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From: Naohiro Aota <naohiro.aota@wdc.com>
To: linux-btrfs@vger.kernel.org, dsterba@suse.com
Cc: hare@suse.com, linux-fsdevel@vger.kernel.org,
	Jens Axboe <axboe@kernel.dk>,
	Christoph Hellwig <hch@infradead.org>,
	"Darrick J. Wong" <darrick.wong@oracle.com>,
	Naohiro Aota <naohiro.aota@wdc.com>,
	Josef Bacik <josef@toxicpanda.com>
Subject: [PATCH v14 16/42] btrfs: advance allocation pointer after tree log node
Date: Tue, 26 Jan 2021 11:24:54 +0900	[thread overview]
Message-ID: <69b443b9aa59b80de9442a0f5f81c685fd326b15.1611627788.git.naohiro.aota@wdc.com> (raw)
In-Reply-To: <cover.1611627788.git.naohiro.aota@wdc.com>

Since the allocation info of tree log node is not recorded to the extent
tree, calculate_alloc_pointer() cannot detect the node, so the pointer can
be over a tree node.

Replaying the log call btrfs_remove_free_space() for each node in the log
tree. So, advance the pointer after the node.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
---
 fs/btrfs/free-space-cache.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index 19c00118917a..c4ccfcb98aed 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -2619,8 +2619,22 @@ int btrfs_remove_free_space(struct btrfs_block_group *block_group,
 	int ret;
 	bool re_search = false;
 
-	if (btrfs_is_zoned(block_group->fs_info))
+	if (btrfs_is_zoned(block_group->fs_info)) {
+		/*
+		 * This can happen with conventional zones when replaying
+		 * log. Since the allocation info of tree-log nodes are
+		 * not recorded to the extent-tree, calculate_alloc_pointer()
+		 * failed to advance the allocation pointer after last
+		 * allocated tree log node blocks.
+		 *
+		 * This function is called from
+		 * btrfs_pin_extent_for_log_replay() when replaying the
+		 * log. Advance the pointer not to overwrite the tree-log nodes.
+		 */
+		if (block_group->alloc_offset < offset + bytes)
+			block_group->alloc_offset = offset + bytes;
 		return 0;
+	}
 
 	spin_lock(&ctl->tree_lock);
 
-- 
2.27.0


  parent reply	other threads:[~2021-01-26 19:59 UTC|newest]

