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-rw-r--r--fs/bcachefs/sb-downgrade.c90
1 files changed, 81 insertions, 9 deletions
diff --git a/fs/bcachefs/sb-downgrade.c b/fs/bcachefs/sb-downgrade.c
index 4919237bbe..441dcb1bf1 100644
--- a/fs/bcachefs/sb-downgrade.c
+++ b/fs/bcachefs/sb-downgrade.c
@@ -12,33 +12,105 @@
#include "sb-errors.h"
#include "super-io.h"
+#define RECOVERY_PASS_ALL_FSCK BIT_ULL(63)
+
/*
- * Downgrade table:
- * When dowgrading past certain versions, we need to run certain recovery passes
- * and fix certain errors:
+ * Upgrade, downgrade tables - run certain recovery passes, fix certain errors
*
* x(version, recovery_passes, errors...)
*/
+#define UPGRADE_TABLE() \
+ x(backpointers, \
+ RECOVERY_PASS_ALL_FSCK) \
+ x(inode_v3, \
+ RECOVERY_PASS_ALL_FSCK) \
+ x(unwritten_extents, \
+ RECOVERY_PASS_ALL_FSCK) \
+ x(bucket_gens, \
+ BIT_ULL(BCH_RECOVERY_PASS_bucket_gens_init)| \
+ RECOVERY_PASS_ALL_FSCK) \
+ x(lru_v2, \
+ RECOVERY_PASS_ALL_FSCK) \
+ x(fragmentation_lru, \
+ RECOVERY_PASS_ALL_FSCK) \
+ x(no_bps_in_alloc_keys, \
+ RECOVERY_PASS_ALL_FSCK) \
+ x(snapshot_trees, \
+ RECOVERY_PASS_ALL_FSCK) \
+ x(snapshot_skiplists, \
+ BIT_ULL(BCH_RECOVERY_PASS_check_snapshots), \
+ BCH_FSCK_ERR_snapshot_bad_depth, \
+ BCH_FSCK_ERR_snapshot_bad_skiplist) \
+ x(deleted_inodes, \
+ BIT_ULL(BCH_RECOVERY_PASS_check_inodes), \
+ BCH_FSCK_ERR_unlinked_inode_not_on_deleted_list) \
+ x(rebalance_work, \
+ BIT_ULL(BCH_RECOVERY_PASS_set_fs_needs_rebalance))
#define DOWNGRADE_TABLE()
-struct downgrade_entry {
+struct upgrade_downgrade_entry {
u64 recovery_passes;
u16 version;
u16 nr_errors;
const u16 *errors;
};
-#define x(ver, passes, ...) static const u16 ver_##errors[] = { __VA_ARGS__ };
+#define x(ver, passes, ...) static const u16 upgrade_##ver##_errors[] = { __VA_ARGS__ };
+UPGRADE_TABLE()
+#undef x
+
+static const struct upgrade_downgrade_entry upgrade_table[] = {
+#define x(ver, passes, ...) { \
+ .recovery_passes = passes, \
+ .version = bcachefs_metadata_version_##ver,\
+ .nr_errors = ARRAY_SIZE(upgrade_##ver##_errors), \
+ .errors = upgrade_##ver##_errors, \
+},
+UPGRADE_TABLE()
+#undef x
+};
+
+void bch2_sb_set_upgrade(struct bch_fs *c,
+ unsigned old_version,
+ unsigned new_version)
+{
+ lockdep_assert_held(&c->sb_lock);
+
+ struct bch_sb_field_ext *ext = bch2_sb_field_get(c->disk_sb.sb, ext);
+
+ for (const struct upgrade_downgrade_entry *i = upgrade_table;
+ i < upgrade_table + ARRAY_SIZE(upgrade_table);
+ i++)
+ if (i->version > old_version && i->version <= new_version) {
+ u64 passes = i->recovery_passes;
+
+ if (passes & RECOVERY_PASS_ALL_FSCK)
+ passes |= bch2_fsck_recovery_passes();
+ passes &= ~RECOVERY_PASS_ALL_FSCK;
+
+ ext->recovery_passes_required[0] |=
+ cpu_to_le64(bch2_recovery_passes_to_stable(passes));
+
+ for (const u16 *e = i->errors;
+ e < i->errors + i->nr_errors;
+ e++) {
+ __set_bit(*e, c->sb.errors_silent);
+ ext->errors_silent[*e / 64] |= cpu_to_le64(BIT_ULL(*e % 64));
+ }
+ }
+}
+
+#define x(ver, passes, ...) static const u16 downgrade_ver_##errors[] = { __VA_ARGS__ };
DOWNGRADE_TABLE()
#undef x
-static const struct downgrade_entry downgrade_table[] = {
+static const struct upgrade_downgrade_entry downgrade_table[] = {
#define x(ver, passes, ...) { \
.recovery_passes = passes, \
.version = bcachefs_metadata_version_##ver,\
- .nr_errors = ARRAY_SIZE(ver_##errors), \
- .errors = ver_##errors, \
+ .nr_errors = ARRAY_SIZE(downgrade_##ver##_errors), \
+ .errors = downgrade_##ver##_errors, \
},
DOWNGRADE_TABLE()
#undef x
@@ -118,7 +190,7 @@ int bch2_sb_downgrade_update(struct bch_fs *c)
darray_char table = {};
int ret = 0;
- for (const struct downgrade_entry *src = downgrade_table;
+ for (const struct upgrade_downgrade_entry *src = downgrade_table;
src < downgrade_table + ARRAY_SIZE(downgrade_table);
src++) {
if (BCH_VERSION_MAJOR(src->version) != BCH_VERSION_MAJOR(le16_to_cpu(c->disk_sb.sb->version)))