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bcachefs: Shrink superblock downgrade table

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Don't generate entries for versions that won't be able to mount.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet
2025-05-21 20:14:20 -04:00
parent 1c8dfd7ba5
commit 0dc73809e9
1 changed files with 3 additions and 0 deletions
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fs/bcachefs/sb-downgrade.c
+3
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@@ -374,6 +374,9 @@ int bch2_sb_downgrade_update(struct bch_fs *c)
if (BCH_VERSION_MAJOR(src->version) != BCH_VERSION_MAJOR(le16_to_cpu(c->disk_sb.sb->version)))
continue;
if (src->version < c->sb.version_incompat)
continue;
struct bch_sb_field_downgrade_entry *dst;
unsigned bytes = sizeof(*dst) + sizeof(dst->errors[0]) * src->nr_errors;