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Btrfs-progs: add missing write check for mkfs

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Assert that the writes of the device and chunk tree
roots succeed. This verification is currently done
for all other tree roots, however it was missing for
those 2 trees.

Would these tree root writes fail, but all others succeed,
it would lead to a corrupted/incomplete btrfs filesystem,
or, more likely some weird failure later on in mkfs.btrfs
inside open_ctree().

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
This commit is contained in:
Filipe David Borba Manana 2013-07-03 18:30:41 +01:00 committed by David Sterba
parent 705e76ee8d
commit 80bab0f18c
1 changed files with 2 additions and 0 deletions
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2
utils.c
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@ -346,6 +346,7 @@ int make_btrfs(int fd, const char *device, const char *label,
btrfs_set_header_nritems(buf, nritems);
csum_tree_block_size(buf, BTRFS_CRC32_SIZE, 0);
ret = pwrite(fd, buf->data, leafsize, blocks[3]);
BUG_ON(ret != leafsize);
/* create the device tree */
memset(buf->data+sizeof(struct btrfs_header), 0,
@ -381,6 +382,7 @@ int make_btrfs(int fd, const char *device, const char *label,
btrfs_set_header_nritems(buf, nritems);
csum_tree_block_size(buf, BTRFS_CRC32_SIZE, 0);
ret = pwrite(fd, buf->data, leafsize, blocks[4]);
BUG_ON(ret != leafsize);
/* create the FS root */
memset(buf->data+sizeof(struct btrfs_header), 0,