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xfs: remove redundant remap partial EOF block checks 

Now that we've moved the partial EOF block checks to the VFS helpers, we
can remove the redundant functionality from XFS.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Darrick J. Wong 2018-10-30 10:47:16 +11:00 committed by Dave Chinner
parent 3f68c1f562
commit 7a6ccf004e
1 changed files with 0 additions and 19 deletions
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19
fs/xfs/xfs_reflink.c
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@ -1314,7 +1314,6 @@ xfs_reflink_remap_prep(
struct inode *inode_out = file_inode(file_out);
struct xfs_inode *dest = XFS_I(inode_out);
bool same_inode = (inode_in == inode_out);
u64 blkmask = i_blocksize(inode_in) - 1;
ssize_t ret;
/* Lock both files against IO */
@ -1342,24 +1341,6 @@ xfs_reflink_remap_prep(
if (ret < 0 || *len == 0)
goto out_unlock;
/*
* If the dedupe data matches, chop off the partial EOF block
* from the source file so we don't try to dedupe the partial
* EOF block.
*/
if (remap_flags & REMAP_FILE_DEDUP) {
*len &= ~blkmask;
} else if (*len & blkmask) {
/*
* The user is attempting to share a partial EOF block,
* if it's inside the destination EOF then reject it.
*/
if (pos_out + *len < i_size_read(inode_out)) {
ret = -EINVAL;
goto out_unlock;
}
}
/* Attach dquots to dest inode before changing block map */
ret = xfs_qm_dqattach(dest);
if (ret)