571 lines
15 KiB
Diff
571 lines
15 KiB
Diff
--- a/fs/yaffs2/yaffs_vfs_glue.c
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+++ b/fs/yaffs2/yaffs_vfs_glue.c
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@@ -243,11 +243,10 @@ static inline void yaffs_dec_link_count(
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}
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#endif
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-
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#define update_dir_time(dir) do {\
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(dir)->i_ctime = (dir)->i_mtime = CURRENT_TIME; \
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} while(0)
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-
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+
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static void yaffs_put_super(struct super_block *sb);
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static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n,
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@@ -397,6 +396,33 @@ static struct address_space_operations y
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#endif
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};
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+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 5, 0))
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+#define YCRED_FSUID() from_kuid(&init_user_ns, current_fsuid())
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+#define YCRED_FSGID() from_kgid(&init_user_ns, current_fsgid())
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+#else
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+#define YCRED_FSUID() YCRED(current)->fsuid
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+#define YCRED_FSGID() YCRED(current)->fsgid
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+
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+static inline uid_t i_uid_read(const struct inode *inode)
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+{
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+ return inode->i_uid;
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+}
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+
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+static inline gid_t i_gid_read(const struct inode *inode)
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+{
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+ return inode->i_gid;
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+}
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+
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+static inline void i_uid_write(struct inode *inode, uid_t uid)
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+{
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+ inode->i_uid = uid;
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+}
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+
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+static inline void i_gid_write(struct inode *inode, gid_t gid)
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+{
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+ inode->i_gid = gid;
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+}
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+#endif
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#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 22))
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static const struct file_operations yaffs_file_operations = {
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@@ -549,7 +575,7 @@ static unsigned yaffs_gc_control_callbac
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{
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return yaffs_gc_control;
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}
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-
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+
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static void yaffs_gross_lock(yaffs_dev_t *dev)
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{
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T(YAFFS_TRACE_LOCK, (TSTR("yaffs locking %p\n"), current));
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@@ -1379,8 +1405,8 @@ static void yaffs_fill_inode_from_obj(st
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inode->i_ino = obj->obj_id;
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inode->i_mode = obj->yst_mode;
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- inode->i_uid = obj->yst_uid;
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- inode->i_gid = obj->yst_gid;
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+ i_uid_write(inode, obj->yst_uid);
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+ i_gid_write(inode, obj->yst_gid);
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#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19))
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inode->i_blksize = inode->i_sb->s_blocksize;
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#endif
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@@ -1406,7 +1432,7 @@ static void yaffs_fill_inode_from_obj(st
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T(YAFFS_TRACE_OS,
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(TSTR("yaffs_fill_inode mode %x uid %d gid %d size %d count %d\n"),
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- inode->i_mode, inode->i_uid, inode->i_gid,
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+ inode->i_mode, i_uid_read(inode), i_gid_read(inode),
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(int)inode->i_size, atomic_read(&inode->i_count)));
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switch (obj->yst_mode & S_IFMT) {
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@@ -1715,8 +1741,8 @@ static int yaffs_mknod(struct inode *dir
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yaffs_obj_t *parent = yaffs_InodeToObject(dir);
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int error = -ENOSPC;
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- uid_t uid = YCRED(current)->fsuid;
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- gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid;
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+ uid_t uid = YCRED_FSUID();
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+ gid_t gid = (dir->i_mode & S_ISGID) ? i_gid_read(dir) : YCRED_FSGID();
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if ((dir->i_mode & S_ISGID) && S_ISDIR(mode))
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mode |= S_ISGID;
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@@ -1892,8 +1918,8 @@ static int yaffs_symlink(struct inode *d
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{
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yaffs_obj_t *obj;
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yaffs_dev_t *dev;
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- uid_t uid = YCRED(current)->fsuid;
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- gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid;
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+ uid_t uid = YCRED_FSUID();
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+ gid_t gid = (dir->i_mode & S_ISGID) ? i_gid_read(dir) : YCRED_FSGID();
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T(YAFFS_TRACE_OS, (TSTR("yaffs_symlink\n")));
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@@ -2009,7 +2035,7 @@ static int yaffs_setattr(struct dentry *
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(TSTR("yaffs_setattr of object %d\n"),
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yaffs_InodeToObject(inode)->obj_id));
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- /* Fail if a requested resize >= 2GB */
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+ /* Fail if a requested resize >= 2GB */
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if (attr->ia_valid & ATTR_SIZE &&
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(attr->ia_size >> 31))
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error = -EINVAL;
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@@ -2240,7 +2266,7 @@ static void yaffs_flush_inodes(struct su
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{
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struct inode *iptr;
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yaffs_obj_t *obj;
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-
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+
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list_for_each_entry(iptr,&sb->s_inodes, i_sb_list){
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obj = yaffs_InodeToObject(iptr);
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if(obj){
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@@ -2254,10 +2280,10 @@ static void yaffs_flush_inodes(struct su
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static void yaffs_flush_super(struct super_block *sb, int do_checkpoint)
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{
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- yaffs_dev_t *dev = yaffs_SuperToDevice(sb);
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+ yaffs_dev_t *dev = yaffs_SuperToDevice(sb);
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if(!dev)
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return;
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-
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+
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yaffs_flush_inodes(sb);
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yaffs_update_dirty_dirs(dev);
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yaffs_flush_whole_cache(dev);
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@@ -2325,7 +2351,7 @@ static int yaffs_do_sync_fs(struct super
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* yaffs_bg_start() launches the background thread.
