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--- a/fs/yaffs2/yaffs_vfs_glue.c
+++ b/fs/yaffs2/yaffs_vfs_glue.c
@@ -394,6 +394,84 @@ static void yaffs_touch_super(yaffs_dev_
static int yaffs_vfs_setattr(struct inode *, struct iattr *);
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 6, 0))
+
+#define yaffs_super_to_dev(sb) ((struct yaffs_dev_s *)sb->s_fs_info)
+
+static inline struct yaffs_LinuxContext *
+yaffs_sb_to_ylc(struct super_block *sb)
+{
+ struct yaffs_dev_s *ydev;
+ struct yaffs_LinuxContext *ylc;
+
+ ydev = yaffs_super_to_dev(sb);
+ ylc = yaffs_dev_to_lc(ydev);
+ return ylc;
+}
+
+static inline struct super_block *yaffs_work_to_sb(struct work_struct *work)
+{
+ struct delayed_work *dwork;
+ struct yaffs_LinuxContext *ylc;
+
+ dwork = container_of(work, struct delayed_work, work);
+ ylc = container_of(dwork, struct yaffs_LinuxContext, sb_sync_dwork);
+ return ylc->superBlock;
+}
+
+static void yaffs_sb_sync_dwork_func(struct work_struct *work)
+{
+ struct super_block *sb = yaffs_work_to_sb(work);
+
+ yaffs_write_super(sb);
+}
+
+static void yaffs_init_sb_sync_dwork(struct yaffs_LinuxContext *ylc)
+{
+ INIT_DELAYED_WORK(&ylc->sb_sync_dwork, yaffs_sb_sync_dwork_func);
+}
+
+static void yaffs_cancel_sb_sync_dwork(struct super_block *sb)
+{
+ struct yaffs_LinuxContext *ylc = yaffs_sb_to_ylc(sb);
+
+ cancel_delayed_work_sync(&ylc->sb_sync_dwork);
+}
+
+static inline bool yaffs_sb_is_dirty(struct super_block *sb)
+{
+ struct yaffs_LinuxContext *ylc = yaffs_sb_to_ylc(sb);
+
+ return !!ylc->sb_dirty;
+}
+
+static inline void yaffs_sb_set_dirty(struct super_block *sb, int dirty)
+{
+ struct yaffs_LinuxContext *ylc = yaffs_sb_to_ylc(sb);
+
+ if (ylc->sb_dirty == dirty)
+ return;
+
+ ylc->sb_dirty = dirty;
+ if (dirty)
+ queue_delayed_work(system_long_wq, &ylc->sb_sync_dwork,
+ msecs_to_jiffies(5000));
+}
+#else
+static inline bool yaffs_sb_is_dirty(struct super_block *sb)
+{
+ return !!sb->s_dirt;
+}
+
+static inline void yaffs_sb_set_dirty(struct super_block *sb, int dirty)
+{
+ sb->s_dirt = dirty;
+}
+
+static inline void yaffs_init_sb_sync_dwork(struct yaffs_LinuxContext *ylc) {}
+static inline void yaffs_cancel_sb_sync_dwork(struct super_block *sb) {}
+#endif /* >= 3.6.0 */
+
static struct address_space_operations yaffs_file_address_operations = {
.readpage = yaffs_readpage,
.writepage = yaffs_writepage,
@@ -527,7 +605,9 @@ static const struct super_operations yaf
.clear_inode = yaffs_clear_inode,
#endif
.sync_fs = yaffs_sync_fs,
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 6, 0))
.write_super = yaffs_write_super,
+#endif
};
@@ -2314,7 +2394,7 @@ static int yaffs_do_sync_fs(struct super
T(YAFFS_TRACE_OS | YAFFS_TRACE_SYNC | YAFFS_TRACE_BACKGROUND,
(TSTR("yaffs_do_sync_fs: gc-urgency %d %s %s%s\n"),
gc_urgent,
- sb->s_dirt ? "dirty" : "clean",
+ yaffs_sb_is_dirty(sb) ? "dirty" : "clean",
request_checkpoint ? "checkpoint requested" : "no checkpoint",
oneshot_checkpoint ? " one-shot" : "" ));
@@ -2323,9 +2403,9 @@ static int yaffs_do_sync_fs(struct super
oneshot_checkpoint) &&
!dev->is_checkpointed;
- if (sb->s_dirt || do_checkpoint) {
+ if (yaffs_sb_is_dirty(sb) || do_checkpoint) {
yaffs_flush_super(sb, !dev->is_checkpointed && do_checkpoint);
- sb->s_dirt = 0;
+ yaffs_sb_set_dirty(sb, 0);
if(oneshot_checkpoint)
yaffs_auto_checkpoint &= ~4;
}
@@ -2601,6 +2681,8 @@ static void yaffs_put_super(struct super
yaffs_flush_super(sb,1);
+ yaffs_cancel_sb_sync_dwork(sb);
+
if (yaffs_dev_to_lc(dev)->putSuperFunc)
yaffs_dev_to_lc(dev)->putSuperFunc(sb);
@@ -2639,7 +2721,7 @@ static void yaffs_touch_super(yaffs_dev_
T(YAFFS_TRACE_OS, (TSTR("yaffs_touch_super() sb = %p\n"), sb));
if (sb)
- sb->s_dirt = 1;
+ yaffs_sb_set_dirty(sb, 1);
}
typedef struct {
@@ -2965,6 +3047,8 @@ static struct super_block *yaffs_interna
context->dev = dev;
context->superBlock = sb;
+ yaffs_init_sb_sync_dwork(context);
+
dev->read_only = read_only;
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
@@ -3151,7 +3235,7 @@ static struct super_block *yaffs_interna
return NULL;
}
sb->s_root = root;
- sb->s_dirt = !dev->is_checkpointed;
+ yaffs_sb_set_dirty(sb, !dev->is_checkpointed);
T(YAFFS_TRACE_ALWAYS,
(TSTR("yaffs_read_super: is_checkpointed %d\n"),
dev->is_checkpointed));
--- a/fs/yaffs2/yaffs_linux.h
+++ b/fs/yaffs2/yaffs_linux.h
@@ -34,6 +34,11 @@ struct yaffs_LinuxContext {
struct task_struct *readdirProcess;
unsigned mount_id;
+
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 6, 0))
+ struct delayed_work sb_sync_dwork; /* superblock write-out work */
+ int sb_dirty; /* superblock is dirty */
+#endif
};
#define yaffs_dev_to_lc(dev) ((struct yaffs_LinuxContext *)((dev)->os_context))
--- a/fs/yaffs2/yportenv.h
+++ b/fs/yaffs2/yportenv.h
@@ -49,6 +49,9 @@
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/xattr.h>
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 6, 0))
+#include <linux/workqueue.h>
+#endif
#define YCHAR char
#define YUCHAR unsigned char
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