Re: [f2fs-dev] Lack of strictly ordered metadata crash recovery in f2fs

2018-04-25 Thread Jayashree Mohan
Hi Jaegeuk, Thanks for the quick reply! On Tue, Apr 24, 2018 at 11:48 PM Jaegeuk Kim wrote: > > Hi, > > On 04/24, Jayashree Mohan wrote: > > Hi, > > > > While testing filesystems for crash consistency, we came across a > > workload that could demonstrate that f2fs lacks strictly ordered > > meta

Re: [f2fs-dev] Lack of strictly ordered metadata crash recovery in f2fs

2018-04-24 Thread Jaegeuk Kim
Hi, On 04/24, Jayashree Mohan wrote: > Hi, > > While testing filesystems for crash consistency, we came across a > workload that could demonstrate that f2fs lacks strictly ordered > metadata behavior. > > Workload: > > mkdir A > sync() > rename(A, B) > creat (B/foo) > fsync (B/foo) > ---crash--

[f2fs-dev] Lack of strictly ordered metadata crash recovery in f2fs

2018-04-24 Thread Jayashree Mohan
Hi, While testing filesystems for crash consistency, we came across a workload that could demonstrate that f2fs lacks strictly ordered metadata behavior. Workload: mkdir A sync() rename(A, B) creat (B/foo) fsync (B/foo) ---crash--- For a strictly ordered metadata filesystem, if we fsync a file,