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Diffstat (limited to 'fs/ocfs2')
-rw-r--r--fs/ocfs2/ocfs2.h3
-rw-r--r--fs/ocfs2/suballoc.c32
2 files changed, 31 insertions, 4 deletions
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
index e1844d5736c..b65d19c9756 100644
--- a/fs/ocfs2/ocfs2.h
+++ b/fs/ocfs2/ocfs2.h
@@ -343,6 +343,9 @@ struct ocfs2_super
unsigned int osb_dx_mask;
u32 osb_dx_seed[4];
+
+ /* the group we used to allocate inodes. */
+ u64 osb_inode_alloc_group;
};
#define OCFS2_SB(sb) ((struct ocfs2_super *)(sb)->s_fs_info)
diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c
index b7a065e87cb..4c1399cc03f 100644
--- a/fs/ocfs2/suballoc.c
+++ b/fs/ocfs2/suballoc.c
@@ -66,6 +66,7 @@ static int ocfs2_block_group_alloc(struct ocfs2_super *osb,
struct inode *alloc_inode,
struct buffer_head *bh,
u64 max_block,
+ u64 *last_alloc_group,
int flags);
static int ocfs2_cluster_group_search(struct inode *inode,
@@ -407,6 +408,7 @@ static int ocfs2_block_group_alloc(struct ocfs2_super *osb,
struct inode *alloc_inode,
struct buffer_head *bh,
u64 max_block,
+ u64 *last_alloc_group,
int flags)
{
int status, credits;
@@ -444,6 +446,11 @@ static int ocfs2_block_group_alloc(struct ocfs2_super *osb,
goto bail;
}
+ if (last_alloc_group && *last_alloc_group != 0) {
+ mlog(0, "use old allocation group %llu for block group alloc\n",
+ (unsigned long long)*last_alloc_group);
+ ac->ac_last_group = *last_alloc_group;
+ }
status = ocfs2_claim_clusters(osb,
handle,
ac,
@@ -518,6 +525,11 @@ static int ocfs2_block_group_alloc(struct ocfs2_super *osb,
alloc_inode->i_blocks = ocfs2_inode_sector_count(alloc_inode);
status = 0;
+
+ /* save the new last alloc group so that the caller can cache it. */
+ if (last_alloc_group)
+ *last_alloc_group = ac->ac_last_group;
+
bail:
if (handle)
ocfs2_commit_trans(osb, handle);
@@ -535,6 +547,7 @@ static int ocfs2_reserve_suballoc_bits(struct ocfs2_super *osb,
struct ocfs2_alloc_context *ac,
int type,
u32 slot,
+ u64 *last_alloc_group,
int flags)
{
int status;
@@ -600,7 +613,8 @@ static int ocfs2_reserve_suballoc_bits(struct ocfs2_super *osb,
}
status = ocfs2_block_group_alloc(osb, alloc_inode, bh,
- ac->ac_max_block, flags);
+ ac->ac_max_block,
+ last_alloc_group, flags);
if (status < 0) {
if (status != -ENOSPC)
mlog_errno(status);
@@ -644,7 +658,7 @@ int ocfs2_reserve_new_metadata_blocks(struct ocfs2_super *osb,
status = ocfs2_reserve_suballoc_bits(osb, (*ac),
EXTENT_ALLOC_SYSTEM_INODE,
- slot, ALLOC_NEW_GROUP);
+ slot, NULL, ALLOC_NEW_GROUP);
if (status < 0) {
if (status != -ENOSPC)
mlog_errno(status);
@@ -690,7 +704,8 @@ static int ocfs2_steal_inode_from_other_nodes(struct ocfs2_super *osb,
status = ocfs2_reserve_suballoc_bits(osb, ac,
INODE_ALLOC_SYSTEM_INODE,
- slot, NOT_ALLOC_NEW_GROUP);
+ slot, NULL,
+ NOT_ALLOC_NEW_GROUP);
if (status >= 0) {
ocfs2_set_inode_steal_slot(osb, slot);
break;
@@ -707,6 +722,7 @@ int ocfs2_reserve_new_inode(struct ocfs2_super *osb,
{
int status;
s16 slot = ocfs2_get_inode_steal_slot(osb);
+ u64 alloc_group;
*ac = kzalloc(sizeof(struct ocfs2_alloc_context), GFP_KERNEL);
if (!(*ac)) {
@@ -742,14 +758,22 @@ int ocfs2_reserve_new_inode(struct ocfs2_super *osb,
goto inode_steal;
atomic_set(&osb->s_num_inodes_stolen, 0);
+ alloc_group = osb->osb_inode_alloc_group;
status = ocfs2_reserve_suballoc_bits(osb, *ac,
INODE_ALLOC_SYSTEM_INODE,
osb->slot_num,
+ &alloc_group,
ALLOC_NEW_GROUP |
ALLOC_GROUPS_FROM_GLOBAL);
if (status >= 0) {
status = 0;
+ spin_lock(&osb->osb_lock);
+ osb->osb_inode_alloc_group = alloc_group;
+ spin_unlock(&osb->osb_lock);
+ mlog(0, "after reservation, new allocation group is "
+ "%llu\n", (unsigned long long)alloc_group);
+
/*
* Some inodes must be freed by us, so try to allocate
* from our own next time.
@@ -796,7 +820,7 @@ int ocfs2_reserve_cluster_bitmap_bits(struct ocfs2_super *osb,
status = ocfs2_reserve_suballoc_bits(osb, ac,
GLOBAL_BITMAP_SYSTEM_INODE,
- OCFS2_INVALID_SLOT,
+ OCFS2_INVALID_SLOT, NULL,
ALLOC_NEW_GROUP);
if (status < 0 && status != -ENOSPC) {
mlog_errno(status);