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| author | Arnd Bergmann <arnd@arndb.de> | 2012-11-12 22:54:08 +0100 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2012-11-12 22:54:08 +0100 |
| commit | 8a6ff8a0a2bc51b29681aab093b349c9eb32acf5 (patch) | |
| tree | 7ee7315a4aa9b33cba73cf46e59187157a00866a /mm/mmu_notifier.c | |
| parent | 65829ef5a0b9bdffa34b35479853d24e547cfde8 (diff) | |
| parent | 75984df05d86956541795f01e62d7dc67bc522fd (diff) | |
Merge tag 'for-3.8-at91_header_clean' of git://github.com/at91linux/linux-at91 into next/headers
From Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>:
arm: at91: mach header cleanup
This first patch serie start the cleanup of the header in mach
by moving all the platform data to include/linux/platform_data
and move the board header and drivers header next to them
* tag 'for-3.8-at91_header_clean' of git://github.com/at91linux/linux-at91:
arm: at91: move at91rm9200 rtc header in drivers/rtc
arm: at91: move reset controller header to arm/arm/mach-at91
arm: at91: move pit define to the driver
arm: at91: move at91_shdwc.h to arch/arm/mach-at91
arm: at91: move board header to arch/arm/mach-at91
arn: at91: move at91_tc.h to arch/arm/mach-at91
arm: at91 move at91_aic.h to arch/arm/mach-at91
arm: at91 move board.h to arch/arm/mach-at91
arm: at91: move platfarm_data to include/linux/platform_data/atmel.h
arm: at91: drop machine defconfig
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'mm/mmu_notifier.c')
| -rw-r--r-- | mm/mmu_notifier.c | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/mm/mmu_notifier.c b/mm/mmu_notifier.c index 479a1e751a7..8a5ac8c686b 100644 --- a/mm/mmu_notifier.c +++ b/mm/mmu_notifier.c @@ -196,28 +196,28 @@ static int do_mmu_notifier_register(struct mmu_notifier *mn, BUG_ON(atomic_read(&mm->mm_users) <= 0); /* - * Verify that mmu_notifier_init() already run and the global srcu is - * initialized. - */ + * Verify that mmu_notifier_init() already run and the global srcu is + * initialized. + */ BUG_ON(!srcu.per_cpu_ref); + ret = -ENOMEM; + mmu_notifier_mm = kmalloc(sizeof(struct mmu_notifier_mm), GFP_KERNEL); + if (unlikely(!mmu_notifier_mm)) + goto out; + if (take_mmap_sem) down_write(&mm->mmap_sem); ret = mm_take_all_locks(mm); if (unlikely(ret)) - goto out; + goto out_clean; if (!mm_has_notifiers(mm)) { - mmu_notifier_mm = kmalloc(sizeof(struct mmu_notifier_mm), - GFP_KERNEL); - if (unlikely(!mmu_notifier_mm)) { - ret = -ENOMEM; - goto out_of_mem; - } INIT_HLIST_HEAD(&mmu_notifier_mm->list); spin_lock_init(&mmu_notifier_mm->lock); mm->mmu_notifier_mm = mmu_notifier_mm; + mmu_notifier_mm = NULL; } atomic_inc(&mm->mm_count); @@ -233,12 +233,12 @@ static int do_mmu_notifier_register(struct mmu_notifier *mn, hlist_add_head(&mn->hlist, &mm->mmu_notifier_mm->list); spin_unlock(&mm->mmu_notifier_mm->lock); -out_of_mem: mm_drop_all_locks(mm); -out: +out_clean: if (take_mmap_sem) up_write(&mm->mmap_sem); - + kfree(mmu_notifier_mm); +out: BUG_ON(atomic_read(&mm->mm_users) <= 0); return ret; } |