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* yaffs_bg_stop() cleans up the background thread.
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*
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- * NB:
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+ * NB:
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* The thread should only run after the yaffs is initialised
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* The thread should be stopped before yaffs is unmounted.
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* The thread should not do any writing while the fs is in read only.
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@@ -2924,7 +2950,7 @@ static struct super_block *yaffs_interna
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dev = kmalloc(sizeof(yaffs_dev_t), GFP_KERNEL);
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context = kmalloc(sizeof(struct yaffs_LinuxContext),GFP_KERNEL);
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-
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+
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if(!dev || !context ){
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if(dev)
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kfree(dev);
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@@ -2957,7 +2983,7 @@ static struct super_block *yaffs_interna
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#else
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sb->u.generic_sbp = dev;
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#endif
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-
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+
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dev->driver_context = mtd;
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param->name = mtd->name;
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@@ -3057,7 +3083,7 @@ static struct super_block *yaffs_interna
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param->gc_control = yaffs_gc_control_callback;
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yaffs_dev_to_lc(dev)->superBlock= sb;
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-
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+
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#ifndef CONFIG_YAFFS_DOES_ECC
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param->use_nand_ecc = 1;
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@@ -3099,10 +3125,10 @@ static struct super_block *yaffs_interna
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T(YAFFS_TRACE_OS,
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(TSTR("yaffs_read_super: guts initialised %s\n"),
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(err == YAFFS_OK) ? "OK" : "FAILED"));
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-
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+
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if(err == YAFFS_OK)
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yaffs_bg_start(dev);
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-
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+
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if(!context->bgThread)
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param->defered_dir_update = 0;
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@@ -3345,7 +3371,7 @@ static int yaffs_proc_read(char *page,
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buf += sprintf(buf,"\n");
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else {
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step-=2;
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-
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+
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mutex_lock(&yaffs_context_lock);
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/* Locate and print the Nth entry. Order N-squared but N is small. */
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@@ -3362,7 +3388,7 @@ static int yaffs_proc_read(char *page,
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buf = yaffs_dump_dev_part0(buf, dev);
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} else
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buf = yaffs_dump_dev_part1(buf, dev);
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-
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+
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break;
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}
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mutex_unlock(&yaffs_context_lock);
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@@ -3389,7 +3415,7 @@ static int yaffs_stats_proc_read(char *p
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int erasedChunks;
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erasedChunks = dev->n_erased_blocks * dev->param.chunks_per_block;
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-
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+
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buf += sprintf(buf,"%d, %d, %d, %u, %u, %u, %u\n",
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n, dev->n_free_chunks, erasedChunks,
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dev->bg_gcs, dev->oldest_dirty_gc_count,
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--- a/fs/yaffs2/yaffs_guts.c
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+++ b/fs/yaffs2/yaffs_guts.c
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@@ -370,7 +370,7 @@ static int yaffs_verify_chunk_written(ya
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yaffs_ext_tags tempTags;
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__u8 *buffer = yaffs_get_temp_buffer(dev,__LINE__);
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int result;
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-
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+
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result = yaffs_rd_chunk_tags_nand(dev,nand_chunk,buffer,&tempTags);
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if(memcmp(buffer,data,dev->data_bytes_per_chunk) ||
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tempTags.obj_id != tags->obj_id ||
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@@ -424,7 +424,7 @@ static int yaffs_write_new_chunk(struct
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* lot of checks that are most likely not needed.
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*
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* Mods to the above
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- * If an erase check fails or the write fails we skip the
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+ * If an erase check fails or the write fails we skip the
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* rest of the block.
