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| author | Richard Weinberger <richard@nod.at> | 2016-10-19 15:59:12 +0200 |
|---|---|---|
| committer | Richard Weinberger <richard@nod.at> | 2016-12-12 23:07:38 +0100 |
| commit | d63d61c16972c667d770f713c21aa04e2c0489d2 (patch) | |
| tree | 9e40aed759c90f2435d36ea98a2ddbfed4c0e811 /fs/ubifs/tnc.c | |
| parent | cc41a536524fba126ab11c41a866cf9037adbaf8 (diff) | |
| download | linux-stable-d63d61c16972c667d770f713c21aa04e2c0489d2.tar.gz linux-stable-d63d61c16972c667d770f713c21aa04e2c0489d2.tar.bz2 linux-stable-d63d61c16972c667d770f713c21aa04e2c0489d2.zip | |
ubifs: Implement UBIFS_FLG_DOUBLE_HASH
This feature flag indicates that all directory entry nodes have a 32bit
cookie set and therefore UBIFS is allowed to perform lookups by hash.
Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'fs/ubifs/tnc.c')
| -rw-r--r-- | fs/ubifs/tnc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/ubifs/tnc.c b/fs/ubifs/tnc.c index 1bba4c8b5d3d..74ae2de949df 100644 --- a/fs/ubifs/tnc.c +++ b/fs/ubifs/tnc.c @@ -1930,6 +1930,9 @@ int ubifs_tnc_lookup_dh(struct ubifs_info *c, const union ubifs_key *key, int err; const struct ubifs_dent_node *dent = node; + if (!c->double_hash) + return -EOPNOTSUPP; + /* * We assume that in most of the cases there are no name collisions and * 'ubifs_tnc_lookup()' returns us the right direntry. |