[DNX#2006033142000123] [U-Boot-Users] jffs2 view u-boot/linux

[DENX Support System]

Hello list,

inside the automatic U-Boot patch tracking system a new ticket
[DNX#2006033142000123] was created:

<snip>
> Jonas Dietsche wrote:
> 
> > ******The directory Entries******
> > 
> > testfile
> 
> >          build_list: version =  00000001
> >          build_list: ino =  00000002
>  
> > testfile
> 
> >          build_list: version =  00000002
> >          build_list: ino =  00000000
> 
> > How can I manage it that the deleted testfile isn't displayed anymore?
> 
> Have you tried using CFG_JFFS2_SORT_FRAGMENTS? I use it and I tried a
> similar test and testfile is deleted for u-boot (for U-Boot 1.1.0).
> Both jffs2_1pass.c and README.JFFS2 say it is needed if the boot 
> partition is writable.
> 
> In this case it may just be masking a bug in jffs2_1pass_find_inode().
> The search  for the most recent directory entry ignores a directory 
> entry with an inode of 0 (unlinked file) even if the version is newer, 
> so deletion directory entries are ignored. This doesn't look right 
> to me: 
> 
> 	for(b = pL->dir.listHead; b; b = b->next, counter++) {
> 		jDir = (struct jffs2_raw_dirent *) (b->offset);
> 		if ((pino == jDir->pino) && (len == jDir->nsize) &&
> 		    (jDir->ino) &&	/* 0 for unlink */
> 		    ^^^^^^^^^^^
> 		    (!strncmp(jDir->name, name, len))) {	/* a
> match */
> 			if (jDir->version < version)
> 				continue;
> 
> With your test this would find version 1 of the directory entry and
> ignore version 2, which unlinks the file.
> 
> With CFG_JFFS2_SORT_FRAGMENTS all directory entries except the most 
> recent version have their inode set to 0 during the sort, so the
> obsolete directory entry would be ignored too.  
> 
> > Is this a NAND specific problem?
> 
> Probably not.
> 
> Dave Ellis
> 
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> 
> 
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</snip>

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