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authorFilipe Manana <fdmanana@suse.com>2023-03-21 11:13:57 +0000
committerDavid Sterba <dsterba@suse.com>2023-04-17 18:01:20 +0200
commitba4ec8fbce6c8b629a26d78cdd4a308cd0a503ca (patch)
treeee975e9e785c5da5af9ec8b24c95d5c6afec12f8 /fs/btrfs/block-rsv.c
parentb13d57db90b859dadb33ccdb3716c9c3ed0a825d (diff)
btrfs: fix calculation of the global block reserve's size
At btrfs_update_global_block_rsv(), we are assuming an unlink operation uses 5 metadata units, but that's not true anymore, it uses 6 since the commit bca4ad7c0b54 ("btrfs: reserve correct number of items for unlink and rmdir"). So update the code and comments to consider 6 units. Reviewed-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: Filipe Manana <fdmanana@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/block-rsv.c')
-rw-r--r--fs/btrfs/block-rsv.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/btrfs/block-rsv.c b/fs/btrfs/block-rsv.c
index 90b8088e8fac..6edcb32ed4c9 100644
--- a/fs/btrfs/block-rsv.c
+++ b/fs/btrfs/block-rsv.c
@@ -350,14 +350,14 @@ void btrfs_update_global_block_rsv(struct btrfs_fs_info *fs_info)
/*
* But we also want to reserve enough space so we can do the fallback
- * global reserve for an unlink, which is an additional 5 items (see the
+ * global reserve for an unlink, which is an additional 6 items (see the
* comment in __unlink_start_trans for what we're modifying.)
*
* But we also need space for the delayed ref updates from the unlink,
- * so its 10, 5 for the actual operation, and 5 for the delayed ref
+ * so its 12, 6 for the actual operation, and 6 for the delayed ref
* updates.
*/
- min_items += 10;
+ min_items += 12;
num_bytes = max_t(u64, num_bytes,
btrfs_calc_insert_metadata_size(fs_info, min_items));