diff options
Diffstat (limited to 'target/linux/generic/patches-3.8/502-yaffs-Switch-from-semaphores-to-mutexes.patch')
| -rw-r--r-- | target/linux/generic/patches-3.8/502-yaffs-Switch-from-semaphores-to-mutexes.patch | 138 |
1 files changed, 0 insertions, 138 deletions
diff --git a/target/linux/generic/patches-3.8/502-yaffs-Switch-from-semaphores-to-mutexes.patch b/target/linux/generic/patches-3.8/502-yaffs-Switch-from-semaphores-to-mutexes.patch deleted file mode 100644 index 8d1872e..0000000 --- a/target/linux/generic/patches-3.8/502-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", |