yaffs Moving timothy_tests and updating the makefiles to work with the new test-framework
[yaffs2.git] / yaffs_vfs_multi.c
index 966df48..3cf6dde 100644 (file)
@@ -72,7 +72,9 @@
 #include <linux/init.h>
 #include <linux/fs.h>
 #include <linux/proc_fs.h>
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 39))
 #include <linux/smp_lock.h>
+#endif
 #include <linux/pagemap.h>
 #include <linux/mtd/mtd.h>
 #include <linux/interrupt.h>
 #define YAFFS_USE_WRITE_BEGIN_END 0
 #endif
 
+
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 2, 0))
+#define set_nlink(inode, count)  do { (inode)->i_nlink = (count); } while(0)
+#endif
+
 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 28))
 static uint32_t YCALCBLOCKS(uint64_t partition_size, uint32_t block_size)
 {
@@ -168,8 +176,6 @@ static uint32_t YCALCBLOCKS(uint64_t partition_size, uint32_t block_size)
 #include "yaffs_linux.h"
 
 #include "yaffs_mtdif.h"
-#include "yaffs_mtdif1.h"
-#include "yaffs_mtdif2.h"
 
 unsigned int yaffs_trace_mask = YAFFS_TRACE_BAD_BLOCKS | YAFFS_TRACE_ALWAYS;
 unsigned int yaffs_wr_attempts = YAFFS_WR_ATTEMPTS;
@@ -237,7 +243,9 @@ static int yaffs_file_flush(struct file *file, fl_owner_t id);
 static int yaffs_file_flush(struct file *file);
 #endif
 
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 34))
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39))
+static int yaffs_sync_object(struct file *file, loff_t start, loff_t end, int datasync);
+#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 34))
 static int yaffs_sync_object(struct file *file, int datasync);
 #else
 static int yaffs_sync_object(struct file *file, struct dentry *dentry,
@@ -966,13 +974,13 @@ static int yaffs_readpage_nolock(struct file *f, struct page *pg)
        struct yaffs_obj *obj;
        unsigned char *pg_buf;
        int ret;
-
+       loff_t pos = ((loff_t) pg->index) << PAGE_CACHE_SHIFT;
        struct yaffs_dev *dev;
 
        yaffs_trace(YAFFS_TRACE_OS,
-               "yaffs_readpage_nolock at %08x, size %08x",
-               (unsigned)(pg->index << PAGE_CACHE_SHIFT),
-               (unsigned)PAGE_CACHE_SIZE);
+               "yaffs_readpage_nolock at %lld, size %08x",
+               (long long)pos,
+               (unsigned)PAGE_CACHE_SIZE);
 
        obj = yaffs_dentry_to_obj(f->f_dentry);
 
@@ -990,8 +998,7 @@ static int yaffs_readpage_nolock(struct file *f, struct page *pg)
 
        yaffs_gross_lock(dev);
 
-       ret = yaffs_file_rd(obj, pg_buf,
-                           pg->index << PAGE_CACHE_SHIFT, PAGE_CACHE_SIZE);
+       ret = yaffs_file_rd(obj, pg_buf, pos, PAGE_CACHE_SIZE);
 
        yaffs_gross_unlock(dev);
 
@@ -1064,9 +1071,9 @@ static int yaffs_writepage(struct page *page)
 
                if (page->index > end_index || !n_bytes) {
                        yaffs_trace(YAFFS_TRACE_OS,
-                               "yaffs_writepage at %08x, inode size = %08x!!",
-                               (unsigned)(page->index << PAGE_CACHE_SHIFT),
-                               (unsigned)inode->i_size);
+                               "yaffs_writepage at %lld, inode size = %lld!!",
+                               ((loff_t)page->index) << PAGE_CACHE_SHIFT,
+                               inode->i_size);
                        yaffs_trace(YAFFS_TRACE_OS,
                                "                -> don't care!!");
 
