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dax: rip out get_block based IO support

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No one uses functions using the get_block callback anymore. Rip them
out and update documentation.

Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Jan Kara
2016-11-20 20:48:36 -05:00
committed by Theodore Ts'o
parent 00697eed38
commit dd936e4313
3 changed files with 11 additions and 338 deletions
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12
include/linux/dax.h
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@@ -38,13 +38,8 @@ static inline void *dax_radix_locked_entry(sector_t sector, unsigned long flags)
ssize_t dax_iomap_rw(struct kiocb *iocb, struct iov_iter *iter,
struct iomap_ops *ops);
ssize_t dax_do_io(struct kiocb *, struct inode *, struct iov_iter *,
get_block_t, dio_iodone_t, int flags);
int dax_zero_page_range(struct inode *, loff_t from, unsigned len, get_block_t);
int dax_truncate_page(struct inode *, loff_t from, get_block_t);
int dax_iomap_fault(struct vm_area_struct *vma, struct vm_fault *vmf,
struct iomap_ops *ops);
int dax_fault(struct vm_area_struct *, struct vm_fault *, get_block_t);
int dax_delete_mapping_entry(struct address_space *mapping, pgoff_t index);
void dax_wake_mapping_entry_waiter(struct address_space *mapping,
pgoff_t index, void *entry, bool wake_all);
@@ -73,12 +68,6 @@ static inline int __dax_zero_page_range(struct block_device *bdev,
}
#endif
static inline int dax_pmd_fault(struct vm_area_struct *vma, unsigned long addr,
pmd_t *pmd, unsigned int flags, get_block_t gb)
{
return VM_FAULT_FALLBACK;
}
#ifdef CONFIG_FS_DAX_PMD
static inline unsigned int dax_radix_order(void *entry)
{
@@ -101,7 +90,6 @@ static inline int dax_iomap_pmd_fault(struct vm_area_struct *vma,
}
#endif
int dax_pfn_mkwrite(struct vm_area_struct *, struct vm_fault *);
#define dax_mkwrite(vma, vmf, gb) dax_fault(vma, vmf, gb)
static inline bool vma_is_dax(struct vm_area_struct *vma)
{