tree 813deb5ebb82b03ed10774f957e7a3b459de1a43
parent 61c43d1863a333131c17b6d6d6c05d472d4993e7
author Darrick J. Wong <djwong@kernel.org> 1611362919 -0800
committer Darrick J. Wong <djwong@kernel.org> 1612230524 -0800

xfs: flush speculative space allocations when we run out of space

If a fs modification (creation, file write, reflink, etc.) is unable to
reserve enough space to handle the modification, try clearing whatever
space the filesystem might have been hanging onto in the hopes of
speeding up the filesystem.  The flushing behavior will become
particularly important when we add deferred inode inactivation because
that will increase the amount of space that isn't actively tied to user
data.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>