This data is going to be written immediately, so don't bother trying to do delayed allocation for it. Suggested-by: Dave Chinner <david@xxxxxxxxxxxxx> Signed-off-by: Jens Axboe <axboe@xxxxxxxxx> --- fs/xfs/xfs_iomap.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c index 28e2d1f37267..d0cd4a05d59f 100644 --- a/fs/xfs/xfs_iomap.c +++ b/fs/xfs/xfs_iomap.c @@ -847,8 +847,11 @@ xfs_buffered_write_iomap_begin( int allocfork = XFS_DATA_FORK; int error = 0; - /* we can't use delayed allocations when using extent size hints */ - if (xfs_get_extsz_hint(ip)) + /* + * Don't do delayed allocations when using extent size hints, or + * if we were asked to do uncached buffered writes. + */ + if (xfs_get_extsz_hint(ip) || (flags & IOMAP_UNCACHED)) return xfs_direct_write_iomap_begin(inode, offset, count, flags, iomap, srcmap); -- 2.24.1
