linux-stable.git/fs/jffs2, branch v4.4

xattr handlers: Pass handler to operations instead of flags

2015-11-14T01:34:32+00:00

The xattr_handler operations are currently all passed a file system
specific flags value which the operations can use to disambiguate between
different handlers; some file systems use that to distinguish the xattr
namespace, for example.  In some oprations, it would be useful to also have
access to the handler prefix.  To allow that, pass a pointer to the handler
to operations instead of the flags value alone.

Signed-off-by: Andreas Gruenbacher 
Reviewed-by: Christoph Hellwig 
Signed-off-by: Al Viro

jffs2: Add missing capability check for listing trusted xattrs

2015-11-14T01:34:30+00:00

The vfs checks if a task has the appropriate access for get and set
operations, but it cannot do that for the list operation; the file system
must check for that itself.

Signed-off-by: Andreas Gruenbacher 
Reviewed-by: Christoph Hellwig 
Cc: David Woodhouse 
Cc: linux-mtd@lists.infradead.org
Signed-off-by: Al Viro

Merge branch 'akpm' (patches from Andrew)

2015-11-07T22:32:45+00:00

Merge second patch-bomb from Andrew Morton:

 - most of the rest of MM

 - procfs

 - lib/ updates

 - printk updates

 - bitops infrastructure tweaks

 - checkpatch updates

 - nilfs2 update

 - signals

 - various other misc bits: coredump, seqfile, kexec, pidns, zlib, ipc,
   dma-debug, dma-mapping, ...

* emailed patches from Andrew Morton : (102 commits)
  ipc,msg: drop dst nil validation in copy_msg
  include/linux/zutil.h: fix usage example of zlib_adler32()
  panic: release stale console lock to always get the logbuf printed out
  dma-debug: check nents in dma_sync_sg*
  dma-mapping: tidy up dma_parms default handling
  pidns: fix set/getpriority and ioprio_set/get in PRIO_USER mode
  kexec: use file name as the output message prefix
  fs, seqfile: always allow oom killer
  seq_file: reuse string_escape_str()
  fs/seq_file: use seq_* helpers in seq_hex_dump()
  coredump: change zap_threads() and zap_process() to use for_each_thread()
  coredump: ensure all coredumping tasks have SIGNAL_GROUP_COREDUMP
  signal: remove jffs2_garbage_collect_thread()->allow_signal(SIGCONT)
  signal: introduce kernel_signal_stop() to fix jffs2_garbage_collect_thread()
  signal: turn dequeue_signal_lock() into kernel_dequeue_signal()
  signals: kill block_all_signals() and unblock_all_signals()
  nilfs2: fix gcc uninitialized-variable warnings in powerpc build
  nilfs2: fix gcc unused-but-set-variable warnings
  MAINTAINERS: nilfs2: add header file for tracing
  nilfs2: add tracepoints for analyzing reading and writing metadata files
  ...

signal: remove jffs2_garbage_collect_thread()->allow_signal(SIGCONT)

2015-11-07T01:50:42+00:00

jffs2_garbage_collect_thread() does allow_signal(SIGCONT) for no reason,
SIGCONT will wake a stopped task up even if it is ignored.

Signed-off-by: Oleg Nesterov 
Reviewed-by: Tejun Heo 
Cc: David Woodhouse 
Cc: Felipe Balbi 
Cc: Markus Pargmann 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

signal: introduce kernel_signal_stop() to fix jffs2_garbage_collect_thread()

2015-11-07T01:50:42+00:00

jffs2_garbage_collect_thread() can race with SIGCONT and sleep in
TASK_STOPPED state after it was already sent. Add the new helper,
kernel_signal_stop(), which does this correctly.

Signed-off-by: Oleg Nesterov 
Reviewed-by: Tejun Heo 
Cc: David Woodhouse 
Cc: Felipe Balbi 
Cc: Markus Pargmann 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

signal: turn dequeue_signal_lock() into kernel_dequeue_signal()

2015-11-07T01:50:42+00:00

1. Rename dequeue_signal_lock() to kernel_dequeue_signal(). This
   matches another "for kthreads only" kernel_sigaction() helper.

2. Remove the "tsk" and "mask" arguments, they are always current
   and current->blocked. And it is simply wrong if tsk != current.

3. We could also remove the 3rd "siginfo_t *info" arg but it looks
   potentially useful. However we can simplify the callers if we
   change kernel_dequeue_signal() to accept info => NULL.

4. Remove _irqsave, it is never called from atomic context.

Signed-off-by: Oleg Nesterov 
Reviewed-by: Tejun Heo 
Cc: David Woodhouse 
Cc: Felipe Balbi 
Cc: Markus Pargmann 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

fs/jffs2/wbuf.c: remove stray semicolon

2015-11-07T01:50:42+00:00

Reported-by: Wu Fengguang 
Cc: Sasha Levin 
Cc: David Woodhouse 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

jffs2: fix a memleak in read_direntry()

2015-10-04T21:30:50+00:00

Need to free the memory allocated for 'fd' if failed to read all
of the remainder name.

Signed-off-by: Wei Fang 
Signed-off-by: Brian Norris

jffs2: remove unneeded kfree

2015-09-29T01:41:07+00:00

c->oobbuf hasn't been kmalloced in jffs2_dataflash_setup, so
there is no need to free it.

Signed-off-by: Wei Fang 
Signed-off-by: Brian Norris

jffs2: remove unnecessary new_valid_dev check

2015-09-28T23:19:16+00:00

As new_valid_dev always returns 1, so !new_valid_dev check is not
needed, remove it.

Signed-off-by: Yaowei Bai 
Signed-off-by: Brian Norris