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fs: mark the iomap argument to __block_write_begin_int const

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__block_write_begin_int never modifies the passed in iomap, so mark it
const.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
This commit is contained in:
Christoph Hellwig 2021-08-10 18:33:05 -07:00 committed by Darrick J. Wong
parent e3c4ffb0c2
commit 6d49cc8545
2 changed files with 4 additions and 4 deletions
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4
fs/buffer.c
View File

@ -1912,7 +1912,7 @@ EXPORT_SYMBOL(page_zero_new_buffers);
static void
iomap_to_bh(struct inode *inode, sector_t block, struct buffer_head *bh,
struct iomap *iomap)
const struct iomap *iomap)
{
loff_t offset = block << inode->i_blkbits;
@ -1966,7 +1966,7 @@ iomap_to_bh(struct inode *inode, sector_t block, struct buffer_head *bh,
}
int __block_write_begin_int(struct page *page, loff_t pos, unsigned len,
get_block_t *get_block, struct iomap *iomap)
get_block_t *get_block, const struct iomap *iomap)
{
unsigned from = pos & (PAGE_SIZE - 1);
unsigned to = from + len;

4
fs/internal.h
View File

@ -48,8 +48,8 @@ static inline int emergency_thaw_bdev(struct super_block *sb)
/*
* buffer.c
*/
extern int __block_write_begin_int(struct page *page, loff_t pos, unsigned len,
get_block_t *get_block, struct iomap *iomap);
int __block_write_begin_int(struct page *page, loff_t pos, unsigned len,
get_block_t *get_block, const struct iomap *iomap);
/*
* char_dev.c