[PATCH v4 9/9] xfs: support STATX_DIOALIGN
From: Eric Biggers <ebiggers@kernel.org>
Date: 2022-07-22 07:14:23
Also in:
linux-block, linux-ext4, linux-f2fs-devel, linux-fscrypt, linux-fsdevel, linux-xfs, lkml
Subsystem:
filesystems (vfs and infrastructure), the rest, xfs filesystem · Maintainers:
Alexander Viro, Christian Brauner, Linus Torvalds, Carlos Maiolino
From: Eric Biggers <redacted> 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 <redacted> --- 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