linux/fs/gfs2, branch v3.4.23

tmpfs,ceph,gfs2,isofs,reiserfs,xfs: fix fh_len checking

2012-10-21T16:27:57Z

commit 35c2a7f4908d404c9124c2efc6ada4640ca4d5d5 upstream. Fuzzing with trinity oopsed on the 1st instruction of shmem_fh_to_dentry(), u64 inum = fid->raw[2]; which is unhelpfully reported as at the end of shmem_alloc_inode(): BUG: unable to handle kernel paging request at ffff880061cd3000 IP: [] shmem_alloc_inode+0x40/0x40 Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC Call Trace: [] ? exportfs_decode_fh+0x79/0x2d0 [] do_handle_open+0x163/0x2c0 [] sys_open_by_handle_at+0xc/0x10 [] tracesys+0xe1/0xe6 Right, tmpfs is being stupid to access fid->raw[2] before validating that fh_len includes it: the buffer kmalloc'ed by do_sys_name_to_handle() may fall at the end of a page, and the next page not be present. But some other filesystems (ceph, gfs2, isofs, reiserfs, xfs) are being careless about fh_len too, in fh_to_dentry() and/or fh_to_parent(), and could oops in the same way: add the missing fh_len checks to those. Reported-by: Sasha Levin Signed-off-by: Hugh Dickins Cc: Al Viro Cc: Sage Weil Cc: Steven Whitehouse Cc: Christoph Hellwig Signed-off-by: Al Viro Signed-off-by: Greg Kroah-Hartman

GFS2: Instruct DLM to avoid queue convert slowdown

2012-04-24T12:26:50Z

This patch instructs DLM to prevent an "in place" conversion, where the lock just stays on the granted queue, and instead forces the conversion to the back of the convert queue. This is done on upward conversions only. This is useful in cases where, for example, a lock is frequently needed in PR on one node, but another node needs it temporarily in EX to update it. This may happen, for example, when the rindex is being updated by gfs2_grow. The gfs2_grow needs to have the lock in EX, but the other nodes need to re-read it to retrieve the updates. The glock is already granted in PR on the non-growing nodes, so this prevents them from continually re-granting the lock in PR, and forces the EX from gfs2_grow to go through. Signed-off-by: Bob Peterson Signed-off-by: Steven Whitehouse

Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-fixes

2012-04-11T18:04:45Z

Pull GFS2 fixes from Steven Whitehouse * git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-fixes: GFS2: Allow caching of rindex glock GFS2: Make sure rindex is uptodate before starting transactions GFS2: use depends instead of select in kconfig GFS2: put glock reference in error patch of read_rindex_entry

GFS2: Allow caching of rindex glock

2012-04-10T12:49:53Z

This patch allows caching of the rindex glock. We were previously setting the GL_NOCACHE bit when the glock was released. That forced the rindex inode to be invalidated, which caused us to re-read rindex at the next access. However, it caused the glock to be unnecessarily bounced around the cluster. This patch allows the glock to remain cached, but it still causes the rindex to be re-read once it has been written to by gfs2_grow. Ben and I have tested single-node gfs2_grow cases and I've tested clustered gfs2_grow cases on my four-node cluster. Signed-off-by: Bob Peterson Signed-off-by: Steven Whitehouse

GFS2: Make sure rindex is uptodate before starting transactions

2012-04-05T09:20:10Z

This patch removes the call from gfs2_blk2rgrd to function gfs2_rindex_update and replaces it with individual calls. The former way turned out to be too problematic. Signed-off-by: Bob Peterson Signed-off-by: Steven Whitehouse

get rid of pointless includes of ext2_fs.h

2012-03-31T20:03:15Z

Signed-off-by: Al Viro

GFS2: use depends instead of select in kconfig

2012-03-26T08:18:02Z

Avoids having to duplicate the dependencies of what is 'select'ed (and on down...) Those dependencies are currently incomplete, leading to broken builds with GFS2_FS_LOCKING_DLM=y and IP_SCTP=n. Signed-off-by: Benjamin Poirier Signed-off-by: Steven Whitehouse

GFS2: put glock reference in error patch of read_rindex_entry

2012-03-26T08:16:56Z

This patch fixes the error path of function read_rindex_entry so that it correctly gives up its glock reference in cases where there is a race to re-read the rindex after gfs2_grow. Signed-off-by: Bob Peterson Signed-off-by: Steven Whitehouse

Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-nmw

2012-03-22T01:00:03Z

Pull gfs2 changes from Steven Whitehouse. * git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-nmw: GFS2: Change truncate page allocation to be GFP_NOFS GFS2: call gfs2_write_alloc_required for each chunk GFS2: Clean up log flush header writing GFS2: Remove a __GFP_NOFAIL allocation GFS2: Flush pending glock work when evicting an inode GFS2: make sure rgrps are up to date in func gfs2_blk2rgrpd GFS2: Eliminate sd_rindex_mutex GFS2: Unlock rindex mutex on glock error GFS2: Make bd_cmp() static GFS2: Sort the ordered write list GFS2: FITRIM ioctl support GFS2: Move two functions from log.c to lops.c GFS2: glock statistics gathering

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2012-03-21T20:36:41Z

Pull vfs pile 1 from Al Viro: "This is _not_ all; in particular, Miklos' and Jan's stuff is not there yet." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (64 commits) ext4: initialization of ext4_li_mtx needs to be done earlier debugfs-related mode_t whack-a-mole hfsplus: add an ioctl to bless files hfsplus: change finder_info to u32 hfsplus: initialise userflags qnx4: new helper - try_extent() qnx4: get rid of qnx4_bread/qnx4_getblk take removal of PF_FORKNOEXEC to flush_old_exec() trim includes in inode.c um: uml_dup_mmap() relies on ->mmap_sem being held, but activate_mm() doesn't hold it um: embed ->stub_pages[] into mmu_context gadgetfs: list_for_each_safe() misuse ocfs2: fix leaks on failure exits in module_init ecryptfs: make register_filesystem() the last potential failure exit ntfs: forgets to unregister sysctls on register_filesystem() failure logfs: missing cleanup on register_filesystem() failure jfs: mising cleanup on register_filesystem() failure make configfs_pin_fs() return root dentry on success configfs: configfs_create_dir() has parent dentry in dentry->d_parent configfs: sanitize configfs_create() ...