diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/jffs2/nodemgmt.c | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/fs/jffs2/nodemgmt.c b/fs/jffs2/nodemgmt.c index 71d1630609a5..8bedfd2ff689 100644 --- a/fs/jffs2/nodemgmt.c +++ b/fs/jffs2/nodemgmt.c @@ -317,6 +317,8 @@ static int jffs2_do_reserve_space(struct jffs2_sb_info *c, uint32_t minsize, } } else { if (jeb && minsize > jeb->free_size) { + uint32_t waste; + /* Skip the end of this block and file it as having some dirty space */ /* If there's a pending write to it, flush now */ @@ -329,10 +331,26 @@ static int jffs2_do_reserve_space(struct jffs2_sb_info *c, uint32_t minsize, goto restart; } - c->wasted_size += jeb->free_size; - c->free_size -= jeb->free_size; - jeb->wasted_size += jeb->free_size; - jeb->free_size = 0; + spin_unlock(&c->erase_completion_lock); + + ret = jffs2_prealloc_raw_node_refs(c, jeb, 1); + if (ret) + return ret; + /* Just lock it again and continue. Nothing much can change because + we hold c->alloc_sem anyway. In fact, it's not entirely clear why + we hold c->erase_completion_lock in the majority of this function... + but that's a question for another (more caffeine-rich) day. */ + spin_lock(&c->erase_completion_lock); + + waste = jeb->free_size; + jffs2_link_node_ref(c, jeb, + (jeb->offset + c->sector_size - waste) | REF_OBSOLETE, + waste, NULL); + /* FIXME: that made it count as dirty. Convert to wasted */ + jeb->dirty_size -= waste; + c->dirty_size -= waste; + jeb->wasted_size += waste; + c->wasted_size += waste; jffs2_close_nextblock(c, jeb); jeb = NULL; |