restic/changelog
greatroar 3b24c15c3d fuse: Mix inode hashes in a non-symmetric way
Since 0.15 (#4020), inodes are generated as hashes of names, xor'd with
the parent inode. That means that the inode of a/b/b is

	h(a/b/b) = h(a) ^ h(b) ^ h(b) = h(a).

I.e., the grandchild has the same inode as the grandparent. GNU find
trips over this because it thinks it has encountered a loop in the
filesystem, and fails to search a/b/b. This happens more generally when
the same name occurs an even number of times.

Fix this by multiplying the parent by a large prime, so the combining
operation is not longer symmetric in its arguments. This is what the FNV
hash does, which we used prior to 0.15. The hash is now

	h(a/b/b) = h(b) ^ p*(h(b) ^ p*h(a))

Note that we already ensure that h(x) is never zero.

Collisions can still occur, but they should be much less likely to occur
within a single path.

Fixes #4253.
2023-04-14 20:50:39 +02:00
..
0.6.0_2017-05-29 Update changelog/ for new version of calens 2018-02-16 23:05:58 +01:00
0.6.1_2017-06-01 Update changelog/ for new version of calens 2018-02-16 23:05:58 +01:00
0.7.0_2017-07-01 Update changelog/ for new version of calens 2018-02-16 23:05:58 +01:00
0.7.1_2017-07-22 Fix typo in changelog 2021-08-21 12:16:04 +02:00
0.7.2_2017-09-13 Update changelog/ for new version of calens 2018-02-16 23:05:58 +01:00
0.7.3_2017-09-20 Update changelog/ for new version of calens 2018-02-16 23:05:58 +01:00
0.8.0_2017-11-26 Fix typos 2020-05-16 14:05:26 +08:00
0.8.1_2017-12-27 Update changelog/ for new version of calens 2018-02-16 23:05:58 +01:00
0.8.2_2018-02-17 changelog: Add release date for 0.8.2 2018-02-17 20:26:43 +01:00
0.8.3_2018-02-26 Move changelog entries to unreleased version 2018-03-05 20:32:10 +01:00
0.9.0_2018-05-21 Remove superseded feature from the CHANGELOG 2018-05-22 20:57:07 +02:00
0.9.1_2018-06-10 Fix changelog entry 2018-06-10 11:29:57 +02:00
0.9.2_2018-08-06 Create changelog/ release subdir for 0.9.2 2018-08-06 21:28:16 +02:00
0.9.3_2018-10-13 Correct summary for #1978 2018-10-28 20:55:49 +01:00
0.9.4_2019-01-06 Create changelog dir for 0.9.4 2019-01-06 21:39:56 +01:00
0.9.5_2019-04-23 Move changelog entry for #2179 2019-11-24 15:15:19 +01:00
0.9.6_2019-11-22 Move changelog entry for #2179 2019-11-24 15:15:19 +01:00
0.10.0_2020-09-19 Add gitignore to changelog/unreleased 2020-11-05 09:01:32 +01:00
0.11.0_2020-11-05 Prepare changelog for 0.11.0 2020-11-05 09:41:22 +01:00
0.12.0_2021-02-14 Prepare changelog for 0.12.0 2021-02-14 11:44:00 +01:00
0.12.1_2021-08-03 Prepare changelog for 0.12.1 2021-08-03 11:45:19 +02:00
0.13.0_2022-03-26 Prepare changelog for 0.13.0 2022-03-26 20:09:39 +01:00
0.14.0_2022-08-25 Prepare changelog for 0.14.0 2022-08-25 19:54:01 +02:00
0.15.0_2023-01-12 Prepare changelog for 0.15.0 2023-01-12 20:50:44 +01:00
0.15.1_2023-01-30 Prepare changelog for 0.15.1 2023-01-30 20:43:15 +01:00
unreleased fuse: Mix inode hashes in a non-symmetric way 2023-04-14 20:50:39 +02:00
changelog-github.tmpl Fix linebreak in GitHub changelog template 2018-02-26 21:41:37 +01:00
CHANGELOG.tmpl Fix template for new version of calens 2020-01-01 11:58:21 +01:00
TEMPLATE Fix wording in changelog template 2022-07-09 22:13:54 +02:00