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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-11-26 07:50:56 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-11-26 07:50:56 +0100 |
| commit | 986fb2e0532b1b0fa1e8312fbc38b9e7ed826547 (patch) | |
| tree | e571ff6c8cd4bedfd49181125f0bd2993546ed24 /fs/xfs/xfs_reflink.c | |
| parent | 24438e46268c721e14c5c888386af85c9e1c5db1 (diff) | |
| parent | 2e6e902d185027f8e3cb8b7305238f7e35d6a436 (diff) | |
| download | talos-obmc-linux-986fb2e0532b1b0fa1e8312fbc38b9e7ed826547.tar.gz talos-obmc-linux-986fb2e0532b1b0fa1e8312fbc38b9e7ed826547.zip | |
Merge 4.20-rc4 into char-misc-next
We want the char/misc fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/xfs/xfs_reflink.c')
| -rw-r--r-- | fs/xfs/xfs_reflink.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/fs/xfs/xfs_reflink.c b/fs/xfs/xfs_reflink.c index ecdb086bc23e..322a852ce284 100644 --- a/fs/xfs/xfs_reflink.c +++ b/fs/xfs/xfs_reflink.c @@ -296,6 +296,7 @@ xfs_reflink_reserve_cow( if (error) return error; + xfs_trim_extent(imap, got.br_startoff, got.br_blockcount); trace_xfs_reflink_cow_alloc(ip, &got); return 0; } @@ -1351,10 +1352,19 @@ xfs_reflink_remap_prep( if (ret) goto out_unlock; - /* Zap any page cache for the destination file's range. */ - truncate_inode_pages_range(&inode_out->i_data, - round_down(pos_out, PAGE_SIZE), - round_up(pos_out + *len, PAGE_SIZE) - 1); + /* + * If pos_out > EOF, we may have dirtied blocks between EOF and + * pos_out. In that case, we need to extend the flush and unmap to cover + * from EOF to the end of the copy length. + */ + if (pos_out > XFS_ISIZE(dest)) { + loff_t flen = *len + (pos_out - XFS_ISIZE(dest)); + ret = xfs_flush_unmap_range(dest, XFS_ISIZE(dest), flen); + } else { + ret = xfs_flush_unmap_range(dest, pos_out, *len); + } + if (ret) + goto out_unlock; return 1; out_unlock: |
