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| author | David Woodhouse <dwmw2@infradead.org> | 2006-05-21 13:29:11 +0100 |
|---|---|---|
| committer | David Woodhouse <dwmw2@infradead.org> | 2006-05-21 13:29:11 +0100 |
| commit | ca89a517fa577e6f26621463d3aa4f3c3d530b1e (patch) | |
| tree | e277f31d6629c5dcc358adfa80190fc247d43f65 /fs/jffs2/nodemgmt.c | |
| parent | 010b06d6d07d9fa5ea6070aa72bb3e0de1761ab7 (diff) | |
| download | blackbird-op-linux-ca89a517fa577e6f26621463d3aa4f3c3d530b1e.tar.gz blackbird-op-linux-ca89a517fa577e6f26621463d3aa4f3c3d530b1e.zip | |
[JFFS2] Finally eliminate __totlen field from struct jffs2_raw_node_ref
Well, almost. We'll actually keep a 'TEST_TOTLEN' macro set for now, and keep
doing some paranoia checks to make sure it's all working correctly. But if
TEST_TOTLEN is unset, the size of struct jffs2_raw_node_ref drops from 16
bytes to 12 on 32-bit machines. That's a saving of about half a megabyte of
memory on the OLPC prototype board, with 125K or so nodes in its 512MiB of
flash.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Diffstat (limited to 'fs/jffs2/nodemgmt.c')
| -rw-r--r-- | fs/jffs2/nodemgmt.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/jffs2/nodemgmt.c b/fs/jffs2/nodemgmt.c index 4701556be49d..9a0f312cfcda 100644 --- a/fs/jffs2/nodemgmt.c +++ b/fs/jffs2/nodemgmt.c @@ -386,7 +386,9 @@ int jffs2_add_physical_node_ref(struct jffs2_sb_info *c, struct jffs2_raw_node_r struct jffs2_eraseblock *jeb; jeb = &c->blocks[new->flash_offset / c->sector_size]; +#ifdef TEST_TOTLEN new->__totlen = len; +#endif D1(printk(KERN_DEBUG "jffs2_add_physical_node_ref(): Node at 0x%x(%d), size 0x%x\n", ref_offset(new), ref_flags(new), len)); #if 1 @@ -679,7 +681,9 @@ void jffs2_mark_node_obsolete(struct jffs2_sb_info *c, struct jffs2_raw_node_ref spin_lock(&c->erase_completion_lock); +#ifdef TEST_TOTLEN ref->__totlen += n->__totlen; +#endif ref->next_phys = n->next_phys; if (jeb->last_node == n) jeb->last_node = ref; if (jeb->gc_node == n) { @@ -702,7 +706,9 @@ void jffs2_mark_node_obsolete(struct jffs2_sb_info *c, struct jffs2_raw_node_ref p = p->next_phys; if (ref_obsolete(p) && !ref->next_in_ino) { +#ifdef TEST_TOTLEN p->__totlen += ref->__totlen; +#endif if (jeb->last_node == ref) { jeb->last_node = p; } |