@@ -1090,20 +1097,20 @@ static int yaffs_writepage(struct page *page)
        yaffs_gross_lock(dev);
 
        yaffs_trace(YAFFS_TRACE_OS,
-               "yaffs_writepage at %08x, size %08x",
-               (unsigned)(page->index << PAGE_CACHE_SHIFT), n_bytes);
+               "yaffs_writepage at %lld, size %08x",
+               ((loff_t)page->index) << PAGE_CACHE_SHIFT, n_bytes);
        yaffs_trace(YAFFS_TRACE_OS,
-               "writepag0: obj = %05x, ino = %05x",
-               (int)obj->variant.file_variant.file_size, (int)inode->i_size);
+               "writepag0: obj = %lld, ino = %lld",
+               obj->variant.file_variant.file_size, inode->i_size);
 
        n_written = yaffs_wr_file(obj, buffer,
-                                 page->index << PAGE_CACHE_SHIFT, n_bytes, 0);
+                                 ((loff_t)page->index) << PAGE_CACHE_SHIFT, n_bytes, 0);
 
        yaffs_touch_super(dev);
 
        yaffs_trace(YAFFS_TRACE_OS,
-               "writepag1: obj = %05x, ino = %05x",
-               (int)obj->variant.file_variant.file_size, (int)inode->i_size);
+               "writepag1: obj = %lld, ino = %lld",
+               obj->variant.file_variant.file_size, inode->i_size);
 
        yaffs_gross_unlock(dev);
 
@@ -1202,8 +1209,8 @@ static int yaffs_write_end(struct file *filp, struct address_space *mapping,
        addr = kva + offset_into_page;
 
        yaffs_trace(YAFFS_TRACE_OS,
-               "yaffs_write_end addr %p pos %x n_bytes %d",
-               addr, (unsigned)pos, copied);
+               "yaffs_write_end addr %p pos %lld n_bytes %d",
+               addr, pos, copied);
 
        ret = yaffs_file_write(filp, addr, copied, &pos);
 
@@ -1232,17 +1239,12 @@ static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset,
        int n_bytes = to - offset;
        int n_written;
 
-       unsigned spos = pos;
-       unsigned saddr;
-
        kva = kmap(pg);
        addr = kva + offset;
 
-       saddr = (unsigned)addr;
-
        yaffs_trace(YAFFS_TRACE_OS,
-               "yaffs_commit_write addr %x pos %x n_bytes %d",
-               saddr, spos, n_bytes);
+               "yaffs_commit_write addr %p pos %lld n_bytes %d",
+               addr, pos, n_bytes);
 
        n_written = yaffs_file_write(f, addr, n_bytes, &pos);
 
@@ -1326,12 +1328,12 @@ static void yaffs_fill_inode_from_obj(struct inode *inode,
                inode->i_size = yaffs_get_obj_length(obj);
                inode->i_blocks = (inode->i_size + 511) >> 9;
 
-               inode->i_nlink = yaffs_get_obj_link_count(obj);
+               set_nlink(inode, yaffs_get_obj_link_count(obj));
 
                yaffs_trace(YAFFS_TRACE_OS,
-                       "yaffs_fill_inode mode %x uid %d gid %d size %d count %d",
+                       "yaffs_fill_inode mode %x uid %d gid %d size %lld count %d",
                        inode->i_mode, inode->i_uid, inode->i_gid,
-                       (int)inode->i_size, atomic_read(&inode->i_count));
+                       inode->i_size, atomic_read(&inode->i_count));
 
                switch (obj->yst_mode & S_IFMT) {
                default:        /* fifo, device or socket */
@@ -1406,7 +1408,8 @@ static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n,
                                loff_t * pos)
 {
        struct yaffs_obj *obj;
-       int n_written, ipos;
+       int n_written;
+       loff_t ipos;
        struct inode *inode;
        struct yaffs_dev *dev;
 
@@ -1430,8 +1433,8 @@ static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n,
                ipos = *pos;
 
        yaffs_trace(YAFFS_TRACE_OS,
-               "yaffs_file_write about to write writing %u(%x) bytes to object %d at %d(%x)",
-               (unsigned)n, (unsigned)n, obj->obj_id, ipos, ipos);
+               "yaffs_file_write about to write writing %u(%x) bytes to object %d at %lld",
+               (unsigned)n, (unsigned)n, obj->obj_id, ipos);
 
        n_written = yaffs_wr_file(obj, buf, ipos, n, 0);
 
@@ -1449,7 +1452,7 @@ static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n,
                        inode->i_blocks = (ipos + 511) >> 9;
 
                        yaffs_trace(YAFFS_TRACE_OS,
-                               "yaffs_file_write size updated to %d bytes, %d blocks",
+                               "yaffs_file_write size updated to %lld bytes, %d blocks",
                                ipos, (int)(inode->i_blocks));
                }
 
