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From: Nikolay Borisov <nborisov@suse.com>
To: linux-btrfs@vger.kernel.org
Cc: Nikolay Borisov <nborisov@suse.com>
Subject: [PATCH 03/11] btrfs: Introduce unaccount_log_buffer
Date: Mon, 20 Jan 2020 16:09:10 +0200	[thread overview]
Message-ID: <20200120140918.15647-4-nborisov@suse.com> (raw)
In-Reply-To: <20200120140918.15647-1-nborisov@suse.com>

This function correctly adjusts the reserved bytes occupied by a
log tree extent buffer. It will be used instead of calling
btrfs_pin_reserved_extent.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
---
 fs/btrfs/tree-log.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index a2bae5c230e1..30e7d96a69fe 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -18,6 +18,8 @@
 #include "compression.h"
 #include "qgroup.h"
 #include "inode-map.h"
+#include "block-group.h"
+#include "space-info.h"
 
 /* magic values for the inode_only field in btrfs_log_inode:
  *
@@ -2659,6 +2661,27 @@ static int replay_one_buffer(struct btrfs_root *log, struct extent_buffer *eb,
 	return ret;
 }
 
+static void unaccount_log_buffer(struct btrfs_fs_info *fs_info, u64 start)
+{
+	struct btrfs_block_group *cache;
+
+	cache = btrfs_lookup_block_group(fs_info, start);
+	if (!cache) {
+		btrfs_err(fs_info, "unable to find block group for %llu", start);
+		return;
+	}
+
+	spin_lock(&cache->space_info->lock);
+	spin_lock(&cache->lock);
+	cache->reserved -= fs_info->nodesize;
+	cache->space_info->bytes_reserved -= fs_info->nodesize;
+	spin_unlock(&cache->lock);
+	spin_unlock(&cache->space_info->lock);
+
+	btrfs_put_block_group(cache);
+	return;
+}
+
 static noinline int walk_down_log_tree(struct btrfs_trans_handle *trans,
 				   struct btrfs_root *root,
 				   struct btrfs_path *path, int *level,
-- 
2.17.1


  parent reply	other threads:[~2020-01-20 14:09 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-20 14:09 [PATCH 00/11] Make pinned extents tracking per-transaction Nikolay Borisov
2020-01-20 14:09 ` [PATCH 01/11] btrfs: Perform pinned cleanup directly in btrfs_destroy_delayed_refs Nikolay Borisov
2020-01-21 14:22   ` Josef Bacik
2020-01-30 13:51   ` David Sterba
2020-02-05  8:32     ` Nikolay Borisov
2020-01-20 14:09 ` [PATCH 02/11] btrfs: Make btrfs_pin_extent take trans handle Nikolay Borisov
2020-01-21 14:23   ` Josef Bacik
2020-01-20 14:09 ` Nikolay Borisov [this message]
2020-01-22 20:04   ` [PATCH 03/11] btrfs: Introduce unaccount_log_buffer Josef Bacik
2020-01-20 14:09 ` [PATCH 04/11] btrfs: Call btrfs_pin_reserved_extent only during active transaction Nikolay Borisov
2020-01-22 20:05   ` Josef Bacik
2020-01-20 14:09 ` [PATCH 05/11] btrfs: Make btrfs_pin_reserved_extent take transaction Nikolay Borisov
2020-01-22 20:06   ` Josef Bacik
2020-01-20 14:09 ` [PATCH 06/11] btrfs: Make btrfs_pin_extent_for_log_replay take transaction handle Nikolay Borisov
2020-01-22 20:06   ` Josef Bacik
2020-01-20 14:09 ` [PATCH 07/11] btrfs: Make pin_down_extent take btrfs_trans_handle Nikolay Borisov
2020-01-22 20:07   ` Josef Bacik
2020-01-20 14:09 ` [PATCH 08/11] btrfs: Pass trans handle to write_pinned_extent_entries Nikolay Borisov
2020-01-22 20:07   ` Josef Bacik
2020-01-20 14:09 ` [PATCH 09/11] btrfs: Mark pinned log extents as excluded Nikolay Borisov
2020-01-22 20:12   ` Josef Bacik
2020-01-30 13:53   ` David Sterba
2020-01-30 14:03     ` Nikolay Borisov
2020-02-05  8:51     ` Nikolay Borisov
2020-01-20 14:09 ` [PATCH 10/11] btrfs: Factor out pinned extent clean up in btrfs_delete_unused_bgs Nikolay Borisov
2020-01-22 20:14   ` Josef Bacik
2020-01-20 14:09 ` [PATCH 11/11] btrfs: Use btrfs_transaction::pinned_extents Nikolay Borisov
2020-01-22 20:21   ` Josef Bacik
2020-01-23  8:54     ` Nikolay Borisov
2020-01-23 13:40       ` Josef Bacik
2020-01-24 10:35   ` [PATCH v2] " Nikolay Borisov
2020-01-24 13:51     ` Josef Bacik
2020-01-24 15:18     ` [PATCH v3] " Nikolay Borisov
2020-01-24 15:27       ` Josef Bacik
2020-01-30 14:02       ` David Sterba
2020-02-06 18:10       ` [PATCH 11/11 " David Sterba
2020-02-06 19:40         ` Nikolay Borisov
2020-02-14 15:33           ` David Sterba
2020-02-06 19:59 ` [PATCH 00/11] Make pinned extents tracking per-transaction David Sterba

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