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*/
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@@ -486,7 +486,7 @@ static int yaffs_write_new_chunk(struct
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}
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-
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+
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/*
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* Block retiring for handling a broken block.
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*/
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@@ -496,7 +496,7 @@ static void yaffs_retire_block(yaffs_dev
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yaffs_block_info_t *bi = yaffs_get_block_info(dev, flash_block);
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yaffs2_checkpt_invalidate(dev);
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-
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+
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yaffs2_clear_oldest_dirty_seq(dev,bi);
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if (yaffs_mark_bad(dev, flash_block) != YAFFS_OK) {
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@@ -899,7 +899,7 @@ static int yaffs_find_chunk_in_group(yaf
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for (j = 0; theChunk && j < dev->chunk_grp_size; j++) {
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if (yaffs_check_chunk_bit(dev, theChunk / dev->param.chunks_per_block,
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theChunk % dev->param.chunks_per_block)) {
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-
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+
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if(dev->chunk_grp_size == 1)
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return theChunk;
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else {
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@@ -1802,7 +1802,7 @@ int yaffs_rename_obj(yaffs_obj_t *old_di
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yaffs_update_parent(old_dir);
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if(new_dir != old_dir)
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yaffs_update_parent(new_dir);
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-
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+
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return result;
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}
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return YAFFS_FAIL;
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@@ -2125,7 +2125,7 @@ static int yaffs_gc_block(yaffs_dev_t *d
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if(bi->block_state == YAFFS_BLOCK_STATE_FULL)
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bi->block_state = YAFFS_BLOCK_STATE_COLLECTING;
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-
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+
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bi->has_shrink_hdr = 0; /* clear the flag so that the block can erase */
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dev->gc_disable = 1;
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@@ -2207,7 +2207,7 @@ static int yaffs_gc_block(yaffs_dev_t *d
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* No need to copy this, just forget about it and
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* fix up the object.
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*/
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-
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+
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/* Free chunks already includes softdeleted chunks.
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* How ever this chunk is going to soon be really deleted
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* which will increment free chunks.
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@@ -2752,7 +2752,7 @@ int yaffs_put_chunk_in_file(yaffs_obj_t
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NULL);
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if (!tn)
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return YAFFS_FAIL;
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-
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+
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if(!nand_chunk)
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/* Dummy insert, bail now */
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return YAFFS_OK;
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@@ -2881,7 +2881,7 @@ void yaffs_chunk_del(yaffs_dev_t *dev, i
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chunk_id));
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bi = yaffs_get_block_info(dev, block);
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-
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+
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yaffs2_update_oldest_dirty_seq(dev, block, bi);
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T(YAFFS_TRACE_DELETION,
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@@ -2966,8 +2966,8 @@ static int yaffs_wr_data_obj(yaffs_obj_t
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(TSTR("Writing %d bytes to chunk!!!!!!!!!" TENDSTR), n_bytes));
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YBUG();
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}
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-
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-
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+
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+
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newChunkId =
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yaffs_write_new_chunk(dev, buffer, &newTags,
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useReserve);
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@@ -3795,14 +3795,14 @@ int yaffs_resize_file(yaffs_obj_t *in, l
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if (new_size == oldFileSize)
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return YAFFS_OK;
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-
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+
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if(new_size > oldFileSize){
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yaffs2_handle_hole(in,new_size);
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in->variant.file_variant.file_size = new_size;
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} else {
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- /* new_size < oldFileSize */
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+ /* new_size < oldFileSize */
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yaffs_resize_file_down(in, new_size);
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- }
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+ }
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/* Write a new object header to reflect the resize.
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* show we've shrunk the file, if need be
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@@ -4231,7 +4231,7 @@ static void yaffs_strip_deleted_objs(yaf
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* This fixes the problem where directories might have inadvertently been deleted
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* leaving the object "hanging" without being rooted in the directory tree.
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*/
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-
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+
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static int yaffs_has_null_parent(yaffs_dev_t *dev, yaffs_obj_t *obj)
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{
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return (obj == dev->del_dir ||
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@@ -4262,7 +4262,7 @@ static void yaffs_fix_hanging_objs(yaffs
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if (lh) {
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obj = ylist_entry(lh, yaffs_obj_t, hash_link);
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parent= obj->parent;
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-
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+
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if(yaffs_has_null_parent(dev,obj)){
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/* These directories are not hanging */
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hanging = 0;
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@@ -4311,7 +4311,7 @@ static void yaffs_del_dir_contents(yaffs
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if(dir->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY)
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YBUG();
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-
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+
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ylist_for_each_safe(lh, n, &dir->variant.dir_variant.children) {
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if (lh) {
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obj = ylist_entry(lh, yaffs_obj_t, siblings);
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@@ -4325,10 +4325,10 @@ static void yaffs_del_dir_contents(yaffs
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/* Need to use UnlinkObject since Delete would not handle
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* hardlinked objects correctly.
