From b1aa812b21084285e9f6098639be9cd5bf9e05d7 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Wed, 14 Dec 2016 15:07:24 -0800 Subject: mm: move handling of COW faults into DAX code Move final handling of COW faults from generic code into DAX fault handler. That way generic code doesn't have to be aware of peculiarities of DAX locking so remove that knowledge and make locking functions private to fs/dax.c. Link: http://lkml.kernel.org/r/1479460644-25076-11-git-send-email-jack@suse.cz Signed-off-by: Jan Kara Acked-by: Kirill A. Shutemov Reviewed-by: Ross Zwisler Cc: Dan Williams Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/dax.h | 7 ------- 1 file changed, 7 deletions(-) (limited to 'include/linux/dax.h') diff --git a/include/linux/dax.h b/include/linux/dax.h index 0afade8bd3d7..f97bcfe79472 100644 --- a/include/linux/dax.h +++ b/include/linux/dax.h @@ -46,7 +46,6 @@ void dax_wake_mapping_entry_waiter(struct address_space *mapping, #ifdef CONFIG_FS_DAX struct page *read_dax_sector(struct block_device *bdev, sector_t n); -void dax_unlock_mapping_entry(struct address_space *mapping, pgoff_t index); int __dax_zero_page_range(struct block_device *bdev, sector_t sector, unsigned int offset, unsigned int length); #else @@ -55,12 +54,6 @@ static inline struct page *read_dax_sector(struct block_device *bdev, { return ERR_PTR(-ENXIO); } -/* Shouldn't ever be called when dax is disabled. */ -static inline void dax_unlock_mapping_entry(struct address_space *mapping, - pgoff_t index) -{ - BUG(); -} static inline int __dax_zero_page_range(struct block_device *bdev, sector_t sector, unsigned int offset, unsigned int length) { -- cgit v1.2.3