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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 | 2 +- 2 files changed, 2 insertions(+), 2 del...

I am a teacher of computing programming in Madrid (Spain).Reciently I had presented for to be examined new library in Boost.( http://dl.dropbox.com/u/8437476/works/countertree/index.html ). I am writting you because I think a part of this library, the suballocator, can be useful to you. The suballocator works with the allocator for to improve the allocation speed of fixed size elements, like in the Standard Library list, set, multiset, map and multimap. In the benchmark done with CLANG 3.0 ( http://dl.dropbox.com/u/8437476/works/countertree/suballocato...

changes from v3: 1, move codes that checks inode allocation bit to subfunction ocfs2_test_inode_bit(). 2, release the suballoc lock just after we get it. we should release it asap and doing so doesn't affect functionility. 3, add inode alloc slot validation. Signed-off-by: Wengang Wang <wen.gang.wang at oracle.com> -- dlmglue.c | 45 +++++++++++++++++ dlmglue.h | 2 export.c | 75 +++++++...

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.

changes from v4: 1, let suballoc lock covers the checking of the group. 2, add/correct some log messages. 3, use ocfs2_read_group_descriptor() instead of diry reading the group. Signed-off-by: Wengang Wang <wen.gang.wang at oracle.com> -- dlmglue.c | 45 ++++++++++++++++ dlmglue.h | 2 export.c | 7...

...llocation can use this information. For more details, please see http://oss.oracle.com/osswiki/OCFS2/DesignDocs/InodeAllocationStrategy. Signed-off-by: Tao Ma <tao.ma at oracle.com> --- fs/ocfs2/inode.c | 2 ++ fs/ocfs2/inode.h | 4 ++++ fs/ocfs2/namei.c | 4 ++-- fs/ocfs2/suballoc.c | 36 ++++++++++++++++++++++++++++++++++++ fs/ocfs2/suballoc.h | 2 ++ 5 files changed, 46 insertions(+), 2 deletions(-) diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c index f1f77b2..4a88bce 100644 --- a/fs/ocfs2/inode.c +++ b/fs/ocfs2/inode.c @@ -352,6 +352,8 @@ void ocfs2_populate_inode...

...rmal case. Signed-off-by: Wengang Wang <wen.gang.wang at oracle.com> -- dlmglue.c | 45 ++++++++++++++++ dlmglue.h | 2 export.c | 77 ++++++++++++++++++++++++++--- inode.c | 24 ++++++++- inode.h | 1 ocfs2.h | 1 ocfs2_lockid.h | 4 + suballoc.c | 151 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ suballoc.h | 2 9 files changed, 298 insertions(+), 9 deletions(-) Index: export.c =================================================================== --- export.c (revision 139) +++ export.c (working copy) @@ -38,6 +38,...

...normal case. Signed-off-by: Wengang Wang <wen.gang.wang at oracle.com> -- dlmglue.c | 46 +++++++++++++++++ dlmglue.h | 2 export.c | 74 ++++++++++++++++++++++++--- inode.c | 24 ++++++++ inode.h | 1 ocfs2.h | 1 ocfs2_lockid.h | 4 + suballoc.c | 153 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ suballoc.h | 2 9 files changed, 299 insertions(+), 8 deletions(-) diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c index 206a237..740b19b 100644 --- a/fs/ocfs2/dlmglue.c +++ b/fs/ocfs2/dlmglue.c @@ -244,6 +244,10 @@...

...x); int ocfs2_file_lock(struct file *file, int ex, int trylock); diff --git a/fs/ocfs2/export.c b/fs/ocfs2/export.c index 2f27b33..e28ff06 100644 --- a/fs/ocfs2/export.c +++ b/fs/ocfs2/export.c @@ -38,6 +38,7 @@ #include "inode.h" #include "buffer_head_io.h" +#include "suballoc.h" struct ocfs2_inode_handle { @@ -49,29 +50,88 @@ static struct dentry *ocfs2_get_dentry(struct super_block *sb, struct ocfs2_inode_handle *handle) { struct inode *inode; + struct ocfs2_super *osb = OCFS2_SB(sb); + u64 blkno = handle->ih_blkno; + int status, set; struct dentry...

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 @@ static struct dentry *ocfs2_get_dentry(struct super_block *sb, /...

...ormal case. Signed-off-by: Wengang Wang <wen.gang.wang at oracle.com> -- dlmglue.c | 45 ++++++++++++++++ dlmglue.h | 2 export.c | 79 +++++++++++++++++++++++++--- inode.c | 25 ++++++++- inode.h | 1 ocfs2.h | 1 ocfs2_lockid.h | 4 + suballoc.c | 157 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ suballoc.h | 2 9 files changed, 305 insertions(+), 11 deletions(-) diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c index 7eceb0a..5327bb9 100644 --- a/fs/ocfs2/dlmglue.c +++ b/fs/ocfs2/dlmglue.c @@ -246,6 +246,10 @...

