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[JFFS2] Fix obsoletion of metadata nodes in jffs2_add_tn_to_tree() 

We should keep the mdata node with higher version number, not just the
one we happen to find latest. Doh.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
This commit is contained in:
David Woodhouse 2007-06-01 20:04:43 +01:00
parent 718ea8361b
commit 0477d24e2a
1 changed files with 10 additions and 3 deletions
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13
fs/jffs2/readinode.c
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@ -229,9 +229,16 @@ static int jffs2_add_tn_to_tree(struct jffs2_sb_info *c,
check anyway. */
if (!tn->fn->size) {
if (rii->mdata_tn) {
/* We had a candidate mdata node already */
dbg_readinode("kill old mdata with ver %d\n", rii->mdata_tn->version);
jffs2_kill_tn(c, rii->mdata_tn);
if (rii->mdata_tn->version < tn->version) {
/* We had a candidate mdata node already */
dbg_readinode("kill old mdata with ver %d\n", rii->mdata_tn->version);
jffs2_kill_tn(c, rii->mdata_tn);
} else {
dbg_readinode("kill new mdata with ver %d (older than existing %d\n",
tn->version, rii->mdata_tn->version);
jffs2_kill_tn(c, tn);
return 0;
}
}
rii->mdata_tn = tn;
dbg_readinode("keep new mdata with ver %d\n", tn->version);