linux-toradex.git/fs/ceph/inode.c, branch v3.1

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client

2011-07-26T20:38:50+00:00

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (23 commits)
  ceph: document unlocked d_parent accesses
  ceph: explicitly reference rename old_dentry parent dir in request
  ceph: document locking for ceph_set_dentry_offset
  ceph: avoid d_parent in ceph_dentry_hash; fix ceph_encode_fh() hashing bug
  ceph: protect d_parent access in ceph_d_revalidate
  ceph: protect access to d_parent
  ceph: handle racing calls to ceph_init_dentry
  ceph: set dir complete frag after adding capability
  rbd: set blk_queue request sizes to object size
  ceph: set up readahead size when rsize is not passed
  rbd: cancel watch request when releasing the device
  ceph: ignore lease mask
  ceph: fix ceph_lookup_open intent usage
  ceph: only link open operations to directory unsafe list if O_CREAT|O_TRUNC
  ceph: fix bad parent_inode calc in ceph_lookup_open
  ceph: avoid carrying Fw cap during write into page cache
  libceph: don't time out osd requests that haven't been received
  ceph: report f_bfree based on kb_avail rather than diffing.
  ceph: only queue capsnap if caps are dirty
  ceph: fix snap writeback when racing with writes
  ...

ceph: document locking for ceph_set_dentry_offset

2011-07-26T18:31:08+00:00

Reviewed-by: Yehuda Sadeh 
Signed-off-by: Sage Weil

ceph: protect access to d_parent

2011-07-26T18:30:29+00:00

d_parent is protected by d_lock: use it when looking up a dentry's parent
directory inode.  Also take a reference and drop it in the caller to avoid
a use-after-free.

Reported-by: Al Viro 
Reviewed-by: Yehuda Sadeh 
Signed-off-by: Sage Weil

ceph: set dir complete frag after adding capability

2011-07-26T18:30:02+00:00

Curretly ceph_add_cap clears the complete bit if we are newly issued the
FILE_SHARED cap, which is normally the case for a newly issue cap on a new
directory.  That means we clear the just-set bit.  Move the check that sets
the flag to after the cap is added/updated.

Reviewed-by: Yehuda Sadeh 
Signed-off-by: Sage Weil

ceph: ignore lease mask

2011-07-26T18:28:25+00:00

The lease mask is no longer used (and it changed a while back).  Instead,
use a non-zero duration to indicate that there is a lease being issued.

Reviewed-by: Yehuda Sadeh 
Signed-off-by: Sage Weil

->permission() sanitizing: don't pass flags to ->permission()

2011-07-20T05:43:24+00:00

not used by the instances anymore.

Signed-off-by: Al Viro

->permission() sanitizing: don't pass flags to generic_permission()

2011-07-20T05:43:22+00:00

redundant; all callers get it duplicated in mask & MAY_NOT_BLOCK and none of
them removes that bit.

Signed-off-by: Al Viro

kill check_acl callback of generic_permission()

2011-07-20T05:43:16+00:00

its value depends only on inode and does not change; we might as
well store it in ->i_op->check_acl and be done with that.

Signed-off-by: Al Viro

ceph: use ihold when we already have an inode ref

2011-06-08T04:34:11+00:00

We should use ihold whenever we already have a stable inode ref, even
when we aren't holding i_lock.  This avoids adding new and unnecessary
locking dependencies.

Signed-off-by: Sage Weil

ceph: do not use i_wrbuffer_ref as refcount for Fb cap

2011-05-11T17:44:48+00:00

We increments i_wrbuffer_ref when taking the Fb cap. This breaks
the dirty page accounting and causes looping in
__ceph_do_pending_vmtruncate, and ceph client hangs.

This bug can be reproduced occasionally by running blogbench.

Add a new field i_wb_ref to inode and dedicate it to Fb reference
counting.

Signed-off-by: Henry C Chang 
Signed-off-by: Sage Weil