diff options
| author | David Woodhouse <dwmw2@infradead.org> | 2007-06-29 14:39:57 +0200 |
|---|---|---|
| committer | David Woodhouse <dwmw2@infradead.org> | 2007-08-02 22:39:50 +0200 |
| commit | 71c23397752c0e40722d931ab9152342e9673336 (patch) | |
| tree | b6bc0e6b37b815c9f054b5184c8d1b8ec72208ce | |
| parent | [JFFS2] Prevent oops after 'node added in wrong place' debug check (diff) | |
| download | linux-71c23397752c0e40722d931ab9152342e9673336.tar.xz linux-71c23397752c0e40722d931ab9152342e9673336.zip | |
[JFFS2] Deletion dirents should be REF_NORMAL, not REF_PRISTINE.
Otherwise they'll never actually get garbage-collected.
Noted by Jonathan Larmour.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
| -rw-r--r-- | fs/jffs2/nodelist.h | 5 | ||||
| -rw-r--r-- | fs/jffs2/readinode.c | 2 | ||||
| -rw-r--r-- | fs/jffs2/scan.c | 3 | ||||
| -rw-r--r-- | fs/jffs2/write.c | 3 |
4 files changed, 10 insertions, 3 deletions
diff --git a/fs/jffs2/nodelist.h b/fs/jffs2/nodelist.h index 25126a062cae..bc5509fe577b 100644 --- a/fs/jffs2/nodelist.h +++ b/fs/jffs2/nodelist.h @@ -139,6 +139,11 @@ static inline struct jffs2_inode_cache *jffs2_raw_ref_to_ic(struct jffs2_raw_nod #define ref_obsolete(ref) (((ref)->flash_offset & 3) == REF_OBSOLETE) #define mark_ref_normal(ref) do { (ref)->flash_offset = ref_offset(ref) | REF_NORMAL; } while(0) +/* Dirent nodes should be REF_PRISTINE only if they are not a deletion + dirent. Deletion dirents should be REF_NORMAL so that GC gets to + throw them away when appropriate */ +#define dirent_node_state(rd) ( (je32_to_cpu((rd)->ino)?REF_PRISTINE:REF_NORMAL) ) + /* NB: REF_PRISTINE for an inode-less node (ref->next_in_ino == NULL) indicates it is an unknown node of type JFFS2_NODETYPE_RWCOMPAT_COPY, so it'll get copied. If you need to do anything different to GC inode-less nodes, then diff --git a/fs/jffs2/readinode.c b/fs/jffs2/readinode.c index 7b363786c2d2..170da20b97c7 100644 --- a/fs/jffs2/readinode.c +++ b/fs/jffs2/readinode.c @@ -613,7 +613,7 @@ static inline int read_direntry(struct jffs2_sb_info *c, struct jffs2_raw_node_r jeb->unchecked_size -= len; c->used_size += len; c->unchecked_size -= len; - ref->flash_offset = ref_offset(ref) | REF_PRISTINE; + ref->flash_offset = ref_offset(ref) | dirent_node_state(rd); spin_unlock(&c->erase_completion_lock); } diff --git a/fs/jffs2/scan.c b/fs/jffs2/scan.c index 2a1c976c7924..6c75cd433342 100644 --- a/fs/jffs2/scan.c +++ b/fs/jffs2/scan.c @@ -1049,7 +1049,8 @@ static int jffs2_scan_dirent_node(struct jffs2_sb_info *c, struct jffs2_eraseblo return -ENOMEM; } - fd->raw = jffs2_link_node_ref(c, jeb, ofs | REF_PRISTINE, PAD(je32_to_cpu(rd->totlen)), ic); + fd->raw = jffs2_link_node_ref(c, jeb, ofs | dirent_node_state(rd), + PAD(je32_to_cpu(rd->totlen)), ic); fd->next = NULL; fd->version = je32_to_cpu(rd->version); diff --git a/fs/jffs2/write.c b/fs/jffs2/write.c index 1406f2ce20a7..bc6185933664 100644 --- a/fs/jffs2/write.c +++ b/fs/jffs2/write.c @@ -296,7 +296,8 @@ struct jffs2_full_dirent *jffs2_write_dirent(struct jffs2_sb_info *c, struct jff return ERR_PTR(ret?ret:-EIO); } /* Mark the space used */ - fd->raw = jffs2_add_physical_node_ref(c, flash_ofs | REF_PRISTINE, PAD(sizeof(*rd)+namelen), f->inocache); + fd->raw = jffs2_add_physical_node_ref(c, flash_ofs | dirent_node_state(rd), + PAD(sizeof(*rd)+namelen), f->inocache); if (IS_ERR(fd->raw)) { void *hold_err = fd->raw; /* Release the full_dirent which is now useless, and return */ |