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authorDavid Woodhouse <dwmw2@infradead.org>2006-05-21 04:46:05 +0200
committerDavid Woodhouse <dwmw2@infradead.org>2006-05-21 04:46:05 +0200
commit68270995f29f1a82b3eaab01df63ea7e721e2fa6 (patch)
tree44388152f209c9f8f0df8eec33efaaca7817ec6d /fs/jffs2/summary.c
parent[JFFS2] Fix summary handling of unknown but compatible nodes. (diff)
downloadlinux-68270995f29f1a82b3eaab01df63ea7e721e2fa6.tar.xz
linux-68270995f29f1a82b3eaab01df63ea7e721e2fa6.zip
[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>
Diffstat (limited to 'fs/jffs2/summary.c')
-rw-r--r--fs/jffs2/summary.c16
1 files changed, 11 insertions, 5 deletions
diff --git a/fs/jffs2/summary.c b/fs/jffs2/summary.c
index 9ced3aa95818..11ea54c90f44 100644
--- a/fs/jffs2/summary.c
+++ b/fs/jffs2/summary.c
@@ -380,6 +380,7 @@ static int jffs2_sum_process_sum_data(struct jffs2_sb_info *c, struct jffs2_eras
struct jffs2_full_dirent *fd;
void *sp;
int i, ino;
+ int err;
sp = summary->sum;
@@ -494,7 +495,8 @@ static int jffs2_sum_process_sum_data(struct jffs2_sb_info *c, struct jffs2_eras
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 @@ int jffs2_sum_scan_sumnode(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb
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 @@ int jffs2_sum_scan_sumnode(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb
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 @@ int jffs2_sum_scan_sumnode(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb
}
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 @@ static int jffs2_sum_write_data(struct jffs2_sb_info *c, struct jffs2_eraseblock
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;
}