Re: Documenting the crash consistency guarantees of file systems

2019-02-13 Thread Vijay Chidambaram
On Wed, Feb 13, 2019 at 7:47 PM Dave Chinner wrote: > > On Wed, Feb 13, 2019 at 12:35:16PM -0600, Vijay Chidambaram wrote: > > On Wed, Feb 13, 2019 at 12:22 PM Amir Goldstein wrote: > > > On Wed, Feb 13, 2019 at 7:06 PM Jayashree Mohan > > > wrote: > > AFAIK, any file system which persists thin

Re: Documenting the crash consistency guarantees of file systems

2019-02-13 Thread Dave Chinner
On Wed, Feb 13, 2019 at 12:35:16PM -0600, Vijay Chidambaram wrote: > On Wed, Feb 13, 2019 at 12:22 PM Amir Goldstein wrote: > > On Wed, Feb 13, 2019 at 7:06 PM Jayashree Mohan wrote: > AFAIK, any file system which persists things out of order to increase > performance does not provide strictly or

Re: Documenting the crash consistency guarantees of file systems

2019-02-13 Thread Amir Goldstein
On Wed, Feb 13, 2019 at 8:35 PM Vijay Chidambaram wrote: > > On Wed, Feb 13, 2019 at 12:22 PM Amir Goldstein wrote: > > > > On Wed, Feb 13, 2019 at 7:06 PM Jayashree Mohan wrote: > > > > > > Hi Amir! > > > > > > Thanks for putting across your thoughts on this. Your suggestions > > > definitely m

Re: Documenting the crash consistency guarantees of file systems

2019-02-13 Thread Vijay Chidambaram
On Wed, Feb 13, 2019 at 12:22 PM Amir Goldstein wrote: > > On Wed, Feb 13, 2019 at 7:06 PM Jayashree Mohan wrote: > > > > Hi Amir! > > > > Thanks for putting across your thoughts on this. Your suggestions > > definitely make sense, and we'll compile these information and submit > > a patch for re

Re: Documenting the crash consistency guarantees of file systems

2019-02-13 Thread Amir Goldstein
On Wed, Feb 13, 2019 at 7:06 PM Jayashree Mohan wrote: > > Hi Amir! > > Thanks for putting across your thoughts on this. Your suggestions > definitely make sense, and we'll compile these information and submit > a patch for review. > > When it comes to strictly ordered metadata consistency, to the

Re: Documenting the crash consistency guarantees of file systems

2019-02-13 Thread Jayashree Mohan
Hi Amir! Thanks for putting across your thoughts on this. Your suggestions definitely make sense, and we'll compile these information and submit a patch for review. When it comes to strictly ordered metadata consistency, to the best of our knowledge only xfs claims to provide it explicitly. In ex

Re: Documenting the crash consistency guarantees of file systems

2019-02-11 Thread Amir Goldstein
[CC: linux-fsdevel,linux-doc] On Sat, Feb 9, 2019 at 12:47 AM Jayashree Mohan wrote: > > Hi all, > > We all understand that providing strong crash consistency guarantees > while not impacting performance, can be tricky. While you strive to > achieve that, it is worth documenting the expected/curr