[PATCH] PUFFS with cache TTL from filesystem

2012-04-02 Thread Emmanuel Dreyfus
Hi I am ready to commit the following changes, which enable our FUSE emulation to take advantage of name and attribute caching, with TTL given by the filesystem. It makes performances much better while prseerving the ability to run a distributed filesystem:

Re: GSOC 2012 project clarification

2012-04-02 Thread Mouse
The deletion is generally not at the time of unlink. It happens when the file isn't referenced by anything anymore. Yeah, but in most cases isn't that at unlink time? File destruction _can_ be delayed well beyond the no names refer to it point, but at least in my experience that is very much

Re: GSOC 2012 project clarification

2012-04-02 Thread Alistair Crooks
On Mon, Apr 02, 2012 at 08:48:35PM -0400, Matthew Mondor wrote: So by generating some pseudo random numbers we can erase the previous secure data. I'm not sure that pseudo-random numbers help security in the general case, compared to just zeros. For a plain harddisk, either one is