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| author | Dan Williams <dan.j.williams@intel.com> | 2017-05-05 09:38:43 +0300 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2017-05-05 09:38:43 +0300 |
| commit | 736163671bcb163fc82600b46c83dfa89d532d95 (patch) | |
| tree | 0639dc9d9fa180450b4e8fbda706eaae5f1876da /fs/xfs | |
| parent | d5483feda85a8f39ee2e940e279547c686aac30c (diff) | |
| parent | 1ef97fe4f8abd3317d5c3c860f990e02c2633959 (diff) | |
| download | linux-736163671bcb163fc82600b46c83dfa89d532d95.tar.xz | |
Merge branch 'for-4.12/dax' into libnvdimm-for-next
Diffstat (limited to 'fs/xfs')
| -rw-r--r-- | fs/xfs/xfs_iomap.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c index 288ee5b840d7..4b47403f8089 100644 --- a/fs/xfs/xfs_iomap.c +++ b/fs/xfs/xfs_iomap.c @@ -976,6 +976,7 @@ xfs_file_iomap_begin( int nimaps = 1, error = 0; bool shared = false, trimmed = false; unsigned lockmode; + struct block_device *bdev; if (XFS_FORCED_SHUTDOWN(mp)) return -EIO; @@ -1063,6 +1064,14 @@ xfs_file_iomap_begin( } xfs_bmbt_to_iomap(ip, iomap, &imap); + + /* optionally associate a dax device with the iomap bdev */ + bdev = iomap->bdev; + if (blk_queue_dax(bdev->bd_queue)) + iomap->dax_dev = dax_get_by_host(bdev->bd_disk->disk_name); + else + iomap->dax_dev = NULL; + if (shared) iomap->flags |= IOMAP_F_SHARED; return 0; @@ -1140,6 +1149,7 @@ xfs_file_iomap_end( unsigned flags, struct iomap *iomap) { + put_dax(iomap->dax_dev); if ((flags & IOMAP_WRITE) && iomap->type == IOMAP_DELALLOC) return xfs_file_iomap_end_delalloc(XFS_I(inode), offset, length, written, iomap); |