Mirror of gocryptfs source code on Github http://nuetzlich.net/cgit/gocryptfs/atom?h=xattr_user_buffer 2026-02-03T19:28:10+00:00 2026-02-03T19:28:10+00:00 Jakob Unterwurzacher 2026-02-02T21:18:25+00:00 urn:sha1:14045511d3d91f36845a138359718c0fe7dff21c This huge buffer showed up big time in ./profiling/ls.bash and caused a 2x LS benchmark slowdown. Instead of the fixed-size buffer, use the buffer size hint the user has provided us. We return inaccurate (larger than actual, which should be safe) numbers when the user has provided no buffer (size probe). 2026-01-18T18:48:51+00:00 Jarek Kowalski 2026-01-18T18:48:51+00:00 urn:sha1:6013d56f0c09100190107613ce8c5c4c929216dd * added -noxattr flag which ignores all xattr operations 2021-12-09T16:55:05+00:00 Jakob Unterwurzacher 2021-12-09T16:55:05+00:00 urn:sha1:bd1ecf537983ee5207e78f9bcd6a6ae50c1b4c62 Running the tests we have lots of these: Openat: O_NOFOLLOW missing: flags = 0x4 -wpanic turns this warning into a panic: Openat: O_NOFOLLOW missing: flags = 0x4 panic: -wpanic turns this warning into a panic: Openat: O_NOFOLLOW missing: flags = 0x4 goroutine 114 [running]: log.(*Logger).Panic(0x14000118280, {0x14000313ca8, 0x1, 0x1}) log/log.go:224 +0x90 github.com/rfjakob/gocryptfs/v2/internal/tlog.(*toggledLogger).Printf(0x14000076780, {0x1009dc2e8, 0x27}, {0x14000313d18, 0x1, 0x1}) github.com/rfjakob/gocryptfs/v2/internal/tlog/log.go:78 +0x168 github.com/rfjakob/gocryptfs/v2/internal/syscallcompat.Openat(0x9, {0x1009d0747, 0x1}, 0x4, 0x0) github.com/rfjakob/gocryptfs/v2/internal/syscallcompat/sys_common.go:59 +0xf0 github.com/rfjakob/gocryptfs/v2/internal/fusefrontend.(*Node).getXAttr(0x14000142000, {0x1400001c140, 0x3a}) github.com/rfjakob/gocryptfs/v2/internal/fusefrontend/node_xattr_darwin.go:30 +0x8c github.com/rfjakob/gocryptfs/v2/internal/fusefrontend.(*Node).Getxattr(0x14000142000, {0x100a7eba0, 0x1400000c2e8}, {0x14000016348, 0x14}, {0x14000326000, 0x20, 0x4000}) github.com/rfjakob/gocryptfs/v2/internal/fusefrontend/node_xattr.go:65 +0x1ac github.com/hanwen/go-fuse/v2/fs.(*rawBridge).GetXAttr(0x1400008e140, 0x140001901e0, 0x140001133c0, {0x14000016348, 0x14}, {0x14000326000, 0x20, 0x4000}) github.com/hanwen/go-fuse/v2@v2.1.1-0.20210825171523-3ab5d95a30ae/fs/bridge.go:685 +0x114 github.com/hanwen/go-fuse/v2/fuse.doGetXAttr(0x14000144000, 0x14000113200) github.com/hanwen/go-fuse/v2@v2.1.1-0.20210825171523-3ab5d95a30ae/fuse/opcode.go:270 +0x224 github.com/hanwen/go-fuse/v2/fuse.(*Server).handleRequest(0x14000144000, 0x14000113200) github.com/hanwen/go-fuse/v2@v2.1.1-0.20210825171523-3ab5d95a30ae/fuse/server.go:499 +0x214 created by github.com/hanwen/go-fuse/v2/fuse.(*Server).loop github.com/hanwen/go-fuse/v2@v2.1.1-0.20210825171523-3ab5d95a30ae/fuse/server.go:470 +0xac https://github.com/rfjakob/gocryptfs/issues/625 2021-08-23T13:05:15+00:00 Jakob Unterwurzacher 2021-08-23T13:05:15+00:00 urn:sha1:69d88505fd7f4cb0d9e4f1918de296342fe05858 Our git version is v2+ for some time now, but go.mod still declared v1. Hopefully making both match makes https://pkg.go.dev/github.com/rfjakob/gocryptfs/v2 work. All the import paths have been fixed like this: find . -name \*.go | xargs sed -i s%github.com/rfjakob/gocryptfs/%github.com/rfjakob/gocryptfs/v2/% 2021-06-25T11:56:53+00:00 Jakob Unterwurzacher 2021-06-25T09:33:18+00:00 urn:sha1:84e702126ac4f017e12150532bfaed675dee2927 The new contrib/maxlen.bash showed that we have exponential runtime with respect to directory depth. The new recursive diriv caching is a lot smarter as it caches intermediate lookups. maxlen.bash now completes in a few seconds. xfstests results same as https://github.com/rfjakob/fuse-xfstests/blob/2d158e4c82be85c15269af77498e353f928f4fab/screenlog.0 : Failures: generic/035 generic/062 generic/080 generic/093 generic/099 generic/215 generic/285 generic/319 generic/426 generic/444 generic/467 generic/477 generic/523 Failed 13 of 580 tests benchmark.bash results are identical: $ ./benchmark.bash Testing gocryptfs at /tmp/benchmark.bash.BdQ: gocryptfs v2.0.1-17-g6b09bc0; go-fuse v2.1.1-0.20210611132105-24a1dfe6b4f8; 2021-06-25 go1.16.5 linux/amd64 /tmp/benchmark.bash.BdQ.mnt is a mountpoint WRITE: 262144000 bytes (262 MB, 250 MiB) copied, 0,4821 s, 544 MB/s READ: 262144000 bytes (262 MB, 250 MiB) copied, 0,266061 s, 985 MB/s UNTAR: 8,280 MD5: 4,564 LS: 1,745 RM: 2,244 2021-06-02T17:10:36+00:00 Jakob Unterwurzacher 2021-06-02T17:10:36+00:00 urn:sha1:a38e5988bae3319a2c1c6745064f5785a0971d05 The result of setting an acl depends on who runs the operation! Fixes fuse-xfstests generic/375 (see https://github.com/rfjakob/fuse-xfstests/wiki/results_2021-05-19) 2020-09-09T09:17:19+00:00 Jakob Unterwurzacher 2020-09-09T09:17:19+00:00 urn:sha1:ac687d53593d8215b881db92fe2d1bbbd2d2d774 2020-07-14T17:55:20+00:00 Jakob Unterwurzacher 2020-07-14T17:55:20+00:00 urn:sha1:57d572dbc10cfb1d14642598b0827d4119b26b64 gocryptfs/tests/xattr passes.