Thread overview: 72+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-26  2:24 [PATCH v14 00/42] btrfs: zoned block device support Naohiro Aota
2021-01-26  2:24 ` [PATCH v14 01/42] block: add bio_add_zone_append_page Naohiro Aota
2021-01-26 16:08   ` Jens Axboe
2021-01-26  2:24 ` [PATCH v14 02/42] iomap: support REQ_OP_ZONE_APPEND Naohiro Aota
2021-01-26  2:24 ` [PATCH v14 03/42] btrfs: defer loading zone info after opening trees Naohiro Aota
2021-01-30 22:09   ` Anand Jain
2021-01-26  2:24 ` [PATCH v14 04/42] btrfs: use regular SB location on emulated zoned mode Naohiro Aota
2021-01-30 22:28   ` Anand Jain
2021-01-26  2:24 ` [PATCH v14 05/42] btrfs: release path before calling into btrfs_load_block_group_zone_info Naohiro Aota
2021-01-30 23:21   ` Anand Jain
2021-01-26  2:24 ` [PATCH v14 06/42] btrfs: do not load fs_info->zoned from incompat flag Naohiro Aota
2021-01-30 23:40   ` Anand Jain
2021-01-26  2:24 ` [PATCH v14 07/42] btrfs: disallow fitrim in ZONED mode Naohiro Aota
2021-01-30 23:44   ` Anand Jain
2021-01-26  2:24 ` [PATCH v14 08/42] btrfs: allow zoned mode on non-zoned block devices Naohiro Aota
2021-01-31  1:17   ` Anand Jain
2021-02-01 11:06     ` Johannes Thumshirn
2021-02-02  1:49   ` Anand Jain
2021-01-26  2:24 ` [PATCH v14 09/42] btrfs: implement zoned chunk allocator Naohiro Aota
2021-01-26  2:24 ` [PATCH v14 10/42] btrfs: verify device extent is aligned to zone Naohiro Aota
2021-01-26  2:24 ` [PATCH v14 11/42] btrfs: load zone's allocation offset Naohiro Aota
2021-01-26  2:24 ` [PATCH v14 12/42] btrfs: calculate allocation offset for conventional zones Naohiro Aota
2021-01-27 18:03   ` Josef Bacik
2021-02-03  5:19   ` Anand Jain
2021-02-03  6:10     ` Damien Le Moal
2021-02-03  6:56       ` Anand Jain
2021-02-03  7:10         ` Damien Le Moal
2021-01-26  2:24 ` [PATCH v14 13/42] btrfs: track unusable bytes for zones Naohiro Aota
2021-01-27 18:06   ` Josef Bacik
2021-01-26  2:24 ` [PATCH v14 14/42] btrfs: do sequential extent allocation in ZONED mode Naohiro Aota
2021-01-26  2:24 ` [PATCH v14 15/42] btrfs: redirty released extent buffers " Naohiro Aota
2021-01-26  2:24 ` Naohiro Aota [this message]
2021-01-26  2:24 ` [PATCH v14 17/42] btrfs: enable to mount ZONED incompat flag Naohiro Aota
2021-01-31 12:21   ` Anand Jain
2021-01-26  2:24 ` [PATCH v14 18/42] btrfs: reset zones of unused block groups Naohiro Aota
2021-01-26  2:24 ` [PATCH v14 19/42] btrfs: extract page adding function Naohiro Aota
2021-01-26  2:24 ` [PATCH v14 20/42] btrfs: use bio_add_zone_append_page for zoned btrfs Naohiro Aota
2021-01-26  2:24 ` [PATCH v14 21/42] btrfs: handle REQ_OP_ZONE_APPEND as writing Naohiro Aota
2021-01-26  2:25 ` [PATCH v14 22/42] btrfs: split ordered extent when bio is sent Naohiro Aota
2021-01-27 19:00   ` Josef Bacik
2021-01-26  2:25 ` [PATCH v14 23/42] btrfs: check if bio spans across an ordered extent Naohiro Aota
2021-01-26  2:25 ` [PATCH v14 24/42] btrfs: extend btrfs_rmap_block for specifying a device Naohiro Aota
2021-01-26  2:25 ` [PATCH v14 25/42] btrfs: cache if block-group is on a sequential zone Naohiro Aota
2021-01-26  2:25 ` [PATCH v14 26/42] btrfs: save irq flags when looking up an ordered extent Naohiro Aota
2021-01-26  2:25 ` [PATCH v14 27/42] btrfs: use ZONE_APPEND write for ZONED btrfs Naohiro Aota
2021-01-26  2:25 ` [PATCH v14 28/42] btrfs: enable zone append writing for direct IO Naohiro Aota
2021-01-26  2:25 ` [PATCH v14 29/42] btrfs: introduce dedicated data write path for ZONED mode Naohiro Aota
2021-02-02 15:00   ` David Sterba
2021-02-04  8:25     ` Naohiro Aota
2021-01-26  2:25 ` [PATCH v14 30/42] btrfs: serialize meta IOs on " Naohiro Aota
2021-01-26  2:25 ` [PATCH v14 31/42] btrfs: wait existing extents before truncating Naohiro Aota
2021-01-26  2:25 ` [PATCH v14 32/42] btrfs: avoid async metadata checksum on ZONED mode Naohiro Aota
2021-02-02 14:54   ` David Sterba
2021-02-02 16:50     ` Johannes Thumshirn
2021-02-02 19:28       ` David Sterba
2021-01-26  2:25 ` [PATCH v14 33/42] btrfs: mark block groups to copy for device-replace Naohiro Aota
2021-01-26  2:25 ` [PATCH v14 34/42] btrfs: implement cloning for ZONED device-replace Naohiro Aota
2021-01-26  2:25 ` [PATCH v14 35/42] btrfs: implement copying " Naohiro Aota
2021-01-26  2:25 ` [PATCH v14 36/42] btrfs: support dev-replace in ZONED mode Naohiro Aota
2021-01-26  2:25 ` [PATCH v14 37/42] btrfs: enable relocation " Naohiro Aota
2021-01-26  2:25 ` [PATCH v14 38/42] btrfs: relocate block group to repair IO failure in ZONED Naohiro Aota
2021-01-26  2:25 ` [PATCH v14 39/42] btrfs: split alloc_log_tree() Naohiro Aota
2021-01-26  2:25 ` [PATCH v14 40/42] btrfs: extend zoned allocator to use dedicated tree-log block group Naohiro Aota
2021-01-26  2:25 ` [PATCH v14 41/42] btrfs: serialize log transaction on ZONED mode Naohiro Aota
2021-01-27 19:01   ` Josef Bacik
2021-02-01 15:48   ` Filipe Manana
2021-01-26  2:25 ` [PATCH v14 42/42] btrfs: reorder log node allocation Naohiro Aota
2021-02-01 15:48   ` Filipe Manana
2021-02-01 15:54     ` Johannes Thumshirn
2021-01-29  7:56 ` [PATCH v14 00/42] btrfs: zoned block device support Johannes Thumshirn
2021-01-29 20:44   ` David Sterba
2021-01-30 11:30     ` Johannes Thumshirn

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