Btrfs: Misc 2.6.25 updates

Remove the btrfs read_inode method, and use save_mount_options

Signed-off-by: Chris Mason <chris.mason@oracle.com>

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index bbb71fa..315dd55 100644 (file)
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -297,7 +297,6 @@ int btrfs_clear_bit_hook(struct inode *inode, u64 start, u64 end,
 
 int btrfs_submit_bio_hook(int rw, struct bio *bio)
 {
-       // struct bio_vec *bvec = bio->bi_io_vec + bio->bi_vcnt - 1;
        struct bio_vec *bvec = bio->bi_io_vec;
        struct inode *inode = bvec->bv_page->mapping->host;
        struct btrfs_root *root = BTRFS_I(inode)->root;
@@ -320,32 +319,7 @@ int btrfs_submit_bio_hook(int rw, struct bio *bio)
        mutex_unlock(&root->fs_info->fs_mutex);
        return ret;
 }
-#if 0
-int btrfs_writepage_io_hook(struct page *page, u64 start, u64 end)
-{
-       struct inode *inode = page->mapping->host;
-       struct btrfs_root *root = BTRFS_I(inode)->root;
-       struct btrfs_trans_handle *trans;
-       char *kaddr;
-       int ret = 0;
-       u64 page_start = (u64)page->index << PAGE_CACHE_SHIFT;
-       size_t offset = start - page_start;
-       if (btrfs_test_opt(root, NODATASUM) ||
-           btrfs_test_flag(inode, NODATASUM))
-               return 0;
-       mutex_lock(&root->fs_info->fs_mutex);
-       trans = btrfs_start_transaction(root, 1);
-       btrfs_set_trans_block_group(trans, inode);
-       kaddr = kmap(page);
-       btrfs_csum_file_block(trans, root, inode, inode->i_ino,
-                             start, kaddr + offset, end - start + 1);
-       kunmap(page);
-       ret = btrfs_end_transaction(trans, root);
-       BUG_ON(ret);
-       mutex_unlock(&root->fs_info->fs_mutex);
-       return ret;
-}
-#endif
+
 int btrfs_readpage_io_hook(struct page *page, u64 start, u64 end)
 {
        int ret = 0;
@@ -3049,7 +3023,6 @@ static struct file_operations btrfs_dir_file_operations = {
 
 static struct extent_io_ops btrfs_extent_io_ops = {
        .fill_delalloc = run_delalloc_range,
-       // .writepage_io_hook = btrfs_writepage_io_hook,
        .submit_bio_hook = btrfs_submit_bio_hook,
        .readpage_io_hook = btrfs_readpage_io_hook,
        .readpage_end_io_hook = btrfs_readpage_end_io_hook,

diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index a46300c..4423a91 100644 (file)
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -272,6 +272,11 @@ static int btrfs_fill_super(struct super_block * sb, void * data, int silent)
 
        sb->s_root = root_dentry;
        btrfs_transaction_queue_work(tree_root, HZ * 30);
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25)
+       save_mount_options(sb, data);
+#endif
+
        return 0;
 
 fail_close:
@@ -462,9 +467,13 @@ static struct super_operations btrfs_super_ops = {
        .delete_inode   = btrfs_delete_inode,
        .put_inode      = btrfs_put_inode,
        .put_super      = btrfs_put_super,
-       .read_inode     = btrfs_read_locked_inode,
        .write_super    = btrfs_write_super,
        .sync_fs        = btrfs_sync_fs,
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,25)
+       .read_inode     = btrfs_read_locked_inode,
+#else
+       .show_options   = generic_show_options,
+#endif
        .write_inode    = btrfs_write_inode,
        .dirty_inode    = btrfs_dirty_inode,
        .alloc_inode    = btrfs_alloc_inode,