config NILFS2_FS
tristate "NILFS2 file system support"
select CRC32
help
NILFS2 is a log-structured file system (LFS) supporting continuous
snapshotting. In addition to versioning capability of the entire
file system, users can even restore files mistakenly overwritten or
destroyed just a few seconds ago. Since this file system can keep
consistency like conventional LFS, it achieves quick recovery after
system crashes.
NILFS2 creates a number of checkpoints every few seconds or per
synchronous write basis (unless there is no change). Users can
select significant versions among continuously created checkpoints,
and can change them into snapshots which will be preserved for long
periods until they are changed back to checkpoints. Each
snapshot is mountable as a read-only file system concurrently with
its writable mount, and this feature is convenient for online backup.
Some features including atime, extended attributes, and POSIX ACLs,
are not supported yet.
To compile this file system support as a module, choose M here: the
module will be called nilfs2. If unsure, say N.
option value='nds-private-remove'>nds-private-remove
Merge fixes from Andrew Morton:
"26 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (26 commits)
MAINTAINERS: add Dan Streetman to zbud maintainers
MAINTAINERS: add Dan Streetman to zswap maintainers
mm: do not export ioremap_page_range symbol for external module
mn10300: fix build error of missing fpu_save()
romfs: use different way to generate fsid for BLOCK or MTD
frv: add missing atomic64 operations
mm, page_alloc: fix premature OOM when racing with cpuset mems update
mm, page_alloc: move cpuset seqcount checking to slowpath
mm, page_alloc: fix fast-path race with cpuset update or removal
mm, page_alloc: fix check for NULL preferred_zone
kernel/panic.c: add missing \n
fbdev: color map copying bounds checking
frv: add atomic64_add_unless()
mm/mempolicy.c: do not put mempolicy before using its nodemask
radix-tree: fix private list warnings
Documentation/filesystems/proc.txt: add VmPin
mm, memcg: do not retry precharge charges
proc: add a schedule point in proc_pid_readdir()
mm: alloc_contig: re-allow CMA to compact FS pages
mm/slub.c: trace free objects at KERN_INFO
...