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| author | Arnd Bergmann <arnd@arndb.de> | 2013-06-20 02:14:59 +0200 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2013-06-20 02:15:45 +0200 |
| commit | e5051b8472c2fde91e44d906c9a2e516a10b60b2 (patch) | |
| tree | b7c27378ca981a7bcf86639db7b0cde834feb0b6 /mm/migrate.c | |
| parent | c3b693d1d63444afe4fbf809d8a311b63741e503 (diff) | |
| parent | 3bfbc6cd9b41f937a134ba65a4a1eefba062b9a8 (diff) | |
Merge tag 'imx-soc-3.11' of git://git.linaro.org/people/shawnguo/linux-2.6 into next/soc
From Shawn Guo:
imx soc changes for 3.11:
* New SoCs i.MX6 Sololite and Vybrid VF610 support
* imx5 and imx6 clock fixes and additions
* Update clock driver to use of_clk_init() function
* Refactor restart routine mxc_restart() to get it work for DT boot
as well
* Clean up mxc specific ulpi access ops
* imx defconfig updates
* tag 'imx-soc-3.11' of git://git.linaro.org/people/shawnguo/linux-2.6: (29 commits)
ARM: imx_v6_v7_defconfig: Enable Vybrid VF610
ARM: imx_v6_v7_defconfig: Enable imx-wm8962 by default
ARM: clk-imx6qdl: Add clko1 configuration for imx6qdl-sabresd
ARM: imx_v6_v7_defconfig: Enable PWM and backlight options
ARM: imx: Remove mxc specific ulpi access ops
ARM: imx: add initial support for VF610
ARM: imx: add VF610 clock support
ARM: imx_v6_v7_defconfig: enable parallel display
ARM: imx: clk: No need to initialize phandle struct
ARM: imx: irq-common: Include header to avoid sparse warning
ARM: imx: Enable mx6 solo-lite support
ARM: imx6: use common of_clk_init() call to initialize clocks
ARM: imx6q: call of_clk_init() to register fixed rate clocks
ARM: imx: imx_v6_v7_defconfig: Select CONFIG_DRM_IMX_TVE
ARM: i.MX6: clk: add different DualLite MLB clock config
ARM i.MX5: Add S/PDIF clocks
ARM i.MX53: Add SATA clock
ARM: imx6q: clk: add the eim_slow clock
ARM: imx: remove MLB PLL from pllv3
ARM: imx: disable pll8_mlb in mx6q_clks
...
Conflicts:
arch/arm/Kconfig.debug (simple add/add conflict)
Includes an update to 3.10-rc6
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'mm/migrate.c')
| -rw-r--r-- | mm/migrate.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/mm/migrate.c b/mm/migrate.c index b1f57501de9c..6f0c24438bba 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -200,15 +200,14 @@ static void remove_migration_ptes(struct page *old, struct page *new) * get to the page and wait until migration is finished. * When we return from this function the fault will be retried. */ -void migration_entry_wait(struct mm_struct *mm, pmd_t *pmd, - unsigned long address) +static void __migration_entry_wait(struct mm_struct *mm, pte_t *ptep, + spinlock_t *ptl) { - pte_t *ptep, pte; - spinlock_t *ptl; + pte_t pte; swp_entry_t entry; struct page *page; - ptep = pte_offset_map_lock(mm, pmd, address, &ptl); + spin_lock(ptl); pte = *ptep; if (!is_swap_pte(pte)) goto out; @@ -236,6 +235,20 @@ out: pte_unmap_unlock(ptep, ptl); } +void migration_entry_wait(struct mm_struct *mm, pmd_t *pmd, + unsigned long address) +{ + spinlock_t *ptl = pte_lockptr(mm, pmd); + pte_t *ptep = pte_offset_map(pmd, address); + __migration_entry_wait(mm, ptep, ptl); +} + +void migration_entry_wait_huge(struct mm_struct *mm, pte_t *pte) +{ + spinlock_t *ptl = &(mm)->page_table_lock; + __migration_entry_wait(mm, pte, ptl); +} + #ifdef CONFIG_BLOCK /* Returns true if all buffers are successfully locked */ static bool buffer_migrate_lock_buffers(struct buffer_head *head, |