[JFFS2] Introduce jffs2_scan_dirty_space() function.
To eliminate the __totlen field from struct jffs2_raw_node_ref, we need
to allocate nodes for dirty space instead of just tweaking the accounting
data. Introduce jffs2_scan_dirty_space() in preparation for that.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
diff --git a/fs/jffs2/summary.c b/fs/jffs2/summary.c
index 9ced3aa..11ea54c 100644
--- a/fs/jffs2/summary.c
+++ b/fs/jffs2/summary.c
@@ -380,6 +380,7 @@
struct jffs2_full_dirent *fd;
void *sp;
int i, ino;
+ int err;
sp = summary->sum;
@@ -494,7 +495,8 @@
jffs2_free_raw_node_ref(raw);
if (PTR_ERR(xd) == -EEXIST) {
/* a newer version of xd exists */
- DIRTY_SPACE(je32_to_cpu(spx->totlen));
+ if ((err = jffs2_scan_dirty_space(c, jeb, je32_to_cpu(spx->totlen))))
+ return err;
sp += JFFS2_SUMMARY_XATTR_SIZE;
break;
}
@@ -585,6 +587,7 @@
struct jffs2_raw_node_ref *cache_ref;
int ret, ofs;
uint32_t crc;
+ int err;
ofs = jeb->offset + c->sector_size - sumsize;
@@ -629,11 +632,13 @@
if (je32_to_cpu(summary->cln_mkr) != c->cleanmarker_size) {
dbg_summary("CLEANMARKER node has totlen 0x%x != normal 0x%x\n",
je32_to_cpu(summary->cln_mkr), c->cleanmarker_size);
- DIRTY_SPACE(PAD(je32_to_cpu(summary->cln_mkr)));
+ if ((err = jffs2_scan_dirty_space(c, jeb, PAD(je32_to_cpu(summary->cln_mkr)))))
+ return err;
} else if (jeb->first_node) {
dbg_summary("CLEANMARKER node not first node in block "
"(0x%08x)\n", jeb->offset);
- DIRTY_SPACE(PAD(je32_to_cpu(summary->cln_mkr)));
+ if ((err = jffs2_scan_dirty_space(c, jeb, PAD(je32_to_cpu(summary->cln_mkr)))))
+ return err;
} else {
struct jffs2_raw_node_ref *marker_ref = jffs2_alloc_raw_node_ref();
@@ -650,7 +655,8 @@
}
if (je32_to_cpu(summary->padded)) {
- DIRTY_SPACE(je32_to_cpu(summary->padded));
+ if ((err = jffs2_scan_dirty_space(c, jeb, je32_to_cpu(summary->padded))))
+ return err;
}
ret = jffs2_sum_process_sum_data(c, jeb, summary, pseudo_random);
@@ -823,7 +829,7 @@
infosize, jeb->offset + c->sector_size - jeb->free_size, ret, retlen);
c->summary->sum_size = JFFS2_SUMMARY_NOSUM_SIZE;
- DIRTY_SPACE(infosize);
+ jffs2_scan_dirty_space(c, jeb, infosize);
return 1;
}