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path: root/fs/jffs2/nodemgmt.c
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Diffstat (limited to 'fs/jffs2/nodemgmt.c')
-rw-r--r--fs/jffs2/nodemgmt.c24
1 files changed, 13 insertions, 11 deletions
diff --git a/fs/jffs2/nodemgmt.c b/fs/jffs2/nodemgmt.c
index a0313fa8748..9df8f3ef20d 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)