dd0ae8a7dce4db7ee1a480ce931c42247..1475ed6b575fd7a9984380b9e0841ac5f019a306 100644 (file)
@@ -164,7 +164,8 @@ int virtqueue_add_buf_gfp(struct virtqueue *_vq,
                          gfp_t gfp)
 {
        struct vring_virtqueue *vq = to_vvq(_vq);
-       unsigned int i, avail, head, uninitialized_var(prev);
+       unsigned int i, avail, uninitialized_var(prev);
+       int head;
 
        START_USE(vq);
 
@@ -174,7 +175,7 @@ int virtqueue_add_buf_gfp(struct virtqueue *_vq,
         * buffers, then go indirect. FIXME: tune this threshold */
        if (vq->indirect && (out + in) > 1 && vq->num_free) {
                head = vring_add_indirect(vq, sg, out, in, gfp);
-               if (head != vq->vring.num)
+               if (likely(head >= 0))
                        goto add_head;
        }
 
index da565a48240e5ad93df5233273bb58301e940752..a68ca8a11a53a6cc06ff32190c16d4f84279ac29 100644 (file)
@@ -48,7 +48,7 @@ struct acpi_power_register {
        u8 space_id;
        u8 bit_width;
        u8 bit_offset;
-       u8 reserved;
+       u8 access_size;
        u64 address;
 } __attribute__ ((packed));
 
@@ -63,6 +63,7 @@ struct acpi_processor_cx {
        u32 power;
        u32 usage;
        u64 time;
+       u8 bm_sts_skip;
        char desc[ACPI_CX_DESC_LEN];
 };
 
index 48c5299cbf26e796e3188f397faa96cd3889a112..030a954ed292a59feae0bbf8437f370127b22bd6 100644 (file)
 /* Align . to a 8 byte boundary equals to maximum function alignment. */
 #define ALIGN_FUNCTION()  . = ALIGN(8)
 
+/*
+ * Align to a 32 byte boundary equal to the
+ * alignment gcc 4.5 uses for a struct
+ */
+#define STRUCT_ALIGN() . = ALIGN(32)
+
 /* The actual configuration determine if the init/exit sections
  * are handled as text/data or they can be discarded (which
  * often happens at runtime)
        LIKELY_PROFILE()                                                \
        BRANCH_PROFILE()                                                \
        TRACE_PRINTKS()                                                 \
+                                                                       \
+       STRUCT_ALIGN();                                                 \
        FTRACE_EVENTS()                                                 \
+                                                                       \
+       STRUCT_ALIGN();                                                 \
        TRACE_SYSCALLS()
 
 /*
  */
 #define INIT_TASK_DATA_SECTION(align)                                  \
        . = ALIGN(align);                                               \
-       .data..init_task : {                                            \
+       .data..init_task :  AT(ADDR(.data..init_task) - LOAD_OFFSET) {  \
                INIT_TASK_DATA(align)                                   \
        }
 
index 224a38c960d4c01830eb96987325d88aee33a2bf..ccf94dc5acdf0ba8cc4f836968f103f542ff43b6 100644 (file)
@@ -253,7 +253,7 @@ int acpi_resources_are_enforced(void);
 #ifdef CONFIG_PM_SLEEP
 void __init acpi_no_s4_hw_signature(void);
 void __init acpi_old_suspend_ordering(void);
-void __init acpi_s4_no_nvs(void);
+void __init acpi_nvs_nosave(void);
 #endif /* CONFIG_PM_SLEEP */
 
 struct acpi_osc_context {
index 115edb437fb1eafaf30101e747b2a97a2e23a5b2..a9d9344e136504781c52b0e59361fea6b10be06b 100644 (file)
@@ -226,7 +226,7 @@ void fill_window(WINDOW *win, const char *text)
                int len = get_line_length(line);
                strncpy(tmp, line, min(len, x));
                tmp[len] = '\0';
-               mvwprintw(win, i, 0, tmp);
+               mvwprintw(win, i, 0, "%s", tmp);
        }
 }
 
index 3a681ef25306ba0a98cfaedf7412c24c9af11adb..d2c29b63addaa04dbd3df94d1adbfa9bc3ff8518 100644 (file)
@@ -44,7 +44,7 @@ rpm-pkg rpm: $(objtree)/kernel.spec FORCE
        fi
        $(MAKE) clean
        $(PREV) ln -sf $(srctree) $(KERNELPATH)
-       $(CONFIG_SHELL) $(srctree)/scripts/setlocalversion --scm-only > $(objtree)/.scmversion
+       $(CONFIG_SHELL) $(srctree)/scripts/setlocalversion --save-scmversion
        $(PREV) tar -cz $(RCS_TAR_IGNORE) -f $(KERNELPATH).tar.gz $(KERNELPATH)/.
        $(PREV) rm $(KERNELPATH)
        rm -f $(objtree)/.scmversion
index d6a866ed1835c8f1ee4524c6bb26df554c83c6e1..64a9cb5556cd0f90dab503c6b8cd96e2fa7bff1d 100755 (executable)
 #
 
