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authorLinus Torvalds <torvalds@linux-foundation.org>2017-05-02 09:54:56 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-05-02 09:54:56 +0300
commitd3b5d35290d729a2518af00feca867385a1b08fa (patch)
tree7b56c0863d59bc57f7c7dcf5d5665c56b05f1d1b /drivers
parentaa2a4b6569d5b10491b606a86e574dff3852597a (diff)
parent71389703839ebe9cb426c72d5f0bd549592e583c (diff)
downloadlinux-d3b5d35290d729a2518af00feca867385a1b08fa.tar.xz
Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 mm updates from Ingo Molnar: "The main x86 MM changes in this cycle were: - continued native kernel PCID support preparation patches to the TLB flushing code (Andy Lutomirski) - various fixes related to 32-bit compat syscall returning address over 4Gb in applications, launched from 64-bit binaries - motivated by C/R frameworks such as Virtuozzo. (Dmitry Safonov) - continued Intel 5-level paging enablement: in particular the conversion of x86 GUP to the generic GUP code. (Kirill A. Shutemov) - x86/mpx ABI corner case fixes/enhancements (Joerg Roedel) - ... plus misc updates, fixes and cleanups" * 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (62 commits) mm, zone_device: Replace {get, put}_zone_device_page() with a single reference to fix pmem crash x86/mm: Fix flush_tlb_page() on Xen x86/mm: Make flush_tlb_mm_range() more predictable x86/mm: Remove flush_tlb() and flush_tlb_current_task() x86/vm86/32: Switch to flush_tlb_mm_range() in mark_screen_rdonly() x86/mm/64: Fix crash in remove_pagetable() Revert "x86/mm/gup: Switch GUP to the generic get_user_page_fast() implementation" x86/boot/e820: Remove a redundant self assignment x86/mm: Fix dump pagetables for 4 levels of page tables x86/mpx, selftests: Only check bounds-vs-shadow when we keep shadow x86/mpx: Correctly report do_mpx_bt_fault() failures to user-space Revert "x86/mm/numa: Remove numa_nodemask_from_meminfo()" x86/espfix: Add support for 5-level paging x86/kasan: Extend KASAN to support 5-level paging x86/mm: Add basic defines/helpers for CONFIG_X86_5LEVEL=y x86/paravirt: Add 5-level support to the paravirt code x86/mm: Define virtual memory map for 5-level paging x86/asm: Remove __VIRTUAL_MASK_SHIFT==47 assert x86/boot: Detect 5-level paging support x86/mm/numa: Remove numa_nodemask_from_meminfo() ...
Diffstat (limited to 'drivers')
-rw-r--r--drivers/dax/pmem.c2
-rw-r--r--drivers/lguest/x86/core.c6
-rw-r--r--drivers/nvdimm/pmem.c13
-rw-r--r--drivers/pnp/pnpbios/bioscalls.c10
4 files changed, 20 insertions, 11 deletions
diff --git a/drivers/dax/pmem.c b/drivers/dax/pmem.c
index 033f49b31fdc..cb0d742fa23f 100644
--- a/drivers/dax/pmem.c
+++ b/drivers/dax/pmem.c
@@ -43,6 +43,7 @@ static void dax_pmem_percpu_exit(void *data)
struct dax_pmem *dax_pmem = to_dax_pmem(ref);
dev_dbg(dax_pmem->dev, "%s\n", __func__);
+ wait_for_completion(&dax_pmem->cmp);
percpu_ref_exit(ref);
}
@@ -53,7 +54,6 @@ static void dax_pmem_percpu_kill(void *data)
dev_dbg(dax_pmem->dev, "%s\n", __func__);
percpu_ref_kill(ref);
- wait_for_completion(&dax_pmem->cmp);
}
static int dax_pmem_probe(struct device *dev)
diff --git a/drivers/lguest/x86/core.c b/drivers/lguest/x86/core.c
index d71f6323ac00..b4f79b923aea 100644
--- a/drivers/lguest/x86/core.c
+++ b/drivers/lguest/x86/core.c
@@ -504,7 +504,7 @@ void __init lguest_arch_host_init(void)
* byte, not the size, hence the "-1").
*/
state->host_gdt_desc.size = GDT_SIZE-1;
- state->host_gdt_desc.address = (long)get_cpu_gdt_table(i);
+ state->host_gdt_desc.address = (long)get_cpu_gdt_rw(i);
/*
* All CPUs on the Host use the same Interrupt Descriptor
@@ -554,8 +554,8 @@ void __init lguest_arch_host_init(void)
* The Host needs to be able to use the LGUEST segments on this
* CPU, too, so put them in the Host GDT.
