Re: [PATCH v2] zram: support REQ_DISCARD

2014-03-06 Thread Minchan Kim
On Sat, Mar 01, 2014 at 12:24:37AM +0900, Joonsoo Kim wrote: > 2014-02-26 17:07 GMT+09:00 Minchan Kim : > > Hi Joonsoo, > > > > On Wed, Feb 26, 2014 at 02:23:15PM +0900, Joonsoo Kim wrote: > >> zram is ram based block device and can be used by backend of filesystem. > >> When filesystem deletes a f

Re: [PATCH v2] zram: support REQ_DISCARD

2014-02-28 Thread Joonsoo Kim
2014-02-26 17:07 GMT+09:00 Minchan Kim : > Hi Joonsoo, > > On Wed, Feb 26, 2014 at 02:23:15PM +0900, Joonsoo Kim wrote: >> zram is ram based block device and can be used by backend of filesystem. >> When filesystem deletes a file, it normally doesn't do anything on data >> block of that file. It ju

Re: [PATCH v2] zram: support REQ_DISCARD

2014-02-28 Thread Joonsoo Kim
2014-02-26 23:06 GMT+09:00 Jerome Marchand : > On 02/26/2014 02:57 PM, Sergey Senozhatsky wrote: >> On (02/26/14 14:44), Jerome Marchand wrote: >>> On 02/26/2014 02:16 PM, Sergey Senozhatsky wrote: Hello, On (02/26/14 14:23), Joonsoo Kim wrote: > zram is ram based block device an

Re: [PATCH v2] zram: support REQ_DISCARD

2014-02-26 Thread Jerome Marchand
On 02/26/2014 02:57 PM, Sergey Senozhatsky wrote: > On (02/26/14 14:44), Jerome Marchand wrote: >> On 02/26/2014 02:16 PM, Sergey Senozhatsky wrote: >>> Hello, >>> >>> On (02/26/14 14:23), Joonsoo Kim wrote: zram is ram based block device and can be used by backend of filesystem. When fil

Re: [PATCH v2] zram: support REQ_DISCARD

2014-02-26 Thread Sergey Senozhatsky
On (02/26/14 14:44), Jerome Marchand wrote: > On 02/26/2014 02:16 PM, Sergey Senozhatsky wrote: > > Hello, > > > > On (02/26/14 14:23), Joonsoo Kim wrote: > >> zram is ram based block device and can be used by backend of filesystem. > >> When filesystem deletes a file, it normally doesn't do anyth

Re: [PATCH v2] zram: support REQ_DISCARD

2014-02-26 Thread Jerome Marchand
On 02/26/2014 02:16 PM, Sergey Senozhatsky wrote: > Hello, > > On (02/26/14 14:23), Joonsoo Kim wrote: >> zram is ram based block device and can be used by backend of filesystem. >> When filesystem deletes a file, it normally doesn't do anything on data >> block of that file. It just marks on meta

Re: [PATCH v2] zram: support REQ_DISCARD

2014-02-26 Thread Sergey Senozhatsky
Hello, On (02/26/14 14:23), Joonsoo Kim wrote: > zram is ram based block device and can be used by backend of filesystem. > When filesystem deletes a file, it normally doesn't do anything on data > block of that file. It just marks on metadata of that file. This behavior > has no problem on disk b

Re: [PATCH v2] zram: support REQ_DISCARD

2014-02-26 Thread Minchan Kim
Hi Joonsoo, On Wed, Feb 26, 2014 at 02:23:15PM +0900, Joonsoo Kim wrote: > zram is ram based block device and can be used by backend of filesystem. > When filesystem deletes a file, it normally doesn't do anything on data > block of that file. It just marks on metadata of that file. This behavior

[PATCH v2] zram: support REQ_DISCARD

2014-02-25 Thread Joonsoo Kim
zram is ram based block device and can be used by backend of filesystem. When filesystem deletes a file, it normally doesn't do anything on data block of that file. It just marks on metadata of that file. This behavior has no problem on disk based block device, but has problems on ram based block d