<html><body><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000"><div><style>body { line-height: 1.5; }body { font-size: 10.5pt; font-family: 微软雅黑; color: rgb(0, 0, 0); line-height: 1.5; }</style></div><div>Hello Ben,<br></div><div><br data-mce-bogus="1"></div><div>the RTEMS community is always happy to see the functionality growning, especially with additions, which are useful to real life applications.In general I think there are three options to add missing functionality to the RTEMS ecosystem:<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>1.) invest your own expertise and time to get it done and to get it integrated<br data-mce-bogus="1"></div><div>2.) find someone who has spare time to do it <br data-mce-bogus="1"></div><div>3.) fund the corresponding work with the money required<br data-mce-bogus="1"></div><div><br></div><div>If a faster startup of the existing jffs2 RTEMS port is crucial for you, option 3 may be interesting for you. Among others, we at embedded brains can create a quote for you for commercial support, with the goal to get the corresponding functionality ported and integrated. Please let me know if this is interesting for you.<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>Kind regards,<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>Thomas.<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><hr id="zwchr" data-marker="__DIVIDER__"><div data-marker="__HEADERS__"><b>Von: </b>"bin wang" <bin.wang@qkmtech.com><br><b>An: </b>"bin wang" <bin.wang@qkmtech.com>, "rtems-users@rtems.org" <users@rtems.org><br><b>Gesendet: </b>Dienstag, 30. Januar 2018 07:45:20<br><b>Betreff: </b>Re: jffs2 summary problem<br></div><div><br></div><div data-marker="__QUOTED_TEXT__"><div>>On 30/01/18 05:16, bin.wang@qkmtech.com wrote:</div>
<div><span style="font-size: 10.5pt; line-height: 1.5; background-color: window;">></span>> hi everyone</div>
<div><span style="font-size: 10.5pt; line-height: 1.5; background-color: window;">></span>></div>
<div><span style="font-size: 10.5pt; line-height: 1.5; background-color: window;">></span>> now i use jffs2 as my flash filesystem. but the time of the scan the </div>
<div><span style="font-size: 10.5pt; line-height: 1.5; background-color: window;">></span>> device is two long , i find that someone said that when i set the </div>
<div><span style="font-size: 10.5pt; line-height: 1.5; background-color: window;">></span>> CONFIG_JFFS2_SUMMARY macro ，the time will reduce too much。</div>
<div> </div>
<div><span style="font-size: 10.5pt; line-height: 1.5; background-color: window;">></span>This looks like a Linux configuration option.</div><br><div>yes , i has view some of the information,jffs2 is ported from linux environment to rtems. but i think the mount time is too long for me </div>
<div> </div>
<div><span style="font-size: 10.5pt; line-height: 1.5; background-color: window;">></span>></div>
<div><span style="font-size: 10.5pt; line-height: 1.5; background-color: window;">></span>> but i did not find the realization of the summary. i only find the </div>
<div><span style="font-size: 10.5pt; line-height: 1.5; background-color: window;">></span>> summary.h and no function realization.</div>
<div><span style="font-size: 10.5pt; line-height: 1.5; background-color: window;">></span>></div>
<div><span style="font-size: 10.5pt; line-height: 1.5; background-color: window;">></span>> if i want to use this to reduce the scan time . how should i do ?</div>
<div> </div>
<div><span style="font-size: 10.5pt; line-height: 1.5; background-color: window;">></span>You have to figure out how it works on Linux and how we can enable/port </div>
<div><span style="font-size: 10.5pt; line-height: 1.5; background-color: window;">></span>this to RTEMS.</div><br><div>because i did not find the realization of this feature in the rtems source code . i just find the header file of the summary. </div><div>i think i has no much time to do the port work and also i am not familiar with linux too . </div><div>is rtems develop group want to support this feature in jffs2? </div><div>thank you very much.</div>
<div> </div>
<div><span style="font-size: 10.5pt; line-height: 1.5; background-color: window;">></span>></div>
<div><span style="font-size: 10.5pt; line-height: 1.5; background-color: window;">></span>> i use rtems 4.11.2 and zynq 7000 platform.</div>
<div><span style="font-size: 10.5pt; line-height: 1.5; background-color: window;">></span>></div>
<div><span style="font-size: 10.5pt; line-height: 1.5; background-color: window;">></span>> best wishes</div>
<div><span style="font-size: 10.5pt; line-height: 1.5; background-color: window;">></span>> ben</div>
<div><span style="font-size: 10.5pt; line-height: 1.5; background-color: window;">></span>></div>
<div><span style="font-size: 10.5pt; line-height: 1.5; background-color: window;">></span>> ------------------------------------------------------------------------</div>
<div><span style="font-size: 10.5pt; line-height: 1.5; background-color: window;">></span>> bin.wang@qkmtech.com</div>
<div><span style="font-size: 10.5pt; line-height: 1.5; background-color: window;">></span>></div>
<div><span style="font-size: 10.5pt; line-height: 1.5; background-color: window;">></span>></div>
<div><span style="font-size: 10.5pt; line-height: 1.5; background-color: window;">></span>> _______________________________________________</div>
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<div><span style="font-size: 10.5pt; line-height: 1.5; background-color: window;">></span>-- </div>
<div><span style="font-size: 10.5pt; line-height: 1.5; background-color: window;">></span>Sebastian Huber, embedded brains GmbH</div>
<div><span style="font-size: 10.5pt; line-height: 1.5; background-color: window;">></span> </div>
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<br>_______________________________________________<br>users mailing list<br>users@rtems.org<br>http://lists.rtems.org/mailman/listinfo/users<br></div><div><br></div><div data-marker="__SIG_POST__">-- <br></div><div>-- <br>--------------------------------------------<br>embedded brains GmbH<br>Thomas Doerfler<br>Dornierstr. 4<br>D-82178 Puchheim<br>Germany<br>email: Thomas.Doerfler@embedded-brains.de<br>Phone: +49-89-18 94 741-12<br>Fax: +49-89-18 94 741-09<br>PGP: Public key available on request.<br><br>Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.</div></div></body></html>