[ECOS] RE : [ECOS] Is JFFS2 thread-safe?
Thu Nov 27 09:12:00 GMT 2003
And thank you for your answer.
> -----Message d'origine-----
> De : David Woodhouse [mailto:email@example.com]
> Envoyé : jeudi 27 novembre 2003 01:27
> À : Vincent Catros
> Cc : firstname.lastname@example.org
> Objet : Re: [ECOS] Is JFFS2 thread-safe?
> The core JFFS2 code is thread safe, assuming the Linux semaphore and
> spinlock primitives are correctly translated into eCos mutexes and
> preemption blocks. The bit that I haven't paid much attention to
> locking is the inode cache handling in fs-ecos.c.
> In fact, I suspect that is actually OK because we set the
> CYG_SYNCMODE_FILE_FILESYSTEM flag and hence the fileio layer ensures
> that only one file system method is invoked at a time. It would be
> better to do our own locking and drop that flag though, since it makes
> coordinating the locking with gcthread.c a little nicer.
If I understand, JFFS2 should be thread safe, but this has never been
tested since multual access is avoided by fileio layer when using
Am I wrong?
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