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Message-ID: <YtrPRysafr5KK3NQ@magnolia> Date: Fri, 22 Jul 2022 09:24:39 -0700 From: "Darrick J. Wong" <djwong@...nel.org> To: Eric Biggers <ebiggers@...nel.org> Cc: linux-fsdevel@...r.kernel.org, linux-ext4@...r.kernel.org, linux-f2fs-devel@...ts.sourceforge.net, linux-xfs@...r.kernel.org, linux-api@...r.kernel.org, linux-fscrypt@...r.kernel.org, linux-block@...r.kernel.org, linux-kernel@...r.kernel.org, Keith Busch <kbusch@...nel.org> Subject: Re: [PATCH v4 9/9] xfs: support STATX_DIOALIGN On Fri, Jul 22, 2022 at 12:12:28AM -0700, Eric Biggers wrote: > From: Eric Biggers <ebiggers@...gle.com> > > Add support for STATX_DIOALIGN to xfs, so that direct I/O alignment > restrictions are exposed to userspace in a generic way. > > Signed-off-by: Eric Biggers <ebiggers@...gle.com> LGTM Reviewed-by: Darrick J. Wong <djwong@...nel.org> --D > --- > fs/xfs/xfs_iops.c | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c > index 29f5b8b8aca69a..bac3f56141801e 100644 > --- a/fs/xfs/xfs_iops.c > +++ b/fs/xfs/xfs_iops.c > @@ -605,6 +605,15 @@ xfs_vn_getattr( > stat->blksize = BLKDEV_IOSIZE; > stat->rdev = inode->i_rdev; > break; > + case S_IFREG: > + if (request_mask & STATX_DIOALIGN) { > + struct xfs_buftarg *target = xfs_inode_buftarg(ip); > + > + stat->result_mask |= STATX_DIOALIGN; > + stat->dio_mem_align = target->bt_logical_sectorsize; > + stat->dio_offset_align = target->bt_logical_sectorsize; > + } > + fallthrough; > default: > stat->blksize = xfs_stat_blksize(ip); > stat->rdev = 0; > -- > 2.37.0 >
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