linux-kernel - [PATCH v2 8/8] xfs: remove restrictions for fsdax and reflink

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Message-ID: <1669908773-207-1-git-send-email-ruansy.fnst@fujitsu.com>
Date:   Thu, 1 Dec 2022 15:32:53 +0000
From:   Shiyang Ruan <ruansy.fnst@...itsu.com>
To:     <linux-kernel@...r.kernel.org>, <linux-xfs@...r.kernel.org>,
        <nvdimm@...ts.linux.dev>, <linux-fsdevel@...r.kernel.org>
CC:     <djwong@...nel.org>, <david@...morbit.com>,
        <dan.j.williams@...el.com>, <akpm@...ux-foundation.org>
Subject: [PATCH v2 8/8] xfs: remove restrictions for fsdax and reflink

Since the basic function for fsdax and reflink has been implemented,
remove the restrictions of them for widly test.

Signed-off-by: Shiyang Ruan <ruansy.fnst@...itsu.com>
---
 fs/xfs/xfs_ioctl.c | 4 ----
 fs/xfs/xfs_iops.c  | 4 ----
 2 files changed, 8 deletions(-)

diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index 1f783e979629..13f1b2add390 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -1138,10 +1138,6 @@ xfs_ioctl_setattr_xflags(
 	if ((fa->fsx_xflags & FS_XFLAG_REALTIME) && xfs_is_reflink_inode(ip))
 		ip->i_diflags2 &= ~XFS_DIFLAG2_REFLINK;
 
-	/* Don't allow us to set DAX mode for a reflinked file for now. */
-	if ((fa->fsx_xflags & FS_XFLAG_DAX) && xfs_is_reflink_inode(ip))
-		return -EINVAL;
-
 	/* diflags2 only valid for v3 inodes. */
 	i_flags2 = xfs_flags2diflags2(ip, fa->fsx_xflags);
 	if (i_flags2 && !xfs_has_v3inodes(mp))
diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index 2e10e1c66ad6..bf0495f7a5e1 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -1185,10 +1185,6 @@ xfs_inode_supports_dax(
 	if (!S_ISREG(VFS_I(ip)->i_mode))
 		return false;
 
-	/* Only supported on non-reflinked files. */
-	if (xfs_is_reflink_inode(ip))
-		return false;
-
 	/* Block size must match page size */
 	if (mp->m_sb.sb_blocksize != PAGE_SIZE)
 		return false;
-- 
2.38.1