[PATCH 0/9] gfs2: Bugs in "Use GL_NOBLOCK flag for non-blocking lookups"

[Andreas Gruenbacher <agruenba@redhat.com>]

Hello,

Al Viro has reported issues with commit dd00aaeb3432 ("gfs2: Use
GL_NOBLOCK flag for non-blocking lookups"):

* First, parent can now be NULL and dereferencing it in
  gfs2_dir_check(d_inode(parent), &dentry->d_name, ip) isn't going to
  work;

* Second, gfs2_dir_check() can still sleep, which breaks LOOKUP_RCU
  mode.

These patches should fix both of these problems.  We'll either need
these fixes added, or commit dd00aaeb3432 reverted for now.

Thanks,
Andreas

Andreas Gruenbacher (9):
  gfs2: Fix gfs2_drevalidate NULL pointer dereference
  gfs2: Pass FGP flags to gfs2_getbuf
  gfs2: Split gfs2_meta_read_async off from gfs2_meta_read
  gfs2: Add FGP_NOWAIT support to gfs2_meta_read_async
  gfs2: Pass FGP flags to gfs2_meta_{,inode_}buffer
  gfs2: Pass FGP flags to gfs2_dirent_search
  gfs2: Pass FGP flags to gfs2_dir_check
  gfs2: Minor gfs2_drevalidate cleanup
  gfs2: Fix LOOKUP_RCU support in gfs2_drevalidate

 fs/gfs2/aops.c       |   4 +-
 fs/gfs2/bmap.c       |  21 ++++----
 fs/gfs2/dentry.c     |  32 ++++++++-----
 fs/gfs2/dir.c        |  52 +++++++++++---------
 fs/gfs2/dir.h        |   2 +-
 fs/gfs2/file.c       |   4 +-
 fs/gfs2/glops.c      |   2 +-
 fs/gfs2/incore.h     |   1 -
 fs/gfs2/inode.c      |  10 ++--
 fs/gfs2/meta_io.c    | 112 ++++++++++++++++++++++++++++---------------
 fs/gfs2/meta_io.h    |  15 +++---
 fs/gfs2/ops_fstype.c |   4 +-
 fs/gfs2/quota.c      |   2 +-
 fs/gfs2/recovery.c   |   2 +-
 fs/gfs2/rgrp.c       |   5 +-
 fs/gfs2/super.c      |   6 +--
 fs/gfs2/xattr.c      |  17 ++++---
 17 files changed, 173 insertions(+), 118 deletions(-)

-- 
2.43.0