diff options
| -rw-r--r-- | fs/ocfs2/ocfs2.h | 3 | ||||
| -rw-r--r-- | fs/ocfs2/suballoc.c | 32 |
2 files changed, 31 insertions, 4 deletions
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h index e1844d5..b65d19c 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 b7a065e..4c1399c 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); |