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| author | Kent Overstreet <kent.overstreet@gmail.com> | 2021-04-24 16:32:35 -0400 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-10-22 17:09:02 -0400 |
| commit | aae15aafcd43ec5346ac6c3f61c09798d26593ee (patch) | |
| tree | 49df821335528b7d153ea17f6cfaf99c72321f3b /fs/bcachefs/error.h | |
| parent | 4932e07ea04bcc7f1649052183d1ebbab30c711c (diff) | |
| download | lwn-aae15aafcd43ec5346ac6c3f61c09798d26593ee.tar.gz lwn-aae15aafcd43ec5346ac6c3f61c09798d26593ee.zip | |
bcachefs: New and improved topology repair code
This splits out btree topology repair into a separate pass, and makes
some improvements:
- When we have to pick which of two overlapping nodes to drop keys
from, we use the btree node header sequence number to preserve the
newer node
- the gc code has been changed so that it doesn't bail out if we're
continuing/ignoring on fsck error - this way the dump tool can skip
running the repair pass but still walk all reachable metadata
- add a new superblock flag indicating when a filesystem is known to
have btree topology issues, and the topology repair pass should be
run
- changing the start/end of a node might mean keys in that node have to
be deleted: this patch handles that better by splitting it out into a
separate function and running it explicitly in the topology repair
code, previously those keys were only being dropped when the btree
node was read in.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/error.h')
| -rw-r--r-- | fs/bcachefs/error.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/bcachefs/error.h b/fs/bcachefs/error.h index 0e49fd728e44..d8cd19b3f63c 100644 --- a/fs/bcachefs/error.h +++ b/fs/bcachefs/error.h @@ -29,6 +29,8 @@ struct work_struct; bool bch2_inconsistent_error(struct bch_fs *); +void bch2_topology_error(struct bch_fs *); + #define bch2_fs_inconsistent(c, ...) \ ({ \ bch_err(c, __VA_ARGS__); \ @@ -88,6 +90,7 @@ enum fsck_err_ret { FSCK_ERR_IGNORE = 0, FSCK_ERR_FIX = 1, FSCK_ERR_EXIT = 2, + FSCK_ERR_START_TOPOLOGY_REPAIR = 3, }; struct fsck_err_state { |