linux-kernel - [PATCH 21/21] xfs: Support multi-page folios

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Date:   Mon,  1 Nov 2021 20:39:29 +0000
From:   "Matthew Wilcox (Oracle)" <willy@...radead.org>
To:     "Darrick J. Wong" <djwong@...nel.org>
Cc:     "Matthew Wilcox (Oracle)" <willy@...radead.org>,
        linux-xfs@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-block@...r.kernel.org,
        Jens Axboe <axboe@...nel.dk>,
        Christoph Hellwig <hch@...radead.org>
Subject: [PATCH 21/21] xfs: Support multi-page folios

Now that iomap has been converted, XFS is multi-page folio safe.
Indicate to the VFS that it can now create multi-page folios for XFS.

Signed-off-by: Matthew Wilcox (Oracle) <willy@...radead.org>
---
 fs/xfs/xfs_icache.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c
index f2210d927481..804507c82455 100644
--- a/fs/xfs/xfs_icache.c
+++ b/fs/xfs/xfs_icache.c
@@ -87,6 +87,7 @@ xfs_inode_alloc(
 	/* VFS doesn't initialise i_mode or i_state! */
 	VFS_I(ip)->i_mode = 0;
 	VFS_I(ip)->i_state = 0;
+	mapping_set_large_folios(VFS_I(ip)->i_mapping);
 
 	XFS_STATS_INC(mp, vn_active);
 	ASSERT(atomic_read(&ip->i_pincount) == 0);
@@ -336,6 +337,7 @@ xfs_reinit_inode(
 	inode->i_rdev = dev;
 	inode->i_uid = uid;
 	inode->i_gid = gid;
+	mapping_set_large_folios(inode->i_mapping);
 	return error;
 }
 
-- 
2.33.0