diff options
| author | Christoph Hellwig | 2018-07-12 07:25:59 +0200 |
|---|---|---|
| committer | Darrick J. Wong | 2018-07-12 07:25:59 +0200 |
| commit | fca8c805425c0d9435097a6c780e95332e54613a (patch) | |
| tree | 7f2fa7bf4e3dc5386e5f6a3a2df28af7537de20a /fs/xfs/xfs_reflink.c | |
| parent | xfs: don't use XFS_BMAPI_IGSTATE in xfs_map_blocks (diff) | |
| download | kernel-qcow2-linux-fca8c805425c0d9435097a6c780e95332e54613a.tar.gz kernel-qcow2-linux-fca8c805425c0d9435097a6c780e95332e54613a.tar.xz kernel-qcow2-linux-fca8c805425c0d9435097a6c780e95332e54613a.zip | |
xfs: remove xfs_reflink_trim_irec_to_next_cow
We already have to check for overlapping COW extents everytime we
come back to a page in xfs_writepage_map / xfs_map_cow, so this
additional trim is not required.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs/xfs/xfs_reflink.c')
| -rw-r--r-- | fs/xfs/xfs_reflink.c | 33 |
1 files changed, 0 insertions, 33 deletions
diff --git a/fs/xfs/xfs_reflink.c b/fs/xfs/xfs_reflink.c index 592fb2071a03..22c11b98ab26 100644 --- a/fs/xfs/xfs_reflink.c +++ b/fs/xfs/xfs_reflink.c @@ -501,39 +501,6 @@ xfs_reflink_find_cow_mapping( } /* - * Trim an extent to end at the next CoW reservation past offset_fsb. - */ -void -xfs_reflink_trim_irec_to_next_cow( - struct xfs_inode *ip, - xfs_fileoff_t offset_fsb, - struct xfs_bmbt_irec *imap) -{ - struct xfs_ifork *ifp = XFS_IFORK_PTR(ip, XFS_COW_FORK); - struct xfs_bmbt_irec got; - struct xfs_iext_cursor icur; - - if (!xfs_is_reflink_inode(ip)) - return; - - /* Find the extent in the CoW fork. */ - if (!xfs_iext_lookup_extent(ip, ifp, offset_fsb, &icur, &got)) - return; - - /* This is the extent before; try sliding up one. */ - if (got.br_startoff < offset_fsb) { - if (!xfs_iext_next_extent(ifp, &icur, &got)) - return; - } - - if (got.br_startoff >= imap->br_startoff + imap->br_blockcount) - return; - - imap->br_blockcount = got.br_startoff - imap->br_startoff; - trace_xfs_reflink_trim_irec(ip, imap); -} - -/* * Cancel CoW reservations for some block range of an inode. * * If cancel_real is true this function cancels all COW fork extents for the |