search for: ocfs2_path

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

...acle.com> --- fs/ocfs2/alloc.c | 98 +++++++++++++++++++++++++++++++++++++++++++++++++++-- 1 files changed, 94 insertions(+), 4 deletions(-) diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c index 678a067..7ce5e2f 100644 --- a/fs/ocfs2/alloc.c +++ b/fs/ocfs2/alloc.c @@ -475,6 +475,8 @@ struct ocfs2_path { #define path_leaf_el(_path) ((_path)->p_node[(_path)->p_tree_depth].el) #define path_num_items(_path) ((_path)->p_tree_depth + 1) +static int ocfs2_find_path(struct inode *inode, struct ocfs2_path *path, + u32 cpos); /* * Reset the actual path elements so that we can re-use t...

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

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

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

...changed, 41 insertions(+), 5 deletions(-) diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c index 3331eec..2016ff7 100644 --- a/fs/ocfs2/alloc.c +++ b/fs/ocfs2/alloc.c @@ -2563,15 +2563,39 @@ out_ret_path: return ret; } -static void ocfs2_update_edge_lengths(handle_t *handle, - struct ocfs2_path *path) +static int ocfs2_update_edge_lengths(handle_t *handle, + struct ocfs2_extent_tree *et, + int subtree_index, + struct ocfs2_path *path) { - int i, idx; + int i, idx, ret; struct ocfs2_extent_rec *rec; struct ocfs2_extent_list *el; struct ocfs2_extent_block *eb;...

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

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.

...rtions(+), 1 deletions(-) diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c index 54ff4c7..fcffc54 100644 --- a/fs/ocfs2/alloc.c +++ b/fs/ocfs2/alloc.c @@ -4796,6 +4796,29 @@ out: return ret; } +static int ocfs2_replace_extent_rec(struct inode *inode, + handle_t *handle, + struct ocfs2_path *path, + struct ocfs2_extent_list *el, + int split_index, + struct ocfs2_extent_rec *split_rec) +{ + int ret; + + ret = ocfs2_path_bh_journal_access(handle, inode, path, + path_num_items(path) - 1); + if (ret) { + mlog_errno(ret); + goto out; + } + + el->l_recs[spli...

From: Jie Liu <jeff.liu at oracle.com> Subject: ocfs2: fix a memory leak in __ocfs2_move_extents() The ocfs2 path is not properly freed which leads to a memory leak at __ocfs2_move_extents(). This patch stops the leaks of the ocfs2_path structure. Signed-off-by: Jie Liu <jeff.liu at oracle.com> Reviewed-by: Younger Liu <younger.liu at huawei.com> Cc: Joel Becker <jlbec at evilplan.org> Cc: Mark Fasheh <mfasheh at suse.com> Signed-off-by: Andrew Morton <akpm at linux-foundation.org> --- fs/ocfs2/mov...

Hi Mark/Joel, These are 2 bug fix for b-tree. Please review. I have sent out the first one last week, but it was based on cacheme. So resend it. Now it bases on joel's fixes branch. The second one is another b-tree rotation bug. I guess the reason why we never meet with it is that no one has ever used b-tree like reflink before. ;) Regards, Tao

...s has two consequences. First, it's harder to read. Second, it is less efficient. Sometimes it reads the first and last block of a bucket, when reading and writing all blocks at once is a streaming I/O. This series expands the bucket API in a fashion similar to fs/ocfs2/alloc.c's struct ocfs2_path. The hope is that all bucket operations can use this API and mostly avoid raw buffer_head work. This is also needed for checksums of buckets, as the checksum calculations need to read the entire bucket. Since a 4K contig I/O is just as cheap as a single block, this causes no loss of efficiency....

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