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authorKaiGai Kohei <kaigai@ak.jp.nec.com>2006-06-10 21:35:15 -0400
committerDavid Woodhouse <dwmw2@infradead.org>2006-06-27 11:16:26 -0400
commitc9f700f840bd481b3e01fcad1ba8da01794a6726 (patch)
tree786f4a6a3f3a2d619ae4230a62f95361fcd3245a /fs/jffs2/nodemgmt.c
parent6d4f8224d4ee065e0e3186cc554468d735e6015d (diff)
[JFFS2][XATTR] using 'delete marker' for xdatum/xref deletion
- When xdatum is removed, a new xdatum with 'delete marker' is written. (version==0xffffffff means 'delete marker') - When xref is removed, a new xref with 'delete marker' is written. (odd-numbered xseqno means 'delete marker') - delete_xattr_(datum/xref)_delay() are new deletion functions are added. We can only use them if we can detect the target obsolete xdatum/xref as a orphan or errir one. (e.g when inode deletion, or detecting crc error) [1/3] jffs2-xattr-v6-01-delete_marker.patch Signed-off-by: KaiGai Kohei <kaigai@ak.jp.nec.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Diffstat (limited to 'fs/jffs2/nodemgmt.c')
-rw-r--r--fs/jffs2/nodemgmt.c21
1 files changed, 14 insertions, 7 deletions
diff --git a/fs/jffs2/nodemgmt.c b/fs/jffs2/nodemgmt.c
index 8bedfd2ff689..01594a2256eb 100644
--- a/fs/jffs2/nodemgmt.c
+++ b/fs/jffs2/nodemgmt.c
@@ -684,19 +684,26 @@ void jffs2_mark_node_obsolete(struct jffs2_sb_info *c, struct jffs2_raw_node_ref
684 spin_lock(&c->erase_completion_lock); 684 spin_lock(&c->erase_completion_lock);
685 685
686 ic = jffs2_raw_ref_to_ic(ref); 686 ic = jffs2_raw_ref_to_ic(ref);
687 /* It seems we should never call jffs2_mark_node_obsolete() for
688 XATTR nodes.... yet. Make sure we notice if/when we change
689 that :) */
690 BUG_ON(ic->class != RAWNODE_CLASS_INODE_CACHE);
691 for (p = &ic->nodes; (*p) != ref; p = &((*p)->next_in_ino)) 687 for (p = &ic->nodes; (*p) != ref; p = &((*p)->next_in_ino))
692 ; 688 ;
693 689
694 *p = ref->next_in_ino; 690 *p = ref->next_in_ino;
695 ref->next_in_ino = NULL; 691 ref->next_in_ino = NULL;
696 692
697 if (ic->nodes == (void *)ic && ic->nlink == 0) 693 switch (ic->class) {
698 jffs2_del_ino_cache(c, ic); 694#ifdef CONFIG_JFFS2_FS_XATTR
699 695 case RAWNODE_CLASS_XATTR_DATUM:
696 jffs2_release_xattr_datum(c, (struct jffs2_xattr_datum *)ic);
697 break;
698 case RAWNODE_CLASS_XATTR_REF:
699 jffs2_release_xattr_ref(c, (struct jffs2_xattr_ref *)ic);
700 break;
701#endif
702 default:
703 if (ic->nodes == (void *)ic && ic->nlink == 0)
704 jffs2_del_ino_cache(c, ic);
705 break;
706 }
700 spin_unlock(&c->erase_completion_lock); 707 spin_unlock(&c->erase_completion_lock);
701 } 708 }
702 709