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. lue='master' selected='selected'>master net-next plumbingsTobias Klauser
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authorLinus Torvalds <torvalds@linux-foundation.org>2017-01-01 12:27:05 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-01-01 12:27:05 -0800
commit4759d386d55fef452d692bf101167914437e848e (patch)
treee7109c192ec589fcea2a98f9702aa3c0e4009581 /net/wireless/wext-spy.c
parent238d1d0f79f619d75c2cc741d6770fb0986aef24 (diff)
parent1db175428ee374489448361213e9c3b749d14900 (diff)
Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull DAX updates from Dan Williams: "The completion of Jan's DAX work for 4.10. As I mentioned in the libnvdimm-for-4.10 pull request, these are some final fixes for the DAX dirty-cacheline-tracking invalidation work that was merged through the -mm, ext4, and xfs trees in -rc1. These patches were prepared prior to the merge window, but we waited for 4.10-rc1 to have a stable merge base after all the prerequisites were merged. Quoting Jan on the overall changes in these patches: "So I'd like all these 6 patches to go for rc2. The first three patches fix invalidation of exceptional DAX entries (a bug which is there for a long time) - without these patches data loss can occur on power failure even though user called fsync(2). The other three patches change locking of DAX faults so that ->iomap_begin() is called in a more relaxed locking context and we are safe to start a transaction there for ext4" These have received a build success notification from the kbuild robot, and pass the latest libnvdimm unit tests. There have not been any -next releases since -rc1, so they have not appeared there" * 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: ext4: Simplify DAX fault path dax: Call ->iomap_begin without entry lock during dax fault dax: Finish fault completely when loading holes dax: Avoid page invalidation races and unnecessary radix tree traversals mm: Invalidate DAX radix tree entries only if appropriate ext2: Return BH_New buffers for zeroed blocks
Diffstat (limited to 'net/wireless/wext-spy.c')