kernel/3.3: remove yaffs support

[openwrt/svn-archive/archive.git] / target / linux / generic / patches-3.3 / 502-yaffs-Switch-from-semaphores-to-mutexes.patch

diff --git a/target/linux/generic/patches-3.3/502-yaffs-Switch-from-semaphores-to-mutexes.patch b/target/linux/generic/patches-3.3/502-yaffs-Switch-from-semaphores-to-mutexes.patch
deleted file mode 100644 (file)
index 8d1872e..0000000
--- a/target/linux/generic/patches-3.3/502-yaffs-Switch-from-semaphores-to-mutexes.patch
+++ /dev/null
@@ -1,138 +0,0 @@
-From c0c289363e84c53b5872f7c0c5069045096dca07 Mon Sep 17 00:00:00 2001
-From: Charles Manning <cdhmanning@gmail.com>
-Date: Wed, 3 Nov 2010 16:01:12 +1300
-Subject: [PATCH] yaffs: Switch from semaphores to mutexes
-
-commit 73c54aa8c1de3f61a4c211cd47431293a6092f18 upstream.
-
-Mutex is faster and init_MUTEX has been deprecated, so we'll just switch
-to mutexes.
-
-Signed-off-by: Charles Manning <cdhmanning@gmail.com>
----
- yaffs_linux.h     |    2 +-
- yaffs_vfs.c       |   24 ++++++++++++------------
- yaffs_vfs_multi.c |   26 +++++++++++++-------------
- 3 files changed, 26 insertions(+), 26 deletions(-)
-
---- a/fs/yaffs2/yaffs_linux.h
-+++ b/fs/yaffs2/yaffs_linux.h
-@@ -25,7 +25,7 @@ struct yaffs_LinuxContext {
-       struct super_block * superBlock;
-       struct task_struct *bgThread; /* Background thread for this device */
-       int bgRunning;
--        struct semaphore grossLock;     /* Gross locking semaphore */
-+      struct mutex grossLock; /* Gross locking mutex*/
-       __u8 *spareBuffer;      /* For mtdif2 use. Don't know the size of the buffer
-                                * at compile time so we have to allocate it.
-                                */
---- a/fs/yaffs2/yaffs_vfs_glue.c
-+++ b/fs/yaffs2/yaffs_vfs_glue.c
-@@ -515,14 +515,14 @@ static unsigned yaffs_gc_control_callbac
- static void yaffs_gross_lock(yaffs_dev_t *dev)
- {
-       T(YAFFS_TRACE_LOCK, (TSTR("yaffs locking %p\n"), current));
--      down(&(yaffs_dev_to_lc(dev)->grossLock));
-+      mutex_lock(&(yaffs_dev_to_lc(dev)->grossLock));
-       T(YAFFS_TRACE_LOCK, (TSTR("yaffs locked %p\n"), current));
- }
- 
- static void yaffs_gross_unlock(yaffs_dev_t *dev)
- {
-       T(YAFFS_TRACE_LOCK, (TSTR("yaffs unlocking %p\n"), current));
--      up(&(yaffs_dev_to_lc(dev)->grossLock));
-+      mutex_unlock(&(yaffs_dev_to_lc(dev)->grossLock));
- }
- 
- #ifdef YAFFS_COMPILE_EXPORTFS
-@@ -2542,7 +2542,7 @@ static void yaffs_read_inode(struct inod
- #endif
- 
- static YLIST_HEAD(yaffs_context_list);
--struct semaphore yaffs_context_lock;
-+struct mutex yaffs_context_lock;
- 
- static void yaffs_put_super(struct super_block *sb)
- {
-@@ -2568,9 +2568,9 @@ static void yaffs_put_super(struct super
- 
-       yaffs_gross_unlock(dev);
- 
--      down(&yaffs_context_lock);
-+      mutex_lock(&yaffs_context_lock);
-       ylist_del_init(&(yaffs_dev_to_lc(dev)->contextList));
--      up(&yaffs_context_lock);
-+      mutex_unlock(&yaffs_context_lock);
- 
-       if (yaffs_dev_to_lc(dev)->spareBuffer) {
-               YFREE(yaffs_dev_to_lc(dev)->spareBuffer);
-@@ -3016,7 +3016,7 @@ static struct super_block *yaffs_interna
-       param->skip_checkpt_rd = options.skip_checkpoint_read;
-       param->skip_checkpt_wr = options.skip_checkpoint_write;
- 
--      down(&yaffs_context_lock);
-+      mutex_lock(&yaffs_context_lock);
-       /* Get a mount id */
-       found = 0;
-       for(mount_id=0; ! found; mount_id++){
-@@ -3030,13 +3030,13 @@ static struct super_block *yaffs_interna
-       context->mount_id = mount_id;
- 
-       ylist_add_tail(&(yaffs_dev_to_lc(dev)->contextList), &yaffs_context_list);
--      up(&yaffs_context_lock);
-+      mutex_unlock(&yaffs_context_lock);
- 
-         /* Directory search handling...*/
-         YINIT_LIST_HEAD(&(yaffs_dev_to_lc(dev)->searchContexts));
-         param->remove_obj_fn = yaffs_remove_obj_callback;
- 
--      init_MUTEX(&(yaffs_dev_to_lc(dev)->grossLock));
-+      mutex_init(&(yaffs_dev_to_lc(dev)->grossLock));
- 
-       yaffs_gross_lock(dev);
- 
-@@ -3268,7 +3268,7 @@ static int yaffs_proc_read(char *page,
-       else {
-               step-=2;
-               
--              down(&yaffs_context_lock);
-+              mutex_lock(&yaffs_context_lock);
- 
-               /* Locate and print the Nth entry.  Order N-squared but N is small. */
-               ylist_for_each(item, &yaffs_context_list) {
-@@ -3287,7 +3287,7 @@ static int yaffs_proc_read(char *page,
-                       
-                       break;
-               }
--              up(&yaffs_context_lock);
-+              mutex_unlock(&yaffs_context_lock);
-       }
- 
-       return buf - page < count ? buf - page : count;
-@@ -3301,7 +3301,7 @@ static int yaffs_stats_proc_read(char *p
-       char *buf = page;
-       int n = 0;
- 
--      down(&yaffs_context_lock);
-+      mutex_lock(&yaffs_context_lock);
- 
-       /* Locate and print the Nth entry.  Order N-squared but N is small. */
-       ylist_for_each(item, &yaffs_context_list) {
-@@ -3317,7 +3317,7 @@ static int yaffs_stats_proc_read(char *p
-                               dev->bg_gcs, dev->oldest_dirty_gc_count,
-                               dev->n_obj, dev->n_tnodes);
-       }
--      up(&yaffs_context_lock);
-+      mutex_unlock(&yaffs_context_lock);
- 
- 
-       return buf - page < count ? buf - page : count;
-@@ -3494,7 +3494,7 @@ static int __init init_yaffs_fs(void)
- 
- 
- 
--      init_MUTEX(&yaffs_context_lock);
-+      mutex_init(&yaffs_context_lock);
- 
-       /* Install the proc_fs entries */
-       my_proc_entry = create_proc_entry("yaffs",