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path: root/cryptfs/names_diriv.go
AgeCommit message (Collapse)Author
2016-01-25Convert fdLock to an RWMutex and protect the whole transactionJakob Unterwurzacher
...against concurrent closes. The testcase (set -e; while true; do truncate -s $RANDOM b; done) & (set -e; while true; do truncate -s $RANDOM b; done) & uncovered lots of unnecessary RMW failures that were the result of concurrent closes. With this patch, the only remaining error is "Truncate on forgotten file" that is probably caused by a problem in the go-fuse lib ( https://github.com/hanwen/go-fuse/issues/95 )
2016-01-24Downgrade "gocryptfs.diriv not found" warning if the directory was deletedJakob Unterwurzacher
The directory may have been concurrently deleted or moved. Failure to read the diriv is not an error in that case. Downgrading the message to debug.
2015-12-08Add EME filename encryption & enable it by defaultJakob Unterwurzacher
2015-12-06fallocate the space needed for the file header beforehandJakob Unterwurzacher
This makes sure writing to a file fails early if the underlying filesystem does not support fallocate. It also prevents partial header write due to ENOSPC.
2015-11-29Run go fmtJakob Unterwurzacher
2015-11-29Add single-element cache for DirIV lookupJakob Unterwurzacher
Another 3x performance boost for applications that walk the directory tree. Excerpt from performance.txt: VERSION UNTAR LS RM v0.4 48 1.5 5 v0.5-rc1 56 7 19 v0.5-rc1-1 54 4.1 9 v0.5-rc1-2 45 1.7 3.4 <---- THIS VERSION
2015-11-29OpenDir performance: Read DirIV once and reuse it for all namesJakob Unterwurzacher
Formerly, we called decryptPath for every name. That resulted in a directory walk that reads in all diriv files on the way. Massive improvement for RM and LS (check performance.txt for details) VERSION UNTAR RM LS v0.4 48 5 1.5 v0.5-rc1 56 19 7 v0.5-rc1-1 54 9 4.1 <---- THIS VERSION
2015-11-28diriv: fix readdirJakob Unterwurzacher
It decrypted all file names using the root directory iv
2015-11-28diriv: use "DirIV" flag to discern and support mounting old filesystemsJakob Unterwurzacher
2015-11-27Run go fmtJakob Unterwurzacher
2015-11-27diriv: Define "DirIV" feature flagJakob Unterwurzacher
(unused so far)
2015-11-27diriv: Move WriteDirIV() to cryptfs; add locking to Mkdir, RmdirJakob Unterwurzacher
2015-11-27diriv: Convert filename encryption users to dirivJakob Unterwurzacher