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61600ef848
linux/fs/ceph
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Yan, Zheng 61600ef848 ceph: check PG_Private flag before accessing page->private 
I got lots of NULL pointer dereference Oops when compiling kernel on ceph.
The bug is because the kernel page migration routine replaces some pages
in the page cache with new pages, these new pages' private can be non-zero.

Signed-off-by: Zheng Yan <zheng.z.yan@intel.com>
Signed-off-by: Sage Weil <sage@inktank.com>
(cherry picked from commit 28c0254ede)
2012-06-20 07:43:48 -05:00
..
addr.c ceph: check PG_Private flag before accessing page->private 2012-06-20 07:43:48 -05:00
caps.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client 2012-02-02 15:47:33 -08:00
ceph_frag.c ceph: factor out libceph from Ceph file system 2010-10-20 15:37:28 -07:00
debugfs.c ceph: explicitly reference rename old_dentry parent dir in request 2011-07-26 11:31:14 -07:00
dir.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client 2012-02-02 15:47:33 -08:00
export.c ceph: move encode_fh to new API 2012-05-29 23:28:33 -04:00
file.c ceph: drop support for preferred_osd pgs 2012-05-07 15:33:36 -07:00
inode.c ceph: avoid panic with mismatched symlink sizes in fill_inode() 2012-03-22 10:47:45 -05:00
ioctl.c ceph: ignore preferred_osd field 2012-05-16 14:28:28 -05:00
ioctl.h ceph: fully initialize new layout 2012-05-16 14:28:27 -05:00
Kconfig ceph: factor out libceph from Ceph file system 2010-10-20 15:37:28 -07:00
locks.c ceph: unwind canceled flock state 2011-06-07 21:36:45 -07:00
Makefile ceph: Makefile: Remove unnessary code 2011-01-12 15:15:13 -08:00
mds_client.c ceph: use info returned by get_authorizer 2012-05-17 08:18:13 -05:00
mds_client.h ceph: define ceph_auth_handshake type 2012-05-17 08:18:12 -05:00
mdsmap.c ceph: factor out libceph from Ceph file system 2010-10-20 15:37:28 -07:00
snap.c introduce SIZE_MAX 2012-05-31 17:49:26 -07:00
strings.c ceph: factor out libceph from Ceph file system 2010-10-20 15:37:28 -07:00
super.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client 2012-03-28 10:01:29 -07:00
super.h ceph: avoid repeatedly computing the size of constant vxattr names 2012-03-22 10:47:46 -05:00
xattr.c ceph: drop support for preferred_osd pgs 2012-05-07 15:33:36 -07:00