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*/
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- yaffs_unlink_obj(obj);
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+ yaffs_unlink_obj(obj);
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}
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}
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-
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+
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}
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static void yaffs_empty_l_n_f(yaffs_dev_t *dev)
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@@ -4410,7 +4410,7 @@ static void yaffs_check_obj_details_load
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* If the directory updating is defered then yaffs_update_dirty_dirs must be
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* called periodically.
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*/
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-
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+
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static void yaffs_update_parent(yaffs_obj_t *obj)
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{
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yaffs_dev_t *dev;
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@@ -4422,8 +4422,8 @@ static void yaffs_update_parent(yaffs_ob
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obj->dirty = 1;
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obj->yst_mtime = obj->yst_ctime = Y_CURRENT_TIME;
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if(dev->param.defered_dir_update){
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- struct ylist_head *link = &obj->variant.dir_variant.dirty;
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-
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+ struct ylist_head *link = &obj->variant.dir_variant.dirty;
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+
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if(ylist_empty(link)){
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ylist_add(link,&dev->dirty_dirs);
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T(YAFFS_TRACE_BACKGROUND, (TSTR("Added object %d to dirty directories" TENDSTR),obj->obj_id));
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@@ -4446,7 +4446,7 @@ void yaffs_update_dirty_dirs(yaffs_dev_t
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while(!ylist_empty(&dev->dirty_dirs)){
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link = dev->dirty_dirs.next;
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ylist_del_init(link);
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-
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+
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dS=ylist_entry(link,yaffs_dir_s,dirty);
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oV = ylist_entry(dS,yaffs_obj_variant,dir_variant);
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obj = ylist_entry(oV,yaffs_obj_t,variant);
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@@ -4474,7 +4474,7 @@ static void yaffs_remove_obj_from_dir(ya
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ylist_del_init(&obj->siblings);
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obj->parent = NULL;
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-
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+
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yaffs_verify_dir(parent);
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}
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@@ -4645,7 +4645,7 @@ yaffs_obj_t *yaffs_get_equivalent_obj(ya
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* system to share files.
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*
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* These automatic unicode are stored slightly differently...
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- * - If the name can fit in the ASCII character space then they are saved as
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+ * - If the name can fit in the ASCII character space then they are saved as
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* ascii names as per above.
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* - If the name needs Unicode then the name is saved in Unicode
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* starting at oh->name[1].
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@@ -4686,7 +4686,7 @@ static void yaffs_load_name_from_oh(yaff
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asciiOhName++;
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n--;
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}
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- } else
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+ } else
