[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [PATCH block/for-next v2 15/16] buffer: use new helper to get inode from block_device
From: Yu Kuai <yukuai3@xxxxxxxxxx> Which is more efficiency, and also prepare to remove the field 'bd_inode' from block_device. Signed-off-by: Yu Kuai <yukuai3@xxxxxxxxxx> --- fs/buffer.c | 8 ++++---- include/linux/buffer_head.h | 4 ++-- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/fs/buffer.c b/fs/buffer.c index 967f34b70aa8..bf993198f881 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -189,7 +189,7 @@ EXPORT_SYMBOL(end_buffer_write_sync); static struct buffer_head * __find_get_block_slow(struct block_device *bdev, sector_t block) { - struct inode *bd_inode = bdev->bd_inode; + struct inode *bd_inode = bdev_inode(bdev); struct address_space *bd_mapping = bd_inode->i_mapping; struct buffer_head *ret = NULL; pgoff_t index; @@ -1032,7 +1032,7 @@ static int grow_dev_page(struct block_device *bdev, sector_t block, pgoff_t index, int size, int sizebits, gfp_t gfp) { - struct inode *inode = bdev->bd_inode; + struct inode *inode = bdev_inode(bdev); struct folio *folio; struct buffer_head *bh; sector_t end_block; @@ -1463,7 +1463,7 @@ __bread_gfp(struct block_device *bdev, sector_t block, { struct buffer_head *bh; - gfp |= mapping_gfp_constraint(bdev->bd_inode->i_mapping, ~__GFP_FS); + gfp |= mapping_gfp_constraint(bdev_inode(bdev)->i_mapping, ~__GFP_FS); /* * Prefer looping in the allocator rather than here, at least that @@ -1696,7 +1696,7 @@ EXPORT_SYMBOL(create_empty_buffers); */ void clean_bdev_aliases(struct block_device *bdev, sector_t block, sector_t len) { - struct inode *bd_inode = bdev->bd_inode; + struct inode *bd_inode = bdev_inode(bdev); struct address_space *bd_mapping = bd_inode->i_mapping; struct folio_batch fbatch; pgoff_t index = block >> (PAGE_SHIFT - bd_inode->i_blkbits); diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h index 5f23ee599889..da9ee62e3aa9 100644 --- a/include/linux/buffer_head.h +++ b/include/linux/buffer_head.h @@ -341,7 +341,7 @@ static inline struct buffer_head *getblk_unmovable(struct block_device *bdev, { gfp_t gfp; - gfp = mapping_gfp_constraint(bdev->bd_inode->i_mapping, ~__GFP_FS); + gfp = mapping_gfp_constraint(bdev_inode(bdev)->i_mapping, ~__GFP_FS); gfp |= __GFP_NOFAIL; return bdev_getblk(bdev, block, size, gfp); @@ -352,7 +352,7 @@ static inline struct buffer_head *__getblk(struct block_device *bdev, { gfp_t gfp; - gfp = mapping_gfp_constraint(bdev->bd_inode->i_mapping, ~__GFP_FS); + gfp = mapping_gfp_constraint(bdev_inode(bdev)->i_mapping, ~__GFP_FS); gfp |= __GFP_MOVABLE | __GFP_NOFAIL; return bdev_getblk(bdev, block, size, gfp); -- 2.39.2
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