generic: make yaffs work on 3.6

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34054 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/target/linux/generic/patches-3.6/509-yaffs-3.4-add-underscore-to-mtd-internal-names.patch b/target/linux/generic/patches-3.6/509-yaffs-3.4-add-underscore-to-mtd-internal-names.patch
new file mode 100644 (file)
index 0000000..14f342d
--- /dev/null
+++ b/target/linux/generic/patches-3.6/509-yaffs-3.4-add-underscore-to-mtd-internal-names.patch
@@ -0,0 +1,72 @@
+--- a/fs/yaffs2/yaffs_vfs_glue.c
++++ b/fs/yaffs2/yaffs_vfs_glue.c
+@@ -2793,6 +2793,15 @@ static struct super_block *yaffs_interna
+               return NULL;
+       }
+ 
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 4, 0)
++      T(YAFFS_TRACE_OS, (TSTR(" erase %p\n"), mtd->_erase));
++      T(YAFFS_TRACE_OS, (TSTR(" read %p\n"), mtd->_read));
++      T(YAFFS_TRACE_OS, (TSTR(" write %p\n"), mtd->_write));
++      T(YAFFS_TRACE_OS, (TSTR(" readoob %p\n"), mtd->_read_oob));
++      T(YAFFS_TRACE_OS, (TSTR(" writeoob %p\n"), mtd->_write_oob));
++      T(YAFFS_TRACE_OS, (TSTR(" block_isbad %p\n"), mtd->_block_isbad));
++      T(YAFFS_TRACE_OS, (TSTR(" block_markbad %p\n"), mtd->_block_markbad));
++#else
+       T(YAFFS_TRACE_OS, (TSTR(" erase %p\n"), mtd->erase));
+       T(YAFFS_TRACE_OS, (TSTR(" read %p\n"), mtd->read));
+       T(YAFFS_TRACE_OS, (TSTR(" write %p\n"), mtd->write));
+@@ -2800,6 +2809,7 @@ static struct super_block *yaffs_interna
+       T(YAFFS_TRACE_OS, (TSTR(" writeoob %p\n"), mtd->write_oob));
+       T(YAFFS_TRACE_OS, (TSTR(" block_isbad %p\n"), mtd->block_isbad));
+       T(YAFFS_TRACE_OS, (TSTR(" block_markbad %p\n"), mtd->block_markbad));
++#endif
+       T(YAFFS_TRACE_OS, (TSTR(" %s %d\n"), WRITE_SIZE_STR, WRITE_SIZE(mtd)));
+       T(YAFFS_TRACE_OS, (TSTR(" oobsize %d\n"), mtd->oobsize));
+       T(YAFFS_TRACE_OS, (TSTR(" erasesize %d\n"), mtd->erasesize));
+@@ -2828,6 +2838,15 @@ static struct super_block *yaffs_interna
+ 
+       if (yaffs_version == 2) {
+               /* Check for version 2 style functions */
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 4, 0))
++              if (!mtd->_erase ||
++                  !mtd->_block_isbad ||
++                  !mtd->_block_markbad ||
++                  !mtd->_read ||
++                  !mtd->_write ||
++                  !mtd->_read_oob ||
++                  !mtd->_write_oob) {
++#else
+               if (!mtd->erase ||
+                   !mtd->block_isbad ||
+                   !mtd->block_markbad ||
+@@ -2839,6 +2858,7 @@ static struct super_block *yaffs_interna
+                   !mtd->write_ecc ||
+                   !mtd->read_ecc || !mtd->read_oob || !mtd->write_oob) {
+ #endif
++#endif
+                       T(YAFFS_TRACE_ALWAYS,
+                         (TSTR("yaffs: MTD device does not support required "
+                          "functions\n")));
+@@ -2855,6 +2875,13 @@ static struct super_block *yaffs_interna
+               }
+       } else {
+               /* Check for V1 style functions */
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 4, 0))
++              if (!mtd->_erase ||
++                  !mtd->_read ||
++                  !mtd->_write ||
++                  !mtd->_read_oob ||
++                  !mtd->_write_oob) {
++#else
+               if (!mtd->erase ||
+                   !mtd->read ||
+                   !mtd->write ||
+@@ -2864,6 +2891,7 @@ static struct super_block *yaffs_interna
+                   !mtd->write_ecc ||
+                   !mtd->read_ecc || !mtd->read_oob || !mtd->write_oob) {
+ #endif
++#endif
+                       T(YAFFS_TRACE_ALWAYS,
+                         (TSTR("yaffs: MTD device does not support required "
+                          "functions\n")));

