btrfs: switch seed device to list api

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While this patch touches a bunch of files the conversion is
straighforward. Instead of using the implicit linked list anchored at
btrfs_fs_devices::seed the code is switched to using
list_for_each_entry.

Previous patches in the series already factored out code that processed
both main and seed devices so in those cases the factored out functions
are called on the main fs_devices and then on every seed dev inside
list_for_each_entry.

Using list api also allows to simplify deletion from the seed dev list
performed in btrfs_rm_device and btrfs_rm_dev_replace_free_srcdev by
substituting a while() loop with a simple list_del_init.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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This commit is contained in:

Nikolay Borisov 2020-07-16 10:25:33 +03:00 • committed by David Sterba

parent c4989c2fd0

commit 944d3f9fac

4 changed files with 70 additions and 83 deletions

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39

fs/btrfs/disk-io.c

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9

fs/btrfs/reada.c

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105

fs/btrfs/volumes.c

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2

fs/btrfs/volumes.h

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