[git pull] more vfs.git stuff

[Al Viro]

[trying to use git request-pull; result looks more or less sane, AFAICT...]
Embarrassing braino fix + pipe page accounting + fixing an eyesore in
find_filesystem() (checking that s1 is equal to prefix of s2 of given length
can be done in many ways, but "compare strlen(s1) with length and then do
strncmp()" is not a good one...)

The following changes since commit c7b6c5fe67d1519759de2014a2c44f50fb1426f3:

  Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs (2016-01-15 12:41:32 -0800)

are available in the git repository at:

  gitolite@xxxxxxxxxxxxx:/pub/scm/linux/kernel/git/viro/vfs.git for-linus

for you to fetch changes up to 117aa41e8020fe493bbb677ebe828c3a4b380185:

  [regression] fix braino in fs/dlm/user.c (2016-01-21 17:45:15 -0500)

----------------------------------------------------------------
Al Viro (2):
      find_filesystem(): simplify comparison
      [regression] fix braino in fs/dlm/user.c

Willy Tarreau (1):
      pipe: limit the per-user amount of pages allocated in pipes

 Documentation/sysctl/fs.txt | 23 ++++++++++++++++++++++
 fs/dlm/user.c               |  2 +-
 fs/filesystems.c            |  6 +++---
 fs/pipe.c                   | 47 +++++++++++++++++++++++++++++++++++++++++++--
 include/linux/pipe_fs_i.h   |  4 ++++
 include/linux/sched.h       |  1 +
 kernel/sysctl.c             | 14 ++++++++++++++
 7 files changed, 91 insertions(+), 6 deletions(-)