@@ -1740,10 +1743,9 @@ static int yaffs_unlink(struct inode *dir, struct dentry *dentry)
        ret_val = yaffs_unlinker(obj, dentry->d_name.name);
 
        if (ret_val == YAFFS_OK) {
-               dentry->d_inode->i_nlink--;
+               inode_dec_link_count(dentry->d_inode);
                dir->i_version++;
                yaffs_gross_unlock(dev);
-               mark_inode_dirty(dentry->d_inode);
                update_dir_time(dir);
                return 0;
        }
@@ -1775,7 +1777,7 @@ static int yaffs_link(struct dentry *old_dentry, struct inode *dir,
                                   obj);
 
        if (link) {
-               old_dentry->d_inode->i_nlink = yaffs_get_obj_link_count(obj);
+               set_nlink(old_dentry->d_inode, yaffs_get_obj_link_count(obj));
                d_instantiate(dentry, old_dentry->d_inode);
                atomic_inc(&old_dentry->d_inode->i_count);
                yaffs_trace(YAFFS_TRACE_OS,
@@ -1805,6 +1807,14 @@ static int yaffs_symlink(struct inode *dir, struct dentry *dentry,
 
        yaffs_trace(YAFFS_TRACE_OS, "yaffs_symlink");
 
+       if (strnlen(dentry->d_name.name, YAFFS_MAX_NAME_LENGTH + 1) >
+                               YAFFS_MAX_NAME_LENGTH)
+               return -ENAMETOOLONG;
+
+       if (strnlen(symname, YAFFS_MAX_ALIAS_LENGTH + 1) >
+                               YAFFS_MAX_ALIAS_LENGTH)
+               return -ENAMETOOLONG;
+
        dev = yaffs_inode_to_obj(dir)->my_dev;
        yaffs_gross_lock(dev);
        obj = yaffs_create_symlink(yaffs_inode_to_obj(dir), dentry->d_name.name,
@@ -1826,7 +1836,9 @@ static int yaffs_symlink(struct inode *dir, struct dentry *dentry,
        return -ENOMEM;
 }
 
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 34))
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39))
+static int yaffs_sync_object(struct file *file, loff_t start, loff_t end, int datasync)
+#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 34))
 static int yaffs_sync_object(struct file *file, int datasync)
 #else
 static int yaffs_sync_object(struct file *file, struct dentry *dentry,
@@ -1891,10 +1903,8 @@ static int yaffs_rename(struct inode *old_dir, struct dentry *old_dentry,
        yaffs_gross_unlock(dev);
 
        if (ret_val == YAFFS_OK) {
-               if (target) {
-                       new_dentry->d_inode->i_nlink--;
-                       mark_inode_dirty(new_dentry->d_inode);
-               }
+               if (target)
+                       inode_dec_link_count(new_dentry->d_inode);
 
                update_dir_time(old_dir);
                if (old_dir != new_dir)
@@ -1914,10 +1924,11 @@ static int yaffs_setattr(struct dentry *dentry, struct iattr *attr)
        yaffs_trace(YAFFS_TRACE_OS,
                "yaffs_setattr of object %d",
                yaffs_inode_to_obj(inode)->obj_id);
-
+#if 0
        /* Fail if a requested resize >= 2GB */
        if (attr->ia_valid & ATTR_SIZE && (attr->ia_size >> 31))
                error = -EINVAL;
+#endif
 
        if (error == 0)
                error = inode_change_ok(inode, attr);
@@ -2462,8 +2473,10 @@ struct mutex yaffs_context_lock;
 static void yaffs_put_super(struct super_block *sb)
 {
        struct yaffs_dev *dev = yaffs_super_to_dev(sb);
+       struct mtd_info *mtd = yaffs_dev_to_mtd(dev);
 
-       yaffs_trace(YAFFS_TRACE_OS, "yaffs_put_super");
+       yaffs_trace(YAFFS_TRACE_OS | YAFFS_TRACE_ALWAYS,
+                       "yaffs_put_super");
 
        yaffs_trace(YAFFS_TRACE_OS | YAFFS_TRACE_BACKGROUND,
                "Shutting down yaffs background thread");
@@ -2475,9 +2488,6 @@ static void yaffs_put_super(struct super_block *sb)
 
        yaffs_flush_super(sb, 1);
 
