btrfs: use correct compare function of dirty_metadata_bytes

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commit d814a49198 upstream.

We use customized, nodesize batch value to update dirty_metadata_bytes.
We should also use batch version of compare function or we will easily
goto fast path and get false result from percpu_counter_compare().

Fixes: e2d845211e ("Btrfs: use percpu counter for dirty metadata count")
Signed-off-by: Ethan Lien <ethanlien@synology.com>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
[bwh: Backported to 3.16: In __btrfs_btree_balance_dirty(), use
 root->fs_info instead of fs_info]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

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Ethan Lien 2018-07-02 15:44:58 +08:00 • committed by Ben Hutchings

parent 5f2c8b3cee

commit 8c4b98ace6

1 changed files with 6 additions and 4 deletions

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fs/btrfs/disk-io.c

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