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btrfs: sanity mount option parsing and early mount code

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Also adds lots of comments to describe what's going on here.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Christoph Hellwig
2008-06-10 10:40:29 -04:00
committed by Chris Mason
parent 306929f364
commit edf24abe51
3 changed files with 139 additions and 106 deletions
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5
fs/btrfs/disk-io.c
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@@ -1266,8 +1266,11 @@ struct btrfs_root *open_ctree(struct super_block *sb,
if (!btrfs_super_root(disk_super))
goto fail_sb_buffer;
btrfs_parse_options(options, tree_root, NULL);
err = btrfs_parse_options(tree_root, options);
if (err)
goto fail_sb_buffer;
err = -EINVAL;
if (btrfs_super_num_devices(disk_super) > fs_devices->open_devices) {
printk("Btrfs: wanted %llu devices, but found %llu\n",
(unsigned long long)btrfs_super_num_devices(disk_super),