 usage() {
-       echo "Usage: $0 [--scm-only] [srctree]" >&2
+       echo "Usage: $0 [--save-scmversion] [srctree]" >&2
        exit 1
 }
 
 scm_only=false
 srctree=.
-if test "$1" = "--scm-only"; then
+if test "$1" = "--save-scmversion"; then
        scm_only=true
        shift
 fi
@@ -30,11 +30,12 @@ fi
 
 scm_version()
 {
-       local short=false
+       local short
+       short=false
 
        cd "$srctree"
        if test -e .scmversion; then
-               cat "$_"
+               cat .scmversion
                return
        fi
        if test "$1" = "--short"; then
@@ -131,12 +132,15 @@ collect_files()
 }
 
 if $scm_only; then
-       scm_version
+       if test ! -e .scmversion; then
+               res=$(scm_version)
+               echo "$res" >.scmversion
+       fi
        exit
 fi
 
 if test -e include/config/auto.conf; then
-       source "$_"
+       . include/config/auto.conf
 else
        echo "Error: kernelrelease not valid - run 'make prepare' to update it"
        exit 1
index 3d8f31ed771df18770b1e31361485d39400b5476..d75c28a825f5356d9b0dbe16459111d3b6c5e81a 100644 (file)
@@ -600,30 +600,32 @@ endif
 
 ifdef NO_DEMANGLE
        BASIC_CFLAGS += -DNO_DEMANGLE
-else ifdef HAVE_CPLUS_DEMANGLE
-       EXTLIBS += -liberty
-       BASIC_CFLAGS += -DHAVE_CPLUS_DEMANGLE
 else
-       has_bfd := $(shell sh -c "(echo '\#include <bfd.h>'; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) -lbfd "$(QUIET_STDERR)" && echo y")
-
-       ifeq ($(has_bfd),y)
-               EXTLIBS += -lbfd
+       ifdef HAVE_CPLUS_DEMANGLE
+               EXTLIBS += -liberty
+               BASIC_CFLAGS += -DHAVE_CPLUS_DEMANGLE
        else
-               has_bfd_iberty := $(shell sh -c "(echo '\#include <bfd.h>'; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) -lbfd -liberty "$(QUIET_STDERR)" && echo y")
-               ifeq ($(has_bfd_iberty),y)
-                       EXTLIBS += -lbfd -liberty
+               has_bfd := $(shell sh -c "(echo '\#include <bfd.h>'; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) -lbfd "$(QUIET_STDERR)" && echo y")
+
+               ifeq ($(has_bfd),y)
+                       EXTLIBS += -lbfd
                else
-                       has_bfd_iberty_z := $(shell sh -c "(echo '\#include <bfd.h>'; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) -lbfd -liberty -lz "$(QUIET_STDERR)" && echo y")
-                       ifeq ($(has_bfd_iberty_z),y)
-                               EXTLIBS += -lbfd -liberty -lz
+                       has_bfd_iberty := $(shell sh -c "(echo '\#include <bfd.h>'; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) -lbfd -liberty "$(QUIET_STDERR)" && echo y")
+                       ifeq ($(has_bfd_iberty),y)
+                               EXTLIBS += -lbfd -liberty
                        else
-                               has_cplus_demangle := $(shell sh -c "(echo 'extern char *cplus_demangle(const char *, int);'; echo 'int main(void) { cplus_demangle(0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) -liberty "$(QUIET_STDERR)" && echo y")
-                               ifeq ($(has_cplus_demangle),y)
-                                       EXTLIBS += -liberty
-                                       BASIC_CFLAGS += -DHAVE_CPLUS_DEMANGLE
+                               has_bfd_iberty_z := $(shell sh -c "(echo '\#include <bfd.h>'; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) -lbfd -liberty -lz "$(QUIET_STDERR)" && echo y")
+                               ifeq ($(has_bfd_iberty_z),y)
+                                       EXTLIBS += -lbfd -liberty -lz
                                else
-                                       msg := $(warning No bfd.h/libbfd found, install binutils-dev[el]/zlib-static to gain symbol demangling)
-                                       BASIC_CFLAGS += -DNO_DEMANGLE
+                                       has_cplus_demangle := $(shell sh -c "(echo 'extern char *cplus_demangle(const char *, int);'; echo 'int main(void) { cplus_demangle(0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) -liberty "$(QUIET_STDERR)" && echo y")
+                                       ifeq ($(has_cplus_demangle),y)
+                                               EXTLIBS += -liberty
+                                               BASIC_CFLAGS += -DHAVE_CPLUS_DEMANGLE
+                                       else
+                                               msg := $(warning No bfd.h/libbfd found, install binutils-dev[el]/zlib-static to gain symbol demangling)
+                                               BASIC_CFLAGS += -DNO_DEMANGLE
+                                       endif
                                endif
                        endif
                endif
index 07f89b66b318e43748f666f495f87b75f6a34462..784ee0bdda7754f329428e40fa790a22dd331568 100644 (file)
@@ -631,9 +631,14 @@ int hist_entry__fprintf(struct hist_entry *self, struct hists *pair_hists,
                        u64 session_total)
 {
        char bf[512];
-       hist_entry__snprintf(self, bf, sizeof(bf), pair_hists,
-                            show_displacement, displacement,
-                            true, session_total);
+       int ret;
+
+       ret = hist_entry__snprintf(self, bf, sizeof(bf), pair_hists,
+                                  show_displacement, displacement,
+                                  true, session_total);
+       if (!ret)
+               return 0;
+
        return fprintf(fp, "%s\n", bf);
 }
 
