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| author | Shiyang Ruan <ruansy.fnst@fujitsu.com> | 2022-06-03 08:37:28 +0300 |
|---|---|---|
| committer | akpm <akpm@linux-foundation.org> | 2022-07-18 03:14:30 +0300 |
| commit | 2f437effc689ef913fbe5e31110580b4e7cf04be (patch) | |
| tree | f27e3698252a5f32a512afd27bc6bee0c34e55fd /fs/xfs/xfs_mount.h | |
| parent | 33a8f7f2b3a3437d016d1b4047a4fd37eb6951b3 (diff) | |
| download | linux-2f437effc689ef913fbe5e31110580b4e7cf04be.tar.xz | |
fsdax: introduce dax_lock_mapping_entry()
The current dax_lock_page() locks dax entry by obtaining mapping and index
in page. To support 1-to-N RMAP in NVDIMM, we need a new function to lock
a specific dax entry corresponding to this file's mapping,index. And
output the page corresponding to the specific dax entry for caller use.
Link: https://lkml.kernel.org/r/20220603053738.1218681-5-ruansy.fnst@fujitsu.com
Signed-off-by: Shiyang Ruan <ruansy.fnst@fujitsu.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Dan Williams <dan.j.wiliams@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Goldwyn Rodrigues <rgoldwyn@suse.com>
Cc: Goldwyn Rodrigues <rgoldwyn@suse.de>
Cc: Jane Chu <jane.chu@oracle.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Miaohe Lin <linmiaohe@huawei.com>
Cc: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: Ritesh Harjani <riteshh@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'fs/xfs/xfs_mount.h')
0 files changed, 0 insertions, 0 deletions