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| author | David Woodhouse <David.Woodhouse@intel.com> | 2010-05-19 18:00:10 +0200 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2010-05-19 18:10:22 +0200 |
| commit | acb64a43e4503fbea9faf123f2403da7af8831eb (patch) | |
| tree | 862d5ad6530b7c8671bda96a1bd1d07179f0b7c9 /fs/jffs2 | |
| parent | jffs2: Wake GC thread when there are blocks to be erased (diff) | |
| download | linux-acb64a43e4503fbea9faf123f2403da7af8831eb.tar.xz linux-acb64a43e4503fbea9faf123f2403da7af8831eb.zip | |
jffs2: Require jffs2_garbage_collect_trigger() to be called with lock held
We're about to call this from a bunch of places which already hold
c->erase_completion_lock, so add an assertion and change its existing
callers to do the same.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'fs/jffs2')
| -rw-r--r-- | fs/jffs2/background.c | 3 | ||||
| -rw-r--r-- | fs/jffs2/nodemgmt.c | 2 | ||||
| -rw-r--r-- | fs/jffs2/super.c | 2 |
3 files changed, 5 insertions, 2 deletions
diff --git a/fs/jffs2/background.c b/fs/jffs2/background.c index 3ff50da94789..55f1dde2fa8b 100644 --- a/fs/jffs2/background.c +++ b/fs/jffs2/background.c @@ -23,10 +23,9 @@ static int jffs2_garbage_collect_thread(void *); void jffs2_garbage_collect_trigger(struct jffs2_sb_info *c) { - spin_lock(&c->erase_completion_lock); + assert_spin_locked(&c->erase_completion_lock); if (c->gc_task && jffs2_thread_should_wake(c)) send_sig(SIGHUP, c->gc_task, 1); - spin_unlock(&c->erase_completion_lock); } /* This must only ever be called when no GC thread is currently running */ diff --git a/fs/jffs2/nodemgmt.c b/fs/jffs2/nodemgmt.c index 5ab5c8521cdf..dd2d920d3325 100644 --- a/fs/jffs2/nodemgmt.c +++ b/fs/jffs2/nodemgmt.c @@ -481,7 +481,9 @@ struct jffs2_raw_node_ref *jffs2_add_physical_node_ref(struct jffs2_sb_info *c, void jffs2_complete_reservation(struct jffs2_sb_info *c) { D1(printk(KERN_DEBUG "jffs2_complete_reservation()\n")); + spin_lock(&c->erase_completion_lock); jffs2_garbage_collect_trigger(c); + spin_unlock(&c->erase_completion_lock); mutex_unlock(&c->alloc_sem); } diff --git a/fs/jffs2/super.c b/fs/jffs2/super.c index 9a80e8e595d0..12cc967c5c03 100644 --- a/fs/jffs2/super.c +++ b/fs/jffs2/super.c @@ -63,7 +63,9 @@ static void jffs2_write_super(struct super_block *sb) if (!(sb->s_flags & MS_RDONLY)) { D1(printk(KERN_DEBUG "jffs2_write_super()\n")); + spin_lock(&c->erase_completion_lock); jffs2_garbage_collect_trigger(c); + spin_unlock(&c->erase_completion_lock); jffs2_erase_pending_blocks(c, 0); jffs2_flush_wbuf_gc(c, 0); } |