*/
- get_cpu_gdt_table(i)[GDT_ENTRY_LGUEST_CS] = FULL_EXEC_SEGMENT;
- get_cpu_gdt_table(i)[GDT_ENTRY_LGUEST_DS] = FULL_SEGMENT;
+ get_cpu_gdt_rw(i)[GDT_ENTRY_LGUEST_CS] = FULL_EXEC_SEGMENT;
+ get_cpu_gdt_rw(i)[GDT_ENTRY_LGUEST_DS] = FULL_SEGMENT;
}
/*
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index 5b536be5a12e..fbc640bf06b0 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -25,6 +25,7 @@
#include <linux/badblocks.h>
#include <linux/memremap.h>
#include <linux/vmalloc.h>
+#include <linux/blk-mq.h>
#include <linux/pfn_t.h>
#include <linux/slab.h>
#include <linux/pmem.h>
@@ -231,6 +232,11 @@ static void pmem_release_queue(void *q)
blk_cleanup_queue(q);
}
+static void pmem_freeze_queue(void *q)
+{
+ blk_freeze_queue_start(q);
+}
+
static void pmem_release_disk(void *disk)
{
del_gendisk(disk);
@@ -284,6 +290,9 @@ static int pmem_attach_disk(struct device *dev,
if (!q)
return -ENOMEM;
+ if (devm_add_action_or_reset(dev, pmem_release_queue, q))
+ return -ENOMEM;
+
pmem->pfn_flags = PFN_DEV;
if (is_nd_pfn(dev)) {
addr = devm_memremap_pages(dev, &pfn_res, &q->q_usage_counter,
@@ -303,10 +312,10 @@ static int pmem_attach_disk(struct device *dev,
pmem->size, ARCH_MEMREMAP_PMEM);
/*
- * At release time the queue must be dead before
+ * At release time the queue must be frozen before
* devm_memremap_pages is unwound
*/
- if (devm_add_action_or_reset(dev, pmem_release_queue, q))
+ if (devm_add_action_or_reset(dev, pmem_freeze_queue, q))
return -ENOMEM;
if (IS_ERR(addr))
diff --git a/drivers/pnp/pnpbios/bioscalls.c b/drivers/pnp/pnpbios/bioscalls.c
index 438d4c72c7b3..ff563db025b3 100644
--- a/drivers/pnp/pnpbios/bioscalls.c
+++ b/drivers/pnp/pnpbios/bioscalls.c
@@ -54,7 +54,7 @@ __asm__(".text \n"
#define Q2_SET_SEL(cpu, selname, address, size) \
do { \
- struct desc_struct *gdt = get_cpu_gdt_table((cpu)); \
+ struct desc_struct *gdt = get_cpu_gdt_rw((cpu)); \
set_desc_base(&gdt[(selname) >> 3], (u32)(address)); \
set_desc_limit(&gdt[(selname) >> 3], (size) - 1); \
} while(0)
@@ -95,8 +95,8 @@ static inline u16 call_pnp_bios(u16 func, u16 arg1, u16 arg2, u16 arg3,
return PNP_FUNCTION_NOT_SUPPORTED;
cpu = get_cpu();
- save_desc_40 = get_cpu_gdt_table(cpu)[0x40 / 8];
- get_cpu_gdt_table(cpu)[0x40 / 8] = bad_bios_desc;
+ save_desc_40 = get_cpu_gdt_rw(cpu)[0x40 / 8];
+ get_cpu_gdt_rw(cpu)[0x40 / 8] = bad_bios_desc;
/* On some boxes IRQ's during PnP BIOS calls are deadly. */
spin_lock_irqsave(&pnp_bios_lock, flags);
@@ -134,7 +134,7 @@ static inline u16 call_pnp_bios(u16 func, u16 arg1, u16 arg2, u16 arg3,
:"memory");
spin_unlock_irqrestore(&pnp_bios_lock, flags);
- get_cpu_gdt_table(cpu)[0x40 / 8] = save_desc_40;
+ get_cpu_gdt_rw(cpu)[0x40 / 8] = save_desc_40;
put_cpu();
/* If we get here and this is set then the PnP BIOS faulted on us. */
@@ -477,7 +477,7 @@ void pnpbios_calls_init(union pnp_bios_install_struct *header)
pnp_bios_callpoint.segment = PNP_CS16;
for_each_possible_cpu(i) {
- struct desc_struct *gdt = get_cpu_gdt_table(i);
+ struct desc_struct *gdt = get_cpu_gdt_rw(i);
if (!gdt)
continue;
set_desc_base(&gdt[GDT_ENTRY_PNPBIOS_CS32],