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| author | Brian Foster | 2018-08-01 16:20:31 +0200 |
|---|---|---|
| committer | Darrick J. Wong | 2018-08-03 08:05:13 +0200 |
| commit | 1214f1cf663b0939fbb8f1bccdc74c1d1e452d53 (patch) | |
| tree | 24a8b208cbfff610e5099eab6cdae0f474aad9df /fs/xfs/xfs_trans.h | |
| parent | xfs: pass transaction to dfops reset/move helpers (diff) | |
| download | kernel-qcow2-linux-1214f1cf663b0939fbb8f1bccdc74c1d1e452d53.tar.gz kernel-qcow2-linux-1214f1cf663b0939fbb8f1bccdc74c1d1e452d53.tar.xz kernel-qcow2-linux-1214f1cf663b0939fbb8f1bccdc74c1d1e452d53.zip | |
xfs: replace dop_low with transaction flag
The dop_low field enables the low free space allocation mode when a
previous allocation has detected difficulty allocating blocks. It
has historically been part of the xfs_defer_ops structure, which
means if enabled, it remains enabled across a set of transactions
until the deferred operations have completed and the dfops is reset.
Now that the dfops is embedded in the transaction, we can save a bit
more space by using a transaction flag rather than a standalone
boolean. Drop the ->dop_low field and replace it with a transaction
flag that is set at the same points, carried across rolling
transactions and cleared on completion of deferred operations. This
essentially emulates the behavior of ->dop_low and so should not
change behavior.
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs/xfs/xfs_trans.h')
| -rw-r--r-- | fs/xfs/xfs_trans.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h index dc79e3c1d3e8..7e493221160e 100644 --- a/fs/xfs/xfs_trans.h +++ b/fs/xfs/xfs_trans.h @@ -101,8 +101,6 @@ struct xfs_defer_ops { /* relog these with each roll */ struct xfs_inode *dop_inodes[XFS_DEFER_OPS_NR_INODES]; struct xfs_buf *dop_bufs[XFS_DEFER_OPS_NR_BUFS]; - - bool dop_low; /* alloc in low mode */ }; /* |