1 files changed, 13 insertions, 11 deletions

diff --git a/fs/jffs2/nodemgmt.c b/fs/jffs2/nodemgmt.c
index a0313fa8748e..9df8f3ef20df 100644
--- a/fs/jffs2/nodemgmt.c
+++ b/fs/jffs2/nodemgmt.c
@@ -48,7 +48,7 @@ int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
         minsize = PAD(minsize);
 
         D1(printk(KERN_DEBUG "jffs2_reserve_space(): Requested 0x%x bytes\n", minsize));
-        down(&c->alloc_sem);
+        mutex_lock(&c->alloc_sem);
 
         D1(printk(KERN_DEBUG "jffs2_reserve_space(): alloc sem got\n"));
 
@@ -57,7 +57,6 @@ int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
         /* this needs a little more thought (true <tglx> :)) */
         while(ret == -EAGAIN) {
                 while(c->nr_free_blocks + c->nr_erasing_blocks < blocksneeded) {
-                        int ret;
                         uint32_t dirty, avail;
 
                         /* calculate real dirty size
@@ -82,7 +81,7 @@ int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
                                           dirty, c->unchecked_size, c->sector_size));
 
                                 spin_unlock(&c->erase_completion_lock);
-                                up(&c->alloc_sem);
+                                mutex_unlock(&c->alloc_sem);
                                 return -ENOSPC;
                         }
 
@@ -105,11 +104,11 @@ int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
                                 D1(printk(KERN_DEBUG "max. available size 0x%08x  < blocksneeded * sector_size 0x%08x, returning -ENOSPC\n",
                                           avail, blocksneeded * c->sector_size));
                                 spin_unlock(&c->erase_completion_lock);
-                                up(&c->alloc_sem);
+                                mutex_unlock(&c->alloc_sem);
                                 return -ENOSPC;
                         }
 
-                        up(&c->alloc_sem);
+                        mutex_unlock(&c->alloc_sem);
 
                         D1(printk(KERN_DEBUG "Triggering GC pass. nr_free_blocks %d, nr_erasing_blocks %d, free_size 0x%08x, dirty_size 0x%08x, wasted_size 0x%08x, used_size 0x%08x, erasing_size 0x%08x, bad_size 0x%08x (total 0x%08x of 0x%08x)\n",
                                   c->nr_free_blocks, c->nr_erasing_blocks, c->free_size, c->dirty_size, c->wasted_size, c->used_size, c->erasing_size, c->bad_size,
@@ -117,7 +116,10 @@ int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
                         spin_unlock(&c->erase_completion_lock);
 
                         ret = jffs2_garbage_collect_pass(c);
-                        if (ret)
+
+                        if (ret == -EAGAIN)
+                                jffs2_erase_pending_blocks(c, 1);
+                        else if (ret)
                                 return ret;
 
                         cond_resched();
@@ -125,7 +127,7 @@ int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
                         if (signal_pending(current))
                                 return -EINTR;
 
-                        down(&c->alloc_sem);
+                        mutex_lock(&c->alloc_sem);
                         spin_lock(&c->erase_completion_lock);
                 }
 
@@ -138,7 +140,7 @@ int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
         if (!ret)
                 ret = jffs2_prealloc_raw_node_refs(c, c->nextblock, 1);
         if (ret)
-                up(&c->alloc_sem);
+                mutex_unlock(&c->alloc_sem);
         return ret;
 }
 
@@ -463,7 +465,7 @@ void jffs2_complete_reservation(struct jffs2_sb_info *c)
 {
         D1(printk(KERN_DEBUG "jffs2_complete_reservation()\n"));
         jffs2_garbage_collect_trigger(c);
-        up(&c->alloc_sem);
+        mutex_unlock(&c->alloc_sem);
 }
 
 static inline int on_list(struct list_head *obj, struct list_head *head)
@@ -512,7 +514,7 @@ void jffs2_mark_node_obsolete(struct jffs2_sb_info *c, struct jffs2_raw_node_ref
                    any jffs2_raw_node_refs. So we don't need to stop erases from
                    happening, or protect against people holding an obsolete
                    jffs2_raw_node_ref without the erase_completion_lock. */
-                down(&c->erase_free_sem);
+                mutex_lock(&c->erase_free_sem);
         }
 
         spin_lock(&c->erase_completion_lock);
@@ -715,7 +717,7 @@ void jffs2_mark_node_obsolete(struct jffs2_sb_info *c, struct jffs2_raw_node_ref
         }
 
  out_erase_sem:
-        up(&c->erase_free_sem);
+        mutex_unlock(&c->erase_free_sem);
 }
 
 int jffs2_thread_should_wake(struct jffs2_sb_info *c)