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: ocfs2_block_group_claim_bits()->ocfs2_claim_clusters()-> __ocfs2_claim_clusters()->ocfs2_claim_suballoc_bits() ocfs2_claim_suballoc_bits set ac->ac_allow_chain_relink = 1; then call ocfs2_search_chain() one time and disable it again, and then we r...

...out like this(with bs=512, and cs=4K). debugfs: stat 15151 Inode: 66072 Mode: 0644 Generation: 59969160 (0x3930e88) <snip> Tree Depth: 1 Count: 19 Next Free Rec: 2 ## Offset Clusters Block# 0 0 258 86365 1 258 66 86367 SubAlloc Bit: 21 SubAlloc Slot: 0 Blknum: 86365 Next Leaf: 86367 CRC32: N/A ECC: N/A Tree Depth: 0 Count: 28 Next Free Rec: 28 ## Offset Clusters Block# Flags 0 0 1 116696 0x0 <snip> 25 25 1 117096...

...<wen.gang.wang at oracle.com> -- dlmglue.c | 45 +++++++++++++++++++++++ dlmglue.h | 2 + export.c | 111 +++++++++++++++++++++++++++++++++++++++++++++++++++------ inode.c | 23 +++++++++++ inode.h | 1 ocfs2.h | 1 ocfs2_lockid.h | 4 ++ suballoc.c | 75 ++++++++++++++++++++++++++++++++++++++ suballoc.h | 7 +++ 9 files changed, 258 insertions(+), 11 deletions(-) Index: fs/ocfs2/export.c =================================================================== --- fs/ocfs2/export.c (revision 128) +++ fs/ocfs2/export.c (working copy)...

...ng ocfs2 make. ocfs2/trivial: Remove unused variable in ocfs2_rename. MAINTAINERS | 2 +- fs/ocfs2/dcache.c | 15 +++++++++++++++ fs/ocfs2/dir.c | 4 ++-- fs/ocfs2/export.c | 9 +++++---- fs/ocfs2/journal.h | 5 +++-- fs/ocfs2/namei.c | 4 ---- fs/ocfs2/suballoc.c | 21 +++++++++++++-------- 7 files changed, 39 insertions(+), 21 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index c3b2159..7625387 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3335,7 +3335,7 @@ P: Joel Becker M: joel.becker at oracle.com L: ocfs2-devel at oss.oracle.com (moderate...

...pull from 'upstream-linus' branch of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2.git to receive the following updates: fs/ocfs2/dlm/dlmmaster.c | 1 fs/ocfs2/dlm/dlmunlock.c | 43 +++---- fs/ocfs2/localalloc.c | 8 + fs/ocfs2/ocfs2.h | 2 fs/ocfs2/suballoc.c | 261 +++++++++++++++++++++++++++++++++++++++++------ fs/ocfs2/suballoc.h | 2 fs/ocfs2/super.c | 8 + 7 files changed, 263 insertions(+), 62 deletions(-) Adrian Bunk: fs/ocfs2/dlm/dlmmaster.c: unexport dlm_migrate_lockres Kurt Hackel: ocfs2: Fix lvb corru...

...0, SEEK_SET); write(fd, buf, 5); close(fd); return 0; } The reason of the panic is that: the 30 writes and the ftruncate makes the file's extent list looks like: Tree Depth: 1 Count: 19 Next Free Rec: 1 ## Offset Clusters Block# 0 0 280 86183 SubAlloc Bit: 7 SubAlloc Slot: 0 Blknum: 86183 Next Leaf: 0 CRC32: 00000000 ECC: 0000 Tree Depth: 0 Count: 28 Next Free Rec: 28 ## Offset Clusters Block# Flags 0 0 1 143368 0x0 1 10 1 143376 0x0 ......

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

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

...rnel.org/.../dtor/input are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2.git upstream-linus Joel Becker (16): ocfs2: Define data structures for discontiguous block groups. ocfs2: Allocate discontiguous block groups. ocfs2: Pass suballocation results back via a structure. ocfs2: Add suballoc_loc to metadata blocks. ocfs2: ocfs2_claim_suballoc_bits() doesn't need an osb argument. ocfs2: Trim suballocations if they cross discontiguous regions ocfs2: ocfs2_claim_*() don't need an ocfs2_super argument....