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btrfs: convert block group bit field to use bit helpers

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We use a bit field in the btrfs_block_group for different flags, however
this is awkward because we have to hold the block_group->lock for any
modification of any of these fields, and makes the code clunky for a few
of these flags.  Convert these to a properly flags setup so we can
utilize the bit helpers.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Josef Bacik 2022-07-15 15:45:24 -04:00 • committed by David Sterba
parent 723de71d41
commit 3349b57fd4
9 changed files with 71 additions and 56 deletions
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6
fs/btrfs/dev-replace.c
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@ -546,7 +546,7 @@ static int mark_block_group_to_copy(struct btrfs_fs_info *fs_info,
continue;
spin_lock(&cache->lock);
cache->to_copy = 1;
set_bit(BLOCK_GROUP_FLAG_TO_COPY, &cache->runtime_flags);
spin_unlock(&cache->lock);
btrfs_put_block_group(cache);
@ -577,7 +577,7 @@ bool btrfs_finish_block_group_to_copy(struct btrfs_device *srcdev,
return true;
spin_lock(&cache->lock);
if (cache->removed) {
if (test_bit(BLOCK_GROUP_FLAG_REMOVED, &cache->runtime_flags)) {
spin_unlock(&cache->lock);
return true;
}
@ -611,7 +611,7 @@ bool btrfs_finish_block_group_to_copy(struct btrfs_device *srcdev,
/* Last stripe on this device */
spin_lock(&cache->lock);
cache->to_copy = 0;
clear_bit(BLOCK_GROUP_FLAG_TO_COPY, &cache->runtime_flags);
spin_unlock(&cache->lock);
return true;