similar to: [GIT PULL] ocfs2 fixes for 2.6.36.

This set of patches includes a few dlm related fixes from Kurt, and a small, trivial cleanup by Adrian. Also included are three disk allocation patches by me - two fixes and one incremental improvement in our allocation strategy. These have been around since early June, so I think they've had enough testing that they can go upstream. Please pull from 'upstream-linus' branch of

fs/ocfs2/dir.c: In function ?ocfs2_extend_dir?: fs/ocfs2/dir.c:2700: warning: ?ret? may be used uninitialized in this function fs/ocfs2/suballoc.c: In function ?ocfs2_get_suballoc_slot_bit?: fs/ocfs2/suballoc.c:2216: warning: comparison is always true due to limited range of data type Signed-off-by: Tao Ma <tao.ma at oracle.com> --- fs/ocfs2/dir.c | 2 +- fs/ocfs2/suballoc.c |

Linus et al, Here are the ocfs2 updates for 2.6.35. There are two major changes. Mark added allocation reservations to our node-local allocators. This gets us much more contiguousness when many processes are growing files in parallel. On the other end of contiguousness, ocfs2 has had a major limitation since the beginning. When ocfs2 needs new inodes, it has always grown its metadata

Folks, To keep track of what we want to upstream in the 2.6.28-rc cycle, I've put together a branch called 'xattr-28' with almost all of the patches merged. You can see it and pull it from my linux-2.6.git repository. View: http://oss.oracle.com/git/?p=jlbec/linux-2.6.git;a=shortlog;h=xattr-28 Pull: git://oss.oracle.com/git/jlbec/linux-2.6.git xattr-28 The branch contains the

What we were doing before was to ask for the current window size as the maximum allocation. This had the effect of limiting the amount of allocation we could get for the local alloc during times when the window size was shrunk due to fragmentation. In some cases, that could actually *increase* fragmentation by artificially limiting the number of bits we can accept. So while we still want to ask

In ocfs2_add_branch, we use the rightmost rec of the leaf extent block to generate the e_cpos for the new added branch. In the most case, it is OK but if there is a gap between the the root(or branch) 's rightmost rec and the leaf, it will cause kernel panic if we insert some clusters in it. The message is something like: (7445,1):ocfs2_insert_at_leaf:3775 ERROR: bug expression:

In ocfs2, the inode block search looks for the "emptiest" inode group to allocate from. So if an inode alloc file has many equally (or almost equally) empty groups, new inodes will tend to get spread out amongst them, which in turn can put them all over the disk. This is undesirable because directory operations on conceptually "nearby" inodes force a large number of seeks. So

Linus, et al, Here are the ocfs2 changes for 2.6.37. There are three major additions. Tao Ma has added readahead to our CoW operations. Sunil Mushran has added a global heartbeat mode, allowing one device heartbeat to support multiple ocfs2 mounts. Finally, Patrick J. LoPresti has done the final work to enable ocfs2 mounts on devices larger than 16TB. The ocfs2 disk format has always

Linus et al, Here is the second batch of ocfs2 changes for 2.6.36. We've ironed out all of the ordering with the extN/jbd2 folks, and they have stewed for a little as well. There's nothing large in here. ocfs2 has long supported devices larger than 2^32 sectors in the code; we now toggle that capability on. Tao has added readahead to our CoW operations. We also have one more ECC fix

Hi Mark/Joel, I meet with some meta allocation bugs when I implement reflink these days. And after some investigation, I think we should have the same problem when we have PAGE_SIZE > CLUSTER_SIZE. So I create a scenario today in one ppc box and try. the box panic as I expected. ;) The scenario is that: Create a file with the disk layout like this(with bs=512, and cs=4K). debugfs: stat

These patches comprise the bulk of our outstanding changes for Ocfs2 and Configfs. Configfs gets some lockdep updates, and we remove it's EXPERIMENTAL tag as things have been quite stable for some time now. Ocfs2 gets fixes that made it in too late for 2.6.24, and several new features. The most interesting are listed below: We've been on the path to removing the "vote"

#against V6.2, add indentation. For nfs exporting, ocfs2_get_dentry() returns the dentry for fh. ocfs2_get_dentry() may read from disk(when inode not in memory) without any cross cluster lock. this leads to load a stale inode. this patch fixes above problem. solution is that in case of inode is not in memory, we get the cluster lock(PR) of alloc inode where the inode in question is allocated

#against V6, corrects some format problem pointed out by checkpatch.pl. For nfs exporting, ocfs2_get_dentry() returns the dentry for fh. ocfs2_get_dentry() may read from disk(when inode not in memory) without any cross cluster lock. this leads to load a stale inode. this patch fixes above problem. solution is that in case of inode is not in memory, we get the cluster lock(PR) of alloc inode

Back porting from mainline. For nfs exporting, ocfs2_get_dentry() returns the dentry for fh. ocfs2_get_dentry() may read from disk(when inode not in memory) without any cross cluster lock. this leads to load a stale inode. this patch fixes above problem. solution is that in case of inode is not in memory, we get the cluster lock(PR) of alloc inode where the inode in question is allocated

Two tiny cleanup for allocation reservation. 1. Remove some extra codes in ocfs2_local_alloc_find_clear_bits. 2. Remove an unuseful variables in ocfs2_find_resv_lhs. Cc: Mark Fasheh <mfasheh at suse.com> Signed-off-by: Tao Ma <tao.ma at oracle.com> --- fs/ocfs2/localalloc.c | 7 ++----- fs/ocfs2/reservations.c | 2 -- 2 files changed, 2 insertions(+), 7 deletions(-) diff

The old %llu vs u64 battle. Cast them correctly. Signed-off-by: Joel Becker <joel.becker at oracle.com> --- fs/ocfs2/export.c | 9 +++++---- fs/ocfs2/suballoc.c | 19 ++++++++++++------- 2 files changed, 17 insertions(+), 11 deletions(-) diff --git a/fs/ocfs2/export.c b/fs/ocfs2/export.c index de3da8e..15713cb 100644 --- a/fs/ocfs2/export.c +++ b/fs/ocfs2/export.c @@ -100,7 +100,8

Linus, et al, Here are the outstanding ocfs2 fixes we have for 2.6.30. The important ones are journal credit fixes for the new indexed directories. There's also MAINTAINERS update for my ocfs2 git tree. Please pull. Joel The following changes since commit 612392307cb09e49051225092cbbd7049bd8db93: Ryusuke Konishi (1): nilfs2: support nanosecond timestamp are available in the

From: "Xiaowei.Hu" <xiaowei.hu at oracle.com> ocfs2_block_group_alloc_discontig() disables chain relink by setting ac->ac_allow_chain_relink = 0 because it grabs clusters from multiple cluster groups. It doesn't keep the credits for all chain relink,but ocfs2_claim_suballoc_bits overrides this in this call trace:

In reflink we update the id info in the disk but forget to update the corresponding information in the VFS inode. So update them accordingly in case we want to preserve the attributes. Reported-by: Jeff Liu <jeff.liu at oracle.com> Signed-off-by: Tao Ma <tao.ma at oracle.com> --- fs/ocfs2/refcounttree.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git

For nfs exporting, ocfs2_get_dentry() returns the dentry for fh. ocfs2_get_dentry() may read from disk(when inode not in memory) without any cross cluster lock. this leads to load a stale inode. this patch fixes above problem. solution is that in case of inode is not in memory, we get the cluster lock(PR) of alloc inode where the inode in question is allocated from(this causes node on which