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bcachefs: Improved comment for bch2_replicas_gc2()

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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2023-05-02 18:22:12 -04:00
parent cb1b479dc1
commit 38e3d93fa1
1 changed files with 8 additions and 2 deletions
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10
fs/bcachefs/replicas.c
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@ -550,8 +550,14 @@ int bch2_replicas_gc_start(struct bch_fs *c, unsigned typemask)
return 0;
}
/* New much simpler mechanism for clearing out unneeded replicas entries: */
/*
* New much simpler mechanism for clearing out unneeded replicas entries - drop
* replicas entries that have 0 sectors used.
*
* However, we don't track sector counts for journal usage, so this doesn't drop
* any BCH_DATA_journal entries; the old bch2_replicas_gc_(start|end) mechanism
* is retained for that.
*/
int bch2_replicas_gc2(struct bch_fs *c)
{
struct bch_replicas_cpu new = { 0 };