-       if (yaffs_dev_to_lc(dev)->put_super_fn)
-               yaffs_dev_to_lc(dev)->put_super_fn(sb);
-
        yaffs_deinitialise(dev);
 
        yaffs_gross_unlock(dev);
@@ -2492,18 +2502,18 @@ static void yaffs_put_super(struct super_block *sb)
        }
 
        kfree(dev);
-}
-
-static void yaffs_mtd_put_super(struct super_block *sb)
-{
-       struct mtd_info *mtd = yaffs_dev_to_mtd(yaffs_super_to_dev(sb));
 
-       if (mtd->sync)
+       if (mtd && mtd->sync)
                mtd->sync(mtd);
 
-       put_mtd_device(mtd);
+       if(mtd)
+               put_mtd_device(mtd);
+
+       yaffs_trace(YAFFS_TRACE_OS | YAFFS_TRACE_ALWAYS,
+                       "yaffs_put_super done");
 }
 
+
 static void yaffs_touch_super(struct yaffs_dev *dev)
 {
        struct super_block *sb = yaffs_dev_to_lc(dev)->super;
@@ -2812,19 +2822,13 @@ static struct super_block *yaffs_internal_read_super(int yaffs_version,
        sb->u.generic_sbp = dev;
 #endif
 
+
        dev->driver_context = mtd;
        param->name = mtd->name;
 
        /* Set up the memory size parameters.... */
 
-       n_blocks =
-           YCALCBLOCKS(mtd->size,
-                       (YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK));
 
-       param->start_block = 0;
-       param->end_block = n_blocks - 1;
-       param->chunks_per_block = YAFFS_CHUNKS_PER_BLOCK;
-       param->total_bytes_per_chunk = YAFFS_BYTES_PER_CHUNK;
        param->n_reserved_blocks = 5;
        param->n_caches = (options.no_cache) ? 0 : 10;
        param->inband_tags = options.inband_tags;
@@ -2847,12 +2851,6 @@ static struct super_block *yaffs_internal_read_super(int yaffs_version,
 
        /* ... and the functions. */
        if (yaffs_version == 2) {
-               param->write_chunk_tags_fn = nandmtd2_write_chunk_tags;
-               param->read_chunk_tags_fn = nandmtd2_read_chunk_tags;
-               param->bad_block_fn = nandmtd2_mark_block_bad;
-               param->query_block_fn = nandmtd2_query_block;
-               yaffs_dev_to_lc(dev)->spare_buffer =
-                               kmalloc(mtd->oobsize, GFP_NOFS);
                param->is_yaffs2 = 1;
 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
                param->total_bytes_per_chunk = mtd->writesize;
@@ -2866,26 +2864,21 @@ static struct super_block *yaffs_internal_read_super(int yaffs_version,
                param->start_block = 0;
                param->end_block = n_blocks - 1;
        } else {
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
-               /* use the MTD interface in yaffs_mtdif1.c */
-               param->write_chunk_tags_fn = nandmtd1_write_chunk_tags;
-               param->read_chunk_tags_fn = nandmtd1_read_chunk_tags;
-               param->bad_block_fn = nandmtd1_mark_block_bad;
-               param->query_block_fn = nandmtd1_query_block;
-#else
-               param->write_chunk_fn = nandmtd_write_chunk;
-               param->read_chunk_fn = nandmtd_read_chunk;
-#endif
                param->is_yaffs2 = 0;
+               n_blocks = YCALCBLOCKS(mtd->size,
+                            YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK);
+
+               param->chunks_per_block = YAFFS_CHUNKS_PER_BLOCK;
+               param->total_bytes_per_chunk = YAFFS_BYTES_PER_CHUNK;
        }
-       /* ... and common functions */
-       param->erase_fn = nandmtd_erase_block;
-       param->initialise_flash_fn = nandmtd_initialise;
 
-       yaffs_dev_to_lc(dev)->put_super_fn = yaffs_mtd_put_super;
+       param->start_block = 0;
+       param->end_block = n_blocks - 1;
+
+       yaffs_mtd_drv_install(dev);
 
        param->sb_dirty_fn = yaffs_touch_super;
-       param->gc_control = yaffs_gc_control_callback;
+       param->gc_control_fn = yaffs_gc_control_callback;
 
        yaffs_dev_to_lc(dev)->super = sb;
 
