btrfs: add dev maxs limit for __btrfs_alloc_chunk in kernel space
authorGui Hecheng <guihc.fnst@cn.fujitsu.com>
Mon, 21 Apr 2014 12:13:12 +0000 (20:13 +0800)
committerChris Mason <clm@fb.com>
Tue, 10 Jun 2014 00:20:36 +0000 (17:20 -0700)
commit23f8f9b7caca83d3397b1288a519c6579b7fda88
tree5853816c24f3d48cc969bf80581451a110262551
parent5f43f86e3f62734dfeeb36c4d940425a2c6789dc
btrfs: add dev maxs limit for __btrfs_alloc_chunk in kernel space

For RAID0,5,6,10,
For system chunk, there shouldn't be too many stripes to
make a btrfs_chunk that exceeds BTRFS_SYSTEM_CHUNK_ARRAY_SIZE
For data/meta chunk, there shouldn't be too many stripes to
make a btrfs_chunk that exceeds a leaf.

Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
fs/btrfs/volumes.c