diff options
| author | Kent Overstreet <kent.overstreet@linux.dev> | 2025-05-19 10:31:44 -0400 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2025-05-21 20:15:10 -0400 |
| commit | 4ba99dde330b2d4b6de65f27ced60e7f0fbc21c2 (patch) | |
| tree | 76ce11291f936935d7a025c73f6c6796211cd4cf /fs/bcachefs/inode.c | |
| parent | 77eac89c7943a4ed5c9bc42def9b3140d951184f (diff) | |
bcachefs: BCH_INODE_has_case_insensitive
Add a flag for tracking whether a directory has case-insensitive
descendents - so that overlayfs can disallow mounting, even though the
filesystem supports case insensitivity.
This is a new on disk format version, with a (cheap) upgrade to ensure
the flag is correctly set on existing inodes.
Create, rename and fssetxattr are all plumbed to ensure the new flag is
set, and we've got new fsck code that hooks into check_inode(0.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/inode.c')
| -rw-r--r-- | fs/bcachefs/inode.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/fs/bcachefs/inode.c b/fs/bcachefs/inode.c index 13c1e9df252a1..5cf70108ae2f7 100644 --- a/fs/bcachefs/inode.c +++ b/fs/bcachefs/inode.c @@ -908,7 +908,8 @@ void bch2_inode_init_early(struct bch_fs *c, get_random_bytes(&inode_u->bi_hash_seed, sizeof(inode_u->bi_hash_seed)); } -void bch2_inode_init_late(struct bch_inode_unpacked *inode_u, u64 now, +void bch2_inode_init_late(struct bch_fs *c, + struct bch_inode_unpacked *inode_u, u64 now, uid_t uid, gid_t gid, umode_t mode, dev_t rdev, struct bch_inode_unpacked *parent) { @@ -935,6 +936,9 @@ void bch2_inode_init_late(struct bch_inode_unpacked *inode_u, u64 now, if (!S_ISDIR(mode)) inode_u->bi_casefold = 0; + + if (bch2_inode_casefold(c, inode_u)) + inode_u->bi_flags |= BCH_INODE_has_case_insensitive; } void bch2_inode_init(struct bch_fs *c, struct bch_inode_unpacked *inode_u, @@ -942,7 +946,7 @@ void bch2_inode_init(struct bch_fs *c, struct bch_inode_unpacked *inode_u, struct bch_inode_unpacked *parent) { bch2_inode_init_early(c, inode_u); - bch2_inode_init_late(inode_u, bch2_current_time(c), + bch2_inode_init_late(c, inode_u, bch2_current_time(c), uid, gid, mode, rdev, parent); } @@ -1279,7 +1283,7 @@ int bch2_inode_set_casefold(struct btree_trans *trans, subvol_inum inum, bi->bi_casefold = v + 1; bi->bi_fields_set |= BIT(Inode_opt_casefold); - return 0; + return bch2_maybe_propagate_has_case_insensitive(trans, inum, bi); #else bch_err(c, "Cannot use casefolding on a kernel without CONFIG_UNICODE"); return -EOPNOTSUPP; |