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yaffs_strncpy(name,ohName+1, bufferSize -1);
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} else
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#endif
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@@ -4705,7 +4705,7 @@ static void yaffs_load_oh_from_name(yaff
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isAscii = 1;
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w = name;
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-
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+
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/* Figure out if the name will fit in ascii character set */
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while(isAscii && *w){
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if((*w) & 0xff00)
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@@ -4729,7 +4729,7 @@ static void yaffs_load_oh_from_name(yaff
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yaffs_strncpy(ohName+1,name, YAFFS_MAX_NAME_LENGTH -2);
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}
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}
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- else
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+ else
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#endif
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yaffs_strncpy(ohName,name, YAFFS_MAX_NAME_LENGTH - 1);
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@@ -4738,12 +4738,12 @@ static void yaffs_load_oh_from_name(yaff
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int yaffs_get_obj_name(yaffs_obj_t * obj, YCHAR * name, int buffer_size)
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{
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memset(name, 0, buffer_size * sizeof(YCHAR));
|
|
-
|
|
+
|
|
yaffs_check_obj_details_loaded(obj);
|
|
|
|
if (obj->obj_id == YAFFS_OBJECTID_LOSTNFOUND) {
|
|
yaffs_strncpy(name, YAFFS_LOSTNFOUND_NAME, buffer_size - 1);
|
|
- }
|
|
+ }
|
|
#ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM
|
|
else if (obj->short_name[0]) {
|
|
yaffs_strcpy(name, obj->short_name);
|
|
@@ -4861,9 +4861,9 @@ int yaffs_set_attribs(yaffs_obj_t *obj,
|
|
if (valid & ATTR_MODE)
|
|
obj->yst_mode = attr->ia_mode;
|
|
if (valid & ATTR_UID)
|
|
- obj->yst_uid = attr->ia_uid;
|
|
+ obj->yst_uid = ia_uid_read(attr);
|
|
if (valid & ATTR_GID)
|
|
- obj->yst_gid = attr->ia_gid;
|
|
+ obj->yst_gid = ia_gid_read(attr);
|
|
|
|
if (valid & ATTR_ATIME)
|
|
obj->yst_atime = Y_TIME_CONVERT(attr->ia_atime);
|
|
@@ -4886,9 +4886,9 @@ int yaffs_get_attribs(yaffs_obj_t *obj,
|
|
|
|
attr->ia_mode = obj->yst_mode;
|
|
valid |= ATTR_MODE;
|
|
- attr->ia_uid = obj->yst_uid;
|
|
+ ia_uid_write(attr, obj->yst_uid);
|
|
valid |= ATTR_UID;
|
|
- attr->ia_gid = obj->yst_gid;
|
|
+ ia_gid_write(attr, obj->yst_gid);
|
|
valid |= ATTR_GID;
|
|
|
|
Y_TIME_CONVERT(attr->ia_atime) = obj->yst_atime;
|
|
--- a/fs/yaffs2/yportenv.h
|
|
+++ b/fs/yaffs2/yportenv.h
|
|
@@ -170,7 +170,7 @@
|
|
#define O_RDWR 02
|
|
#endif
|
|
|
|
-#ifndef O_CREAT
|
|
+#ifndef O_CREAT
|
|
#define O_CREAT 0100
|
|
#endif
|
|
|
|
@@ -218,7 +218,7 @@
|
|
#define EACCES 13
|
|
#endif
|
|
|
|
-#ifndef EXDEV
|
|
+#ifndef EXDEV
|
|
#define EXDEV 18
|
|
#endif
|
|
|
|
@@ -281,7 +281,7 @@
|
|
#define S_IFREG 0100000
|
|
#endif
|
|
|
|
-#ifndef S_IREAD
|
|
+#ifndef S_IREAD
|
|
#define S_IREAD 0000400
|
|
#endif
|
|
|
|
--- a/fs/yaffs2/devextras.h
|
|
+++ b/fs/yaffs2/devextras.h
|
|
@@ -87,6 +87,8 @@ struct iattr {
|
|
unsigned int ia_attr_flags;
|
|
};
|
|
|
|
+/* TODO: add ia_* functions */
|
|
+
|
|
#endif
|
|
|
|
#else
|
|
@@ -95,7 +97,48 @@ struct iattr {
|
|
#include <linux/fs.h>
|
|
#include <linux/stat.h>
|
|
|
|
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 5, 0))
|
|
+static inline uid_t ia_uid_read(const struct iattr *iattr)
|
|
+{
|
|
+ return from_kuid(&init_user_ns, iattr->ia_uid);
|
|
+}
|
|
+
|
|
+static inline gid_t ia_gid_read(const struct iattr *iattr)
|
|
+{
|
|
+ return from_kgid(&init_user_ns, iattr->ia_gid);
|
|
+}
|
|
+
|
|
+static inline void ia_uid_write(struct iattr *iattr, uid_t uid)
|
|
+{
|
|
+ iattr->ia_uid = make_kuid(&init_user_ns, uid);
|
|
+}
|
|
+
|
|
+static inline void ia_gid_write(struct iattr *iattr, gid_t gid)
|
|
+{
|
|
+ iattr->ia_gid = make_kgid(&init_user_ns, gid);
|
|
+}
|
|
+#else
|
|
+static inline uid_t ia_uid_read(const struct iattr *iattr)
|
|
+{
|
|
+ return iattr->ia_uid;
|
|
+}
|
|
+
|
|
+static inline gid_t ia_gid_read(const struct iattr *inode)
|
|
+{
|
|
+ return iattr->ia_gid;
|
|
+}
|
|
+
|
|
+static inline void ia_uid_write(struct iattr *iattr, uid_t uid)
|
|
+{
|
|
+ iattr->ia_uid = uid;
|
|
+}
|
|
+
|
|
+static inline void ia_gid_write(struct iattr *iattr, gid_t gid)
|
|
+{
|
|
+ iattr->ia_gid = gid;
|
|
+}
|
|
#endif
|
|
|
|
+#endif
|
|
|
|
#endif
|