tree 08ad34d43aac48e8f8143a0b1fa07141df8f202a
parent c8174313a8102e874aaa321e2fc4c7c460a87151
author David Sterba <dsterba@suse.cz> 1302702064 +0200
committer Chris Mason <chris.mason@oracle.com> 1320566641 -0500

btrfs: separate superblock items out of fs_info

fs_info has now ~9kb, more than fits into one page. This will cause
mount failure when memory is too fragmented. Top space consumers are
super block structures super_copy and super_for_commit, ~2.8kb each.
Allocate them dynamically. fs_info will be ~3.5kb. (measured on x86_64)

Add a wrapper for freeing fs_info and all of it's dynamically allocated
members.

Signed-off-by: David Sterba <dsterba@suse.cz>