@@ -2933,6 +2926,8 @@ static struct super_block *yaffs_internal_read_super(int yaffs_version,
        if (!context->bg_thread)
                param->defered_dir_update = 0;
 
+       sb->s_maxbytes = yaffs_max_file_size(dev);
+
        /* Release lock before yaffs_get_inode() */
        yaffs_gross_unlock(dev);
 
@@ -2973,7 +2968,13 @@ static int yaffs_internal_read_super_mtd(struct super_block *sb, void *data,
        return yaffs_internal_read_super(1, sb, data, silent) ? 0 : -EINVAL;
 }
 
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39))
+static struct dentry *yaffs_mount(struct file_system_type *fs_type, int flags,
+        const char *dev_name, void *data)
+{
+    return mount_bdev(fs_type, flags, dev_name, data, yaffs_internal_read_super_mtd);
+}
+#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
 static int yaffs_read_super(struct file_system_type *fs,
                            int flags, const char *dev_name,
                            void *data, struct vfsmount *mnt)
@@ -2996,8 +2997,12 @@ static struct super_block *yaffs_read_super(struct file_system_type *fs,
 static struct file_system_type yaffs_fs_type = {
        .owner = THIS_MODULE,
        .name = "yaffs",
-       .get_sb = yaffs_read_super,
-       .kill_sb = kill_block_super,
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39))
+        .mount = yaffs_mount,
+#else
+        .get_sb = yaffs_read_super,
+#endif
+       .kill_sb = kill_block_super,
        .fs_flags = FS_REQUIRES_DEV,
 };
 #else
@@ -3019,7 +3024,13 @@ static int yaffs2_internal_read_super_mtd(struct super_block *sb, void *data,
        return yaffs_internal_read_super(2, sb, data, silent) ? 0 : -EINVAL;
 }
 
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39))
+static struct dentry *yaffs2_mount(struct file_system_type *fs_type, int flags,
+        const char *dev_name, void *data)
+{
+        return mount_bdev(fs_type, flags, dev_name, data, yaffs2_internal_read_super_mtd);
+}
+#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
 static int yaffs2_read_super(struct file_system_type *fs,
                             int flags, const char *dev_name, void *data,
                             struct vfsmount *mnt)
@@ -3041,8 +3052,12 @@ static struct super_block *yaffs2_read_super(struct file_system_type *fs,
 static struct file_system_type yaffs2_fs_type = {
        .owner = THIS_MODULE,
        .name = "yaffs2",
-       .get_sb = yaffs2_read_super,
-       .kill_sb = kill_block_super,
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39))
+        .mount = yaffs2_mount,
+#else
+        .get_sb = yaffs2_read_super,
+#endif
+       .kill_sb = kill_block_super,
        .fs_flags = FS_REQUIRES_DEV,
 };
 #else
@@ -3089,6 +3104,8 @@ static char *yaffs_dump_dev_part0(char *buf, struct yaffs_dev *dev)
 
 static char *yaffs_dump_dev_part1(char *buf, struct yaffs_dev *dev)
 {
+       buf += sprintf(buf, "max file size....... %lld\n",
+                               (long long) yaffs_max_file_size(dev));
        buf += sprintf(buf, "data_bytes_per_chunk. %d\n",
                                dev->data_bytes_per_chunk);
        buf += sprintf(buf, "chunk_grp_bits....... %d\n", dev->chunk_grp_bits);
@@ -3112,8 +3129,8 @@ static char *yaffs_dump_dev_part1(char *buf, struct yaffs_dev *dev)
                                dev->oldest_dirty_gc_count);
        buf += sprintf(buf, "n_gc_blocks.......... %u\n", dev->n_gc_blocks);
        buf += sprintf(buf, "bg_gcs............... %u\n", dev->bg_gcs);
-       buf += sprintf(buf, "n_retired_writes..... %u\n",
-                               dev->n_retired_writes);
+       buf += sprintf(buf, "n_retried_writes..... %u\n",
+                               dev->n_retried_writes);
        buf += sprintf(buf, "n_retired_blocks..... %u\n",
                                dev->n_retired_blocks);
        buf += sprintf(buf, "n_ecc_fixed.......... %u\n", dev->n_ecc_fixed);