[RTEMS Project] #3465: Integrate all changes from Linux v3.11 to v4.17 made in the JFFS2 sources

[RTEMS trac]

#3465: Integrate all changes from Linux v3.11 to v4.17 made in the JFFS2 sources
------------------------------+-----------------------------
  Reporter:  Sebastian Huber  |      Owner:  Sebastian Huber
      Type:  task             |     Status:  assigned
  Priority:  normal           |  Milestone:  5.1
 Component:  fs/jaffs2        |    Version:  5
  Severity:  normal           |   Keywords:
Blocked By:                   |   Blocking:
------------------------------+-----------------------------
 The original import version of the JFFS2 sources was Linux v3.11
 (September 2013). Update the JFFS2 sources to Linux v4.17.

 The Git command to generate the patches is:
 {{{
 git format-patch v3.11..v4.17 -- include/uapi/linux/jffs2.h
 fs/jffs2/LICENCE fs/jffs2/acl.h fs/jffs2/build.c fs/jffs2/compr.c
 fs/jffs2/compr.h fs/jffs2/compr_rtime.c fs/jffs2/compr_rubin.c
 fs/jffs2/compr_zlib.c fs/jffs2/debug.c fs/jffs2/debug.h fs/jffs2/erase.c
 fs/jffs2/gc.c fs/jffs2/jffs2_fs_i.h fs/jffs2/jffs2_fs_sb.h
 fs/jffs2/nodelist.c fs/jffs2/nodelist.h fs/jffs2/nodemgmt.c
 fs/jffs2/read.c fs/jffs2/readinode.c fs/jffs2/scan.c fs/jffs2/summary.h
 fs/jffs2/write.c fs/jffs2/xattr.h
 }}}

 We need a source file transformation in the patches:
 {{{
 sed -i 's%/fs/jffs2%/cpukit/libfs/src/jffs2/src%g' 00*
 }}}

 To support the first commit:
 {{{
 From e8bbeeb755a077cfc0f814b07739f9225642d65c Mon Sep 17 00:00:00 2001
 From: Cody P Schafer <cody at linux.vnet.ibm.com>
 Date: Thu, 23 Jan 2014 15:56:11 -0800
 Subject: [PATCH 01/24] fs/jffs2: use rbtree postorder iteration helper
 instead
  of opencoding

 Use rbtree_postorder_for_each_entry_safe() to destroy the rbtree instead
 of opencoding an alternate postorder iteration that modifies the tree

 Signed-off-by: Cody P Schafer <cody at linux.vnet.ibm.com>
 Cc: Michel Lespinasse <walken at google.com>
 Cc: Jan Kara <jack at suse.cz>
 Cc: David Woodhouse <dwmw2 at infradead.org>
 Signed-off-by: Andrew Morton <akpm at linux-foundation.org>
 Signed-off-by: Linus Torvalds <torvalds at linux-foundation.org>
 }}}
 we have to a postorder iterator to the red-black tree support code.

 The remaining 23 patches are easy to apply.

--
Ticket URL: <http://devel.rtems.org/ticket/3465>
RTEMS Project <http://www.rtems.org/>
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