similar to: [PATCH 0/2] Two b-tree bug fixes.

The old extent merging code down underneath "ocfs2_mark_extent_written()" can't merge extents between leaf blocks. This patch resolve this. So that a large unwritten extent which has been split up with a bunch of writes can be merged together once all unwritten regions have been written to. Modification from V1 to V2: 1. Add more comments for some functions which is more complicated

The following series of patches attempts to detach metadata I/O from struct inode. They are currently tied together pretty tightly. Metadata reads happen via the ocfs2_read_blocks() functions, writes via both jbd2 and ocfs2_write_blocks(). - Each inode has a cache of associated metadata blocks stored on its ip_metadata_cache member. The ocfs2_read/write_blocks() functions take a struct

In normal tree rotation left process, we will never touch the tree branch above subtree_index and ocfs2_extend_rotate_transaction doesn't reserve the credits for them either. But when we want to delete the rightmost extent block, we have to update the rightmost records for all the rightmost branch(See ocfs2_update_edge_lengths), so we have to allocate extra credits for them. What's more,

Hi Mark/Joel, This is the v2 of bug fix for ocfs2_add_branch. Modification from V1 to V2: 1. Create a patch which return EROFS instead of BUG in ocfs2_insert_at_leaf. 2. Use ocfs2_adjust_rightmost_records to change the root and extent blocks in the rightmost path. Regards, Tao

The following series of patches comprises the bulk of our outstanding changes for Ocfs2. Aside from the usual set of cleanups and fixes that were inappropriate for 2.6.25, there are a few highlights: The '/sys/o2cb' directory has been moved to '/sys/fs/o2cb'. The new location meshes better with modern sysfs layout. A symbolic link has been placed in the old location so as to

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:

Hi all, So I have finally finished the v3 of reflink for ocfs2. The biggest change is that we support 64bit cluster offset now(Thank Mark and Joel for it). [View] http://oss.oracle.com/git/?p=tma/linux-2.6.git;a=shortlog;h=refcount [Pull] git://oss.oracle.com/git/tma/linux-2.6.git refcount The general information for reflink, please see http://oss.oracle.com/osswiki/OCFS2/DesignDocs/Reflink.

Hi all, So I have finally finished the v1 of reflink for ocfs2. It has some bugs that I am still investigating, but the schema is almost there. So I'd like to send it out first for review. And Tristan and I will continue to work on the stability of the code. The general information for reflink, please see http://oss.oracle.com/osswiki/OCFS2/DesignDocs/Reflink. For the design doc, please

Hi all, Change from v1 to v2: bug fix and metadata/credits reservation improvement. The general information for reflink, please see http://oss.oracle.com/osswiki/OCFS2/DesignDocs/Reflink. For the design doc, please see http://oss.oracle.com/osswiki/OCFS2/DesignDocs/RefcountTrees http://oss.oracle.com/osswiki/OCFS2/DesignDocs/ReflinkOperation

Linus, et al, Here are all the outstanding ocfs2 fixes for 2.6.31. The major fixes are for aio write and for non-sparse file extending. There are also a couple of b-tree fixes as well as some for quotas. Please pull. Joel The following changes since commit 44b572809581d5a10dbe35aa6bf689f32b9c5ad6: Yinghai Lu (1): x86: don't clear nodes_states[N_NORMAL_MEMORY] when numa is not

Hi, we ran into a BUG() in ocfs2_get_clusters_nocache: [Fri Oct 18 10:52:28 2013] ------------[ cut here ]------------ [Fri Oct 18 10:52:28 2013] Kernel BUG at ffffffffa028ad5a [verbose debug info unavailable] [Fri Oct 18 10:52:28 2013] invalid opcode: 0000 [#1] SMP [Fri Oct 18 10:52:28 2013] Modules linked in: vhost_net vhost macvtap macvlan drbd ip6table_filter ip6_tables iptable_filter

--- plugins/vddk/vddk.c | 41 +++++++++++++++++++++++++---------------- TODO | 1 - 2 files changed, 25 insertions(+), 17 deletions(-) diff --git a/plugins/vddk/vddk.c b/plugins/vddk/vddk.c index 87c0d146..d1a3015f 100644 --- a/plugins/vddk/vddk.c +++ b/plugins/vddk/vddk.c @@ -51,6 +51,7 @@ #include "isaligned.h" #include "minmax.h" #include

In __ocfs2_mark_extent_written, when we meet with the situation of c_split_covers_rec, the old solution just replace the extent record and forget to access and dirty the buffer_head. This will cause a problem when the unwritten extent is in an extent block. So access and dirty it. Signed-off-by: Tao Ma <tao.ma at oracle.com> --- fs/ocfs2/alloc.c | 27 ++++++++++++++++++++++++++- 1 files

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

This extends the vector library with an insert function. It is more expensive than appending, but this does not affect existing code using vector and can be used in new places without making those uses more expensive. We use this function in nbdkit-extentlist-filter, nbdkit-eval-plugin and the sparse library. This is refactoring, so should not affect functionality at all. However during the

Btrfs has always had these filler extent data items for holes in inodes. This has made somethings very easy, like logging hole punches and sending hole punches. However for large holey files these extent data items are pure overhead. So add an incompatible feature to no longer add hole extents to reduce the amount of metadata used by these sort of files. This has a few changes for logging and

The following patches implement indexed directory support in Ocfs2, mostly according to the design doc I wrote up a while ago: http://oss.oracle.com/osswiki/OCFS2/DesignDocs/IndexedDirectories The patches have been rebased on top of 2.6.29-rc2. It should be trivial to put them into merge_window. Things are what I'd call complete now. I'd like to get these into the merge_window branch

Hi, The following patches comprise the bulk of Ocfs2 updates for the 2.6.30 merge window. Aside from larger, more involved fixes, we're adding the following features, which I will describe in the order their patches are mailed. Sunil's exported some more state to our debugfs files, and consolidated some other aspects of our debugfs infrastructure. This will further aid us in debugging