linux/fs/nilfs2
Ryusuke Konishi e339ad31f5 nilfs2: introduce secondary super block
The former versions didn't have extra super blocks.  This improves the
weak point by introducing another super block at unused region in tail of
the partition.

This doesn't break disk format compatibility; older versions just ingore
the secondary super block, and new versions just recover it if it doesn't
exist.  The partition created by an old mkfs may not have unused region,
but in that case, the secondary super block will not be added.

This doesn't make more redundant copies of the super block; it is a future
work.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-07 08:31:20 -07:00
..
alloc.c nilfs2: persistent object allocator 2009-04-07 08:31:13 -07:00
alloc.h nilfs2: persistent object allocator 2009-04-07 08:31:13 -07:00
bmap_union.h nilfs2: integrated block mapping 2009-04-07 08:31:13 -07:00
bmap.c nilfs2: clean up indirect function calling conventions 2009-04-07 08:31:17 -07:00
bmap.h nilfs2: integrated block mapping 2009-04-07 08:31:13 -07:00
btnode.c nilfs2: B-tree node cache 2009-04-07 08:31:13 -07:00
btnode.h nilfs2: B-tree node cache 2009-04-07 08:31:13 -07:00
btree.c nilfs2: replace BUG_ON and BUG calls triggerable from ioctl 2009-04-07 08:31:19 -07:00
btree.h nilfs2: B-tree based block mapping 2009-04-07 08:31:13 -07:00
cpfile.c nilfs2: replace BUG_ON and BUG calls triggerable from ioctl 2009-04-07 08:31:19 -07:00
cpfile.h nilfs2: fix gc failure on volumes keeping numerous snapshots 2009-04-07 08:31:17 -07:00
dat.c nilfs2: replace BUG_ON and BUG calls triggerable from ioctl 2009-04-07 08:31:19 -07:00
dat.h nilfs2: disk address translator 2009-04-07 08:31:14 -07:00
dir.c nilfs2: use unlocked_ioctl 2009-04-07 08:31:19 -07:00
direct.c nilfs2: replace BUG_ON and BUG calls triggerable from ioctl 2009-04-07 08:31:19 -07:00
direct.h nilfs2: direct block mapping 2009-04-07 08:31:13 -07:00
file.c nilfs2: use unlocked_ioctl 2009-04-07 08:31:19 -07:00
gcdat.c nilfs2: another dat for garbage collection 2009-04-07 08:31:16 -07:00
gcinode.c nilfs2: insert explanations in gcinode file 2009-04-07 08:31:17 -07:00
ifile.c nilfs2: inode map file 2009-04-07 08:31:14 -07:00
ifile.h nilfs2: inode map file 2009-04-07 08:31:14 -07:00
inode.c nilfs2: clean up sketch file 2009-04-07 08:31:19 -07:00
ioctl.c nilfs2: replace BUG_ON and BUG calls triggerable from ioctl 2009-04-07 08:31:19 -07:00
Makefile nilfs2: update makefile and Kconfig 2009-04-07 08:31:16 -07:00
mdt.c nilfs2: replace BUG_ON and BUG calls triggerable from ioctl 2009-04-07 08:31:19 -07:00
mdt.h nilfs2: meta data file 2009-04-07 08:31:13 -07:00
namei.c nilfs2: avoid double error caused by nilfs_transaction_end 2009-04-07 08:31:17 -07:00
nilfs.h nilfs2: introduce secondary super block 2009-04-07 08:31:20 -07:00
page.c nilfs2: replace BUG_ON and BUG calls triggerable from ioctl 2009-04-07 08:31:19 -07:00
page.h nilfs2: buffer and page operations 2009-04-07 08:31:13 -07:00
recovery.c nilfs2: introduce secondary super block 2009-04-07 08:31:20 -07:00
sb.h
segbuf.c nilfs2: simplify handling of active state of segments 2009-04-07 08:31:20 -07:00
segbuf.h nilfs2: simplify handling of active state of segments 2009-04-07 08:31:20 -07:00
seglist.h nilfs2: segment constructor 2009-04-07 08:31:15 -07:00
segment.c nilfs2: introduce secondary super block 2009-04-07 08:31:20 -07:00
segment.h nilfs2: introduce secondary super block 2009-04-07 08:31:20 -07:00
sufile.c nilfs2: simplify handling of active state of segments 2009-04-07 08:31:20 -07:00
sufile.h nilfs2: segment usage file 2009-04-07 08:31:14 -07:00
super.c nilfs2: introduce secondary super block 2009-04-07 08:31:20 -07:00
the_nilfs.c nilfs2: introduce secondary super block 2009-04-07 08:31:20 -07:00
the_nilfs.h nilfs2: introduce secondary super block 2009-04-07 08:31:20 -07:00