linux-toradex.git/drivers/mtd/ubi, branch v4.1.10

UBI: block: Add missing cache flushes

2015-05-06T20:52:22+00:00

Block drivers are responsible for calling flush_dcache_page() on each
BIO request. This operation keeps the I$ coherent with the D$ on
architectures that don't have hardware coherency support. Without this
flush, random crashes are seen when executing user programs from an ext4
filesystem backed by a ubiblock device.

This patch is based on the change implemented in commit 2d4dc890b5c8
("block: add helpers to run flush_dcache_page() against a bio and a
request's pages").

Fixes: 9d54c8a33eec ("UBI: R/O block driver on top of UBI volumes")
Signed-off-by: Kevin Cernekee 
Signed-off-by: Ezequiel Garcia 
Signed-off-by: Richard Weinberger

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2015-04-27T00:22:07+00:00

Pull fourth vfs update from Al Viro:
 "d_inode() annotations from David Howells (sat in for-next since before
  the beginning of merge window) + four assorted fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  RCU pathwalk breakage when running into a symlink overmounting something
  fix I_DIO_WAKEUP definition
  direct-io: only inc/dec inode->i_dio_count for file systems
  fs/9p: fix readdir()
  VFS: assorted d_backing_inode() annotations
  VFS: fs/inode.c helpers: d_inode() annotations
  VFS: fs/cachefiles: d_backing_inode() annotations
  VFS: fs library helpers: d_inode() annotations
  VFS: assorted weird filesystems: d_inode() annotations
  VFS: normal filesystems (and lustre): d_inode() annotations
  VFS: security/: d_inode() annotations
  VFS: security/: d_backing_inode() annotations
  VFS: net/: d_inode() annotations
  VFS: net/unix: d_backing_inode() annotations
  VFS: kernel/: d_inode() annotations
  VFS: audit: d_backing_inode() annotations
  VFS: Fix up some ->d_inode accesses in the chelsio driver
  VFS: Cachefiles should perform fs modifications on the top layer only
  VFS: AF_UNIX sockets should call mknod on the top layer only

VFS: assorted d_backing_inode() annotations

2015-04-15T19:06:59+00:00

Signed-off-by: David Howells 
Signed-off-by: Al Viro

UBI: power cut emulation for testing

2015-04-13T19:05:17+00:00

Emulate random power cuts by switching device to ro after a number of
writes to allow simple power cut testing with nand-sim.

Maximum and minimum number of successful writes before power cut and
what kind of writes (EC header, VID header or none) to interrupt
configurable via debugfs.

Signed-off-by: David Oberhollenzer 
Signed-off-by: Richard Weinberger

UBI: Fastmap: Fall back to scanning mode after ECC error

2015-03-26T22:03:15+00:00

If we encounter an uncorrectable ECC error while scanning for the fastmap
UBI must not fail hard. Instead fall back to scanning mode.

Reported-by: Alexander Block 
Signed-off-by: Richard Weinberger

UBI: Fastmap: Remove is_fm_block()

2015-03-26T21:47:38+00:00

This function was added to fastmap in a very early stage
to have paranoid assertions.
With the current fastmap implementation this assert will never
trigger as fastmap PEBs are not seen by the WL sub-system.
Remove it to save us some CPU cycles.

Signed-off-by: Richard Weinberger

UBI: Fastmap: Add blank line after declarations

2015-03-26T21:47:37+00:00

Another checkpatch complaint:
WARNING: Missing a blank line after declarations

Signed-off-by: Richard Weinberger

UBI: Fastmap: Remove else after return.

2015-03-26T21:47:37+00:00

checkpatch.pl complains:
WARNING: else is not generally useful after a break or return

Signed-off-by: Richard Weinberger

UBI: Fastmap: Introduce may_reserve_for_fm()

2015-03-26T21:47:36+00:00

...and kill another #ifdef.

Signed-off-by: Richard Weinberger

UBI: Fastmap: Introduce ubi_fastmap_init()

2015-03-26T21:47:36+00:00

...and kill another #ifdef in wl.c. :-)

Signed-off-by: Richard Weinberger