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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

...+++++++++++++++++++++++++++++++++ fs/ocfs2/localalloc.h | 6 ++++++ 3 files changed, 81 insertions(+), 3 deletions(-) diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c index 17e6bdd..36c1b71 100644 --- a/fs/ocfs2/alloc.c +++ b/fs/ocfs2/alloc.c @@ -4742,6 +4742,7 @@ int ocfs2_add_clusters_in_btree(handle_t *handle, enum ocfs2_alloc_restarted *reason_ret) { int status = 0, err = 0; + int need_free = 0; int free_extents; enum ocfs2_alloc_restarted reason = RESTART_NONE; u32 bit_off, num_bits; @@ -4796,7 +4797,8 @@ int ocfs2_add_clusters_in_btree(handle_t *handle, OCFS2_JOURNAL...

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...+++++++++++++++++++++++++++++++++ fs/ocfs2/localalloc.h | 6 ++++++ 3 files changed, 81 insertions(+), 3 deletions(-) diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c index 17e6bdd..36c1b71 100644 --- a/fs/ocfs2/alloc.c +++ b/fs/ocfs2/alloc.c @@ -4742,6 +4742,7 @@ int ocfs2_add_clusters_in_btree(handle_t *handle, enum ocfs2_alloc_restarted *reason_ret) { int status = 0, err = 0; + int need_free = 0; int free_extents; enum ocfs2_alloc_restarted reason = RESTART_NONE; u32 bit_off, num_bits; @@ -4796,7 +4797,8 @@ int ocfs2_add_clusters_in_btree(handle_t *handle, OCFS2_JOURNAL...

...+++++++++++++++++++++----- 1 files 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...

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

...d > EXT3_MAX_TRANS_DATA) + needed = EXT3_MAX_TRANS_DATA; + + return EXT3_DATA_TRANS_BLOCKS + needed; +} + /* * Truncate transactions can be complex and absolutely huge. So we need to * be able to restart the transaction at a conventient checkpoint to make @@ -100,14 +128,9 @@ static handle_t *start_transaction(struct inode *inode) { - long needed; handle_t *result; - needed = inode->i_blocks; - if (needed > EXT3_MAX_TRANS_DATA) - needed = EXT3_MAX_TRANS_DATA; - - result = ext3_journal_start(inode, EXT3_DATA_TRANS_BLOCKS + needed); + result = ext3_journal_start(inode, bl...

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.

...counttree.c | 10 +++++++++- 1 files changed, 9 insertions(+), 1 deletions(-) diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c index 1cf9cda..e082623 100644 --- a/fs/ocfs2/refcounttree.c +++ b/fs/ocfs2/refcounttree.c @@ -2921,7 +2921,7 @@ static int ocfs2_duplicate_clusters_by_page(handle_t *handle, struct super_block *sb = ocfs2_metadata_cache_get_super(ci); u64 new_block = ocfs2_clusters_to_blocks(sb, new_cluster); struct page *page; - pgoff_t page_index; + pgoff_t page_index, last_page; unsigned int from, to; loff_t offset, end, map_end; struct address_space *mapping =...

...+ * If we have fewer than thresh credits, extend by OCFS2_MAX_TRANS_DATA. + * If that fails, restart the transaction & regain write access for the + * buffer head which is used for metadata modifications. + * Taken from Ext4: extend_or_restart_transaction() + */ +int ocfs2_allocate_extend_trans(handle_t *handle, int thresh) +{ + int status, old_nblks; + + BUG_ON(!handle); + + old_nblks = handle->h_buffer_credits; + trace_ocfs2_allocate_extend_trans(old_nblks, thresh); + + if (old_nblks < thresh) + return 0; + + status = jbd2_journal_extend(handle, OCFS2_MAX_TRANS_DATA); + if (status < 0)...

ocfs2 currently uses the Journaled Block Device (JBD) for its journaling. This is a very stable and tested codebase. However, JBD is limited by architecture to 32bit block numbers. This means an ocfs2 filesystem is limited to 2^32 blocks. With a 4K blocksize, that's 16TB. People want larger volumes. Fortunately, there is now JBD2. JBD2 adds 64bit block number support and some other

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

...with same hash value is stored in the same + * bucket. If all the xattrs in this bucket has the same hash + * value, the new bucket will be initialized as an empty one + * and the first_hash will be initialized as (hash_value+1). */ -static int ocfs2_half_xattr_bucket(struct inode *inode, - handle_t *handle, - u64 blk, - u64 new_blk, - u32 *first_hash, - int new_bucket_head) +static int ocfs2_divide_xattr_bucket(struct inode *inode, + handle_t *handle, + u64 blk, + u64 new_blk, + u32 *first_hash, + int new_bucket_head) { int ret, i;...

...html --- fs/ocfs2/move_extents.c | 10 ---------- 1 file changed, 10 deletions(-) diff --git a/fs/ocfs2/move_extents.c b/fs/ocfs2/move_extents.c index 192cad0662d8..6251748c695b 100644 --- a/fs/ocfs2/move_extents.c +++ b/fs/ocfs2/move_extents.c @@ -105,14 +105,6 @@ static int __ocfs2_move_extent(handle_t *handle, */ replace_rec.e_flags = ext_flags & ~OCFS2_EXT_REFCOUNTED; - ret = ocfs2_journal_access_di(handle, INODE_CACHE(inode), - context->et.et_root_bh, - OCFS2_JOURNAL_ACCESS_WRITE); - if (ret) { - mlog_errno(ret); - goto out; - } - ret = ocfs2_split_extent(ha...

..., { int ret; + mlog_entry("(%llu, %lu, %u, %u)\n", + (unsigned long long)OCFS2_I(inode)->ip_blkno, page->index, + from, to); + ret = block_prepare_write(page, from, to, ocfs2_get_block); + mlog_exit(ret); return ret; } @@ -439,6 +464,8 @@ int walk_page_buffers( handle_t *handle, int err, ret = 0; struct buffer_head *next; + mlog_entry("(0x%p, 0x%p, %u, %u, 0x%p)\n", handle, head, from, to, fn); + for ( bh = head, block_start = 0; ret == 0 && (bh != head || !block_start); block_start = block_end, bh = next) @@ -454,18 +481,23 @@...

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

Hi, These three patches fix the problems in the version two. And them base on the Tao's patches: ocfs2/xattr: xattr improvement The first patch fix some problem in xattr code. The second patch add security EA support. The third patch add ACL support. Best regards, tiger

...struct dentry *, char *, size_t); extern int ext3_xattr_get(struct inode *, int, const char *, void *, size_t); -extern int ext3_xattr_list(struct inode *, char *, size_t); extern int ext3_xattr_set(struct inode *, int, const char *, const void *, size_t, int); extern int ext3_xattr_set_handle(handle_t *, struct inode *, int, const char *,const void *,size_t,int); -extern int ext3_xattr_block_set(handle_t *, struct inode *, int, const char *,const void *,size_t,int); extern void ext3_xattr_delete_inode(handle_t *, struct inode *); extern void ext3_xattr_put_super(struct super_block *); @@ -88...

This version fixes three bugs in the 2nd patch of this series that caused kernel BUG when the system was under race. We weren't accounting with t_oustanding_credits correctly, and there were race conditions caused by the fact the I had overlooked the fact that __jbd2_log_wait_for_space() and jbd2_get_transaction() requires j_state_lock to be write locked. Theodore Ts'o (3): jbd2: Use