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xfs: ioends require logically contiguous file offsets

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We need to create a new ioend if the current writepage call isn't
logically contiguous with the range contained in the previous ioend.
Hopefully writepage gets called in order of increasing file offset.

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 2016-03-07 09:32:14 +11:00 committed by Dave Chinner
parent e10de3723c
commit 0df61da8ac
1 changed files with 2 additions and 1 deletions
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3
fs/xfs/xfs_aops.c
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@ -520,7 +520,8 @@ xfs_add_to_ioend(
struct list_head *iolist)
{
if (!wpc->ioend || wpc->io_type != wpc->ioend->io_type ||
bh->b_blocknr != wpc->last_block + 1) {
bh->b_blocknr != wpc->last_block + 1 ||
offset != wpc->ioend->io_offset + wpc->ioend->io_size) {
struct xfs_ioend *new;
if (wpc->ioend)