@@ -762,6 +767,7 @@ size_t hists__fprintf(struct hists *self, struct hists *pair,
 print_entries:
        for (nd = rb_first(&self->entries); nd; nd = rb_next(nd)) {
                struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
+               int cnt;
 
                if (show_displacement) {
                        if (h->pair != NULL)
@@ -771,8 +777,13 @@ print_entries:
                                displacement = 0;
                        ++position;
                }
-               ret += hist_entry__fprintf(h, pair, show_displacement,
-                                          displacement, fp, self->stats.total_period);
+               cnt = hist_entry__fprintf(h, pair, show_displacement,
+                                         displacement, fp, self->stats.total_period);
+               /* Ignore those that didn't match the parent filter */
+               if (!cnt)
+                       continue;
+
+               ret += cnt;
 
                if (symbol_conf.use_callchain)
                        ret += hist_entry__fprintf_callchain(h, fp, self->stats.total_period);
@@ -965,13 +976,17 @@ static int hist_entry__parse_objdump_line(struct hist_entry *self, FILE *file,
                 * Parse hexa addresses followed by ':'
                 */
                line_ip = strtoull(tmp, &tmp2, 16);
-               if (*tmp2 != ':' || tmp == tmp2)
+               if (*tmp2 != ':' || tmp == tmp2 || tmp2[1] == '\0')
                        line_ip = -1;
        }
 
        if (line_ip != -1) {
-               u64 start = map__rip_2objdump(self->ms.map, sym->start);
+               u64 start = map__rip_2objdump(self->ms.map, sym->start),
+                   end = map__rip_2objdump(self->ms.map, sym->end);
+
                offset = line_ip - start;
+               if (offset < 0 || (u64)line_ip > end)
+                       offset = -1;
        }
 
        objdump_line = objdump_line__new(offset, line);
index b63e5713849f3abfa25bf8160e8b458e7adf913e..5b276833e2bfea3bae9115f2555b32e3a3b8b628 100644 (file)
@@ -1443,6 +1443,7 @@ static int map_groups__set_modules_path_dir(struct map_groups *self,
 {
        struct dirent *dent;
        DIR *dir = opendir(dir_name);
+       int ret = 0;
 
        if (!dir) {
                pr_debug("%s: cannot open %s dir\n", __func__, dir_name);
@@ -1465,8 +1466,9 @@ static int map_groups__set_modules_path_dir(struct map_groups *self,
 
                        snprintf(path, sizeof(path), "%s/%s",
                                 dir_name, dent->d_name);
-                       if (map_groups__set_modules_path_dir(self, path) < 0)
-                               goto failure;
+                       ret = map_groups__set_modules_path_dir(self, path);
+                       if (ret < 0)
+                               goto out;
                } else {
                        char *dot = strrchr(dent->d_name, '.'),
                             dso_name[PATH_MAX];
@@ -1487,17 +1489,18 @@ static int map_groups__set_modules_path_dir(struct map_groups *self,
                                 dir_name, dent->d_name);
 
                        long_name = strdup(path);
-                       if (long_name == NULL)
-                               goto failure;
+                       if (long_name == NULL) {
+                               ret = -1;
+                               goto out;
+                       }
                        dso__set_long_name(map->dso, long_name);
                        dso__kernel_module_get_build_id(map->dso, "");
                }
        }
 
-       return 0;
-failure:
+out:
        closedir(dir);
-       return -1;
+       return ret;
 }
 
 static char *get_kernel_version(const char *root_dir)