diff options
| -rw-r--r-- | fs/ocfs2/localalloc.c | 2 | ||||
| -rw-r--r-- | fs/ocfs2/ocfs2_fs.h | 37 | ||||
| -rw-r--r-- | fs/ocfs2/resize.c | 6 | ||||
| -rw-r--r-- | fs/ocfs2/suballoc.c | 3 | ||||
| -rw-r--r-- | fs/ocfs2/super.c | 3 |
5 files changed, 34 insertions, 17 deletions
diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c index aab1b63..3d74196 100644 --- a/fs/ocfs2/localalloc.c +++ b/fs/ocfs2/localalloc.c @@ -122,7 +122,7 @@ unsigned int ocfs2_la_default_mb(struct ocfs2_super *osb) struct super_block *sb = osb->sb; gd_mb = ocfs2_clusters_to_megabytes(osb->sb, - 8 * ocfs2_group_bitmap_size(sb, 0)); + 8 * ocfs2_group_bitmap_size(sb, 0, osb->s_feature_incompat)); /* * This takes care of files systems with very small group diff --git a/fs/ocfs2/ocfs2_fs.h b/fs/ocfs2/ocfs2_fs.h index a17bce5..67bb8a7 100644 --- a/fs/ocfs2/ocfs2_fs.h +++ b/fs/ocfs2/ocfs2_fs.h @@ -1338,15 +1338,21 @@ static inline u16 ocfs2_local_alloc_size(struct super_block *sb) } static inline int ocfs2_group_bitmap_size(struct super_block *sb, - int suballocator) + int suballocator, + u32 feature_incompat) { - int size; + int size = sb->s_blocksize - + offsetof(struct ocfs2_group_desc, bg_bitmap); - if (suballocator) + /* + * The cluster allocator uses the entire block. Suballocators have + * never used more than OCFS2_MAX_BG_BITMAP_SIZE. Unfortunately, older + * code expects bg_size set to the maximum. Thus we must keep + * bg_size as-is unless discontig_bg is enabled. + */ + if (suballocator && + (feature_incompat & OCFS2_FEATURE_INCOMPAT_DISCONTIG_BG)) size = OCFS2_MAX_BG_BITMAP_SIZE; - else - size = sb->s_blocksize - - offsetof(struct ocfs2_group_desc, bg_bitmap); return size; } @@ -1479,15 +1485,22 @@ static inline int ocfs2_local_alloc_size(int blocksize) return size; } -static inline int ocfs2_group_bitmap_size(int blocksize, int suballocator) +static inline int ocfs2_group_bitmap_size(int blocksize, + int suballocator, + uint32_t feature_incompat) { - int size; + int size = sb->s_blocksize - + offsetof(struct ocfs2_group_desc, bg_bitmap); - if (suballocator) + /* + * The cluster allocator uses the entire block. Suballocators have + * never used more than OCFS2_MAX_BG_BITMAP_SIZE. Unfortunately, older + * code expects bg_size set to the maximum. Thus we must keep + * bg_size as-is unless discontig_bg is enabled. + */ + if (suballocator && + (feature_incompat & OCFS2_FEATURE_INCOMPAT_DISCONTIG_BG)) size = OCFS2_MAX_BG_BITMAP_SIZE; - else - size = blocksize - - offsetof(struct ocfs2_group_desc, bg_bitmap); return size; } diff --git a/fs/ocfs2/resize.c b/fs/ocfs2/resize.c index 5bbfc12..dacd553 100644 --- a/fs/ocfs2/resize.c +++ b/fs/ocfs2/resize.c @@ -315,7 +315,8 @@