diff --git a/target/linux/generic/patches-3.6/510-yaffs-3.4-use-d_make_root.patch b/target/linux/generic/patches-3.6/510-yaffs-3.4-use-d_make_root.patch
new file mode 100644 (file)
index 0000000..0ef59d6
--- /dev/null
+++ b/target/linux/generic/patches-3.6/510-yaffs-3.4-use-d_make_root.patch
@@ -0,0 +1,14 @@
+--- a/fs/yaffs2/yaffs_vfs_glue.c
++++ b/fs/yaffs2/yaffs_vfs_glue.c
+@@ -3119,7 +3119,11 @@ static struct super_block *yaffs_interna
+ 
+       T(YAFFS_TRACE_OS, (TSTR("yaffs_read_super: got root inode\n")));
+ 
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 4, 0))
++      root = d_make_root(inode);
++#else
+       root = d_alloc_root(inode);
++#endif
+ 
+       T(YAFFS_TRACE_OS, (TSTR("yaffs_read_super: d_alloc_root done\n")));
+ 

diff --git a/target/linux/generic/patches-3.6/511-yaffs-3.5-use-clear_inode.patch b/target/linux/generic/patches-3.6/511-yaffs-3.5-use-clear_inode.patch
new file mode 100644 (file)
index 0000000..f447967
--- /dev/null
+++ b/target/linux/generic/patches-3.6/511-yaffs-3.5-use-clear_inode.patch
@@ -0,0 +1,15 @@
+--- a/fs/yaffs2/yaffs_vfs_glue.c
++++ b/fs/yaffs2/yaffs_vfs_glue.c
+@@ -924,7 +924,11 @@ static void yaffs_evict_inode( struct in
+       if (!inode->i_nlink && !is_bad_inode(inode))
+               deleteme = 1;
+       truncate_inode_pages(&inode->i_data,0);
+-      end_writeback(inode);
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 5, 0)
++      clear_inode(inode);
++#else
++      end_writeback(inode);
++#endif
+ 
+       if(deleteme && obj){
+               dev = obj->my_dev;

diff --git a/target/linux/generic/patches-3.6/512-yaffs-3.6-fix-dir_inode-ops.patch b/target/linux/generic/patches-3.6/512-yaffs-3.6-fix-dir_inode-ops.patch
new file mode 100644 (file)
index 0000000..f9db0b3
--- /dev/null
+++ b/target/linux/generic/patches-3.6/512-yaffs-3.6-fix-dir_inode-ops.patch
@@ -0,0 +1,60 @@
+--- a/fs/yaffs2/yaffs_vfs_glue.c
++++ b/fs/yaffs2/yaffs_vfs_glue.c
+@@ -272,20 +272,29 @@ static int yaffs_sync_object(struct file
+ 
+ static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir);
+ 
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 3, 0))
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 6, 0))
++static int yaffs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
++                      bool excl);
++#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 3, 0))
+ static int yaffs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
+                       struct nameidata *n);
+-#else
++#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+ static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode,
+                       struct nameidata *n);
++#else
++static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode);
+ #endif
++
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 6, 0))
++static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry,
++                                      unsigned int flags);
++#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+ static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry,
+                                       struct nameidata *n);
+ #else
+-static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode);
+ static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry);
+ #endif
++
+ static int yaffs_link(struct dentry *old_dentry, struct inode *dir,
+                       struct dentry *dentry);
+ static int yaffs_unlink(struct inode *dir, struct dentry *dentry);
+@@ -811,7 +820,10 @@ struct inode *yaffs_get_inode(struct sup
+ /*
+  * Lookup is used to find objects in the fs
+  */
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 6, 0))
++static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry,
++                                 unsigned int flags)
++#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+ 
+ static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry,
+                               struct nameidata *n)
+@@ -1801,7 +1813,10 @@ static int yaffs_mkdir(struct inode *dir
+       return retVal;
+ }
+ 
+-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 3, 0))
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 6, 0))
++static int yaffs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
++                      bool excl)
++#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 3, 0))
+ static int yaffs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
+                       struct nameidata *n)
+ #elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))

diff --git a/target/linux/generic/patches-3.6/513-yaffs-3.6-use-delayed-work-instead-of-write_super.patch b/target/linux/generic/patches-3.6/513-yaffs-3.6-use-delayed-work-instead-of-write_super.patch
new file mode 100644 (file)
index 0000000..579932c
--- /dev/null
+++ b/target/linux/generic/patches-3.6/513-yaffs-3.6-use-delayed-work-instead-of-write_super.patch
@@ -0,0 +1,180 @@
+--- 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