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Message-Id: <20231127062252.2367645-6-yukuai1@huaweicloud.com>
Date: Mon, 27 Nov 2023 14:22:51 +0800
From: Yu Kuai <yukuai1@...weicloud.com>
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Subject: [PATCH block/for-next v2 15/16] buffer: use new helper to get inode from block_device
From: Yu Kuai <yukuai3@...wei.com>
Which is more efficiency, and also prepare to remove the field
'bd_inode' from block_device.
Signed-off-by: Yu Kuai <yukuai3@...wei.com>
---
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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