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author | Brian Foster <bfoster@redhat.com> | 2018-08-01 17:20:31 +0300 |
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committer | Darrick J. Wong <darrick.wong@oracle.com> | 2018-08-03 09:05:13 +0300 |
commit | 1214f1cf663b0939fbb8f1bccdc74c1d1e452d53 (patch) | |
tree | 24a8b208cbfff610e5099eab6cdae0f474aad9df /fs/xfs/xfs_reflink.c | |
parent | ce356d64772f920f26cd6c1b02878a737a275638 (diff) | |
download | linux-1214f1cf663b0939fbb8f1bccdc74c1d1e452d53.tar.xz |
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_reflink.c')
0 files changed, 0 insertions, 0 deletions