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From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
To: Xiubo Li <xiubli@redhat.com>, Ilya Dryomov <idryomov@gmail.com>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>,
	Jeff Layton <jlayton@kernel.org>,
	ceph-devel@vger.kernel.org, David Howells <dhowells@redhat.com>,
	linux-fsdevel@vger.kernel.org
Subject: [PATCH 04/15] ceph: Add a migrate_folio method
Date: Fri, 25 Aug 2023 21:12:14 +0100	[thread overview]
Message-ID: <20230825201225.348148-5-willy@infradead.org> (raw)
In-Reply-To: <20230825201225.348148-1-willy@infradead.org>

The ceph_snap_context is independent of the address of the data, so we
can implement folio migration by just removing the ceph_snap_context
from the existing folio and attach it to the new one, which is exactly
what filemap_migrate_folio() does.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
---
 fs/ceph/addr.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 7c7dfcd63cd1..a0a1fac1a0db 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -1563,6 +1563,7 @@ const struct address_space_operations ceph_aops = {
 	.invalidate_folio = ceph_invalidate_folio,
 	.release_folio = ceph_release_folio,
 	.direct_IO = noop_direct_IO,
+	.migrate_folio = filemap_migrate_folio,
 };
 
 static void ceph_block_sigs(sigset_t *oldset)
-- 
2.40.1


  parent reply	other threads:[~2023-08-25 20:13 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-25 20:12 [PATCH 00/15] Many folio conversions for ceph Matthew Wilcox (Oracle)
2023-08-25 20:12 ` [PATCH 01/15] ceph: Convert ceph_writepages_start() to use folios a little more Matthew Wilcox (Oracle)
2023-08-28  1:18   ` Xiubo Li
2023-11-20  0:30     ` Xiubo Li
2023-08-25 20:12 ` [PATCH 02/15] ceph: Convert ceph_page_mkwrite() to use a folio Matthew Wilcox (Oracle)
2023-08-28  1:21   ` Xiubo Li
2023-08-25 20:12 ` [PATCH 03/15] mm: Delete page_mkwrite_check_truncate() Matthew Wilcox (Oracle)
2023-08-25 20:12 ` Matthew Wilcox (Oracle) [this message]
2023-08-25 20:12 ` [PATCH 05/15] ceph: Remove ceph_writepage() Matthew Wilcox (Oracle)
2023-08-25 20:12 ` [PATCH 06/15] ceph: Convert ceph_find_incompatible() to take a folio Matthew Wilcox (Oracle)
2023-08-25 20:12 ` [PATCH 07/15] ceph: Convert writepage_nounlock() " Matthew Wilcox (Oracle)
2023-08-25 20:12 ` [PATCH 08/15] ceph: Convert writepages_finish() to use " Matthew Wilcox (Oracle)
2023-08-25 20:12 ` [PATCH 09/15] ceph: Use a folio in ceph_filemap_fault() Matthew Wilcox (Oracle)
2023-08-26  3:00   ` Matthew Wilcox
2023-08-28  1:19     ` Xiubo Li
2023-08-29 11:55       ` Jeff Layton
2023-08-29 13:30         ` Matthew Wilcox
2023-08-30 10:44           ` Ilya Dryomov
2023-08-31  3:52             ` Xiubo Li
2023-08-25 20:12 ` [PATCH 10/15] ceph: Convert ceph_read_iter() to use a folio to read inline data Matthew Wilcox (Oracle)
2023-08-25 20:12 ` [PATCH 11/15] ceph: Convert __ceph_do_getattr() to take a folio Matthew Wilcox (Oracle)
2023-08-25 20:12 ` [PATCH 12/15] ceph: Convert ceph_fill_inode() " Matthew Wilcox (Oracle)
2023-08-25 20:12 ` [PATCH 13/15] ceph: Convert ceph_fill_inline_data() " Matthew Wilcox (Oracle)
2023-08-25 20:12 ` [PATCH 14/15] ceph: Convert ceph_set_page_fscache() to ceph_folio_start_fscache() Matthew Wilcox (Oracle)
2023-08-25 20:12 ` [PATCH 15/15] netfs: Remove unused functions Matthew Wilcox (Oracle)
2023-11-17 15:37 ` [PATCH 00/15] Many folio conversions for ceph Matthew Wilcox
2023-11-20  0:32   ` Xiubo Li

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