search for: ocfs2_alloc_context

Hi all, this patch set are the backport of inode alloc improvement from mainline to ocfs2-1.4. the patches are almost the same excpet one thing: Joel has added JBD2 support to ocfs2, so he has added "max_blocks" to alloc_context and add a new function "ocfs2_reserve_clusters_with_limit". We don't have that in ocfs2-1.4. So there are some great difference in patch 2.

...t a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c index a696286..487f00c 100644 --- a/fs/ocfs2/suballoc.c +++ b/fs/ocfs2/suballoc.c @@ -1618,8 +1618,41 @@ bail: return status; } +static void ocfs2_init_inode_ac_group(struct inode *dir, + struct buffer_head *parent_fe_bh, + struct ocfs2_alloc_context *ac) +{ + struct ocfs2_dinode *fe = (struct ocfs2_dinode *)parent_fe_bh->b_data; + /* + * Try to allocate inodes from some specific group. + * + * If the parent dir has recorded the last group used in allocation, + * cool, use it. Otherwise if we try to allocate new inode from the + * same...

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

Hi, I split the previous support security EA patch into four patches for review. Them besed on joel's xattr-28 branch and tao's patch "Merge xattr set transaction". 1: move new_inode out of the transaction. 2: add ocfs2_xattr_set_handle. 3: add security xattr APIs 4: add init_security in mknod. Best regards, tiger

...0x1 5) Now comes the 260, we need to split and call ocfs2_add_branch to allocate a new block. But wait, we have no metadata reserved. So we panic here. So my thought is that can we reuse the freed extent block? I guess we can. We just need to store the pointer of ocfs2_cached_dealloc_ctxt in ocfs2_alloc_context. So whenever we allocate a new metadata, we try to search ocfs2_cached_dealloc_ctxt first, if there is some, we use it directly and delete it from ocfs2_cached_dealloc_ctxt. The same can go for cluster allocation I guess although I don't know whether we have such case for clusters. make se...

...be staying in cache for the duration of * this operation. */ - ac->ac_allow_chain_relink = 0; + ac->ac_disable_chain_relink = 1; /* Claim the first region */ status = ocfs2_block_group_claim_bits(osb, handle, ac, min_bits, @@ -1823,7 +1823,7 @@ static int ocfs2_search_chain(struct ocfs2_alloc_context *ac, * Do this *after* figuring out how many bits we're taking out * of our target group. */ - if (ac->ac_allow_chain_relink && + if (!ac->ac_disable_chain_relink && (prev_group_bh) && (ocfs2_block_group_reasonably_empty(bg, res->sr_bits)))...

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

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.

The patch was created against a 1.4 tree. However, it applies cleanly to mainline too. The patch has been lightly tested. I am running fill_verify_holes on a non sparse volume currently. Please review. Sunil

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

...index 1955230..9d91e66 100644 --- a/fs/ocfs2/suballoc.c +++ b/fs/ocfs2/suballoc.c @@ -70,12 +70,6 @@ static int ocfs2_block_group_search(stru struct buffer_head *group_bh, u32 bits_wanted, u32 min_bits, u16 *bit_off, u16 *bits_found); -static int ocfs2_search_chain(struct ocfs2_alloc_context *ac, - u32 bits_wanted, - u32 min_bits, - u16 *bit_off, - unsigned int *num_bits, - u64 *bg_blkno); static int ocfs2_claim_suballoc_bits(struct ocfs2_super *osb, struct ocfs2_alloc_context *ac, u32 bits_wanted, @@ -85,11 +79,6 @@ static i...

One line fix from Joel's version. Also, some comments removed. 18:58 <sunil> wc->w_first_new_cpos = 18:58 <sunil> - ocfs2_align_bytes_to_clusters(inode->i_sb, i_size_read(inode)); 18:58 <sunil> + ocfs2_clusters_for_bytes(inode->i_sb, i_size_read(inode));

...out_unlock: diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c index cd5496b..25ec3b7 100644 --- a/fs/ocfs2/localalloc.c +++ b/fs/ocfs2/localalloc.c @@ -781,6 +781,46 @@ bail: return status; } +int ocfs2_free_local_alloc_bits(struct ocfs2_super *osb, + handle_t *handle, + struct ocfs2_alloc_context *ac, + u32 bit_off, + u32 num_bits) +{ + int status, start; + struct inode *local_alloc_inode; + void *bitmap; + struct ocfs2_dinode *alloc; + struct ocfs2_local_alloc *la; + + BUG_ON(ac->ac_which != OCFS2_AC_USE_LOCAL); + + local_alloc_inode = ac->ac_inode; + alloc = (struct ocfs2_dino...

...out_unlock: diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c index cd5496b..25ec3b7 100644 --- a/fs/ocfs2/localalloc.c +++ b/fs/ocfs2/localalloc.c @@ -781,6 +781,46 @@ bail: return status; } +int ocfs2_free_local_alloc_bits(struct ocfs2_super *osb, + handle_t *handle, + struct ocfs2_alloc_context *ac, + u32 bit_off, + u32 num_bits) +{ + int status, start; + struct inode *local_alloc_inode; + void *bitmap; + struct ocfs2_dinode *alloc; + struct ocfs2_local_alloc *la; + + BUG_ON(ac->ac_which != OCFS2_AC_USE_LOCAL); + + local_alloc_inode = ac->ac_inode; + alloc = (struct ocfs2_dino...

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

Changelog from V1 to V2: 1. Modify some codes according to Mark's advice. 2. Attach some test statistics in the commit log of patch 3 and in this e-mail also. See below. Hi all, In ocfs2, when we create a fresh file system and create inodes in it, they are contiguous and good for readdir+stat. While if we delete all the inodes and created again, the new inodes will get spread out and that

...++++-------------------------------- 3 files changed, 70 insertions(+), 83 deletions(-) diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c index dbfa6f6..a75c340 100644 --- a/fs/ocfs2/dir.c +++ b/fs/ocfs2/dir.c @@ -81,10 +81,10 @@ static int ocfs2_do_extend_dir(struct super_block *sb, struct ocfs2_alloc_context *meta_ac, struct buffer_head **new_bh); -int ocfs2_check_dir_entry(struct inode * dir, - struct ocfs2_dir_entry * de, - struct buffer_head * bh, - unsigned long offset) +static int ocfs2_check_dir_entry(struct inode * dir, + struct ocfs2_dir_entry * de, + struct buf...

Please review the list of patches being applied to the ocfs2 1.4 tree. All patches list the mainline commit hash. Thanks Sunil