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| author |   Shiyang Ruan <ruansy.fnst@fujitsu.com> | 2022-12-01 15:32:33 +0000 |
|---|---|---|
| committer |   Andrew Morton <akpm@linux-foundation.org> | 2022-12-11 18:12:17 -0800 |
| commit | d984648e428bf88cbd94ebe346c73632cb92fffb (patch) | |
| tree | ae98da0d9db614433a4137c7ee6cc1613cc12574 /include/linux/dax.h | |
| parent | xfs: use dax ops for zero and truncate in fsdax mode (diff) | |
| download | linux-rng-d984648e428bf88cbd94ebe346c73632cb92fffb.tar.xz linux-rng-d984648e428bf88cbd94ebe346c73632cb92fffb.zip | |
fsdax,xfs: port unshare to fsdax
Implement unshare in fsdax mode: copy data from srcmap to iomap.
Link: https://lkml.kernel.org/r/1669908753-169-1-git-send-email-ruansy.fnst@fujitsu.com
Signed-off-by: Shiyang Ruan <ruansy.fnst@fujitsu.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/linux/dax.h')
| -rw-r--r-- | include/linux/dax.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/dax.h b/include/linux/dax.h index ba985333e26b..2b5ecb591059 100644 --- a/include/linux/dax.h +++ b/include/linux/dax.h @@ -205,6 +205,8 @@ static inline void dax_unlock_mapping_entry(struct address_space *mapping, } #endif +int dax_file_unshare(struct inode *inode, loff_t pos, loff_t len, + const struct iomap_ops *ops); int dax_zero_range(struct inode *inode, loff_t pos, loff_t len, bool *did_zero, const struct iomap_ops *ops); int dax_truncate_page(struct inode *inode, loff_t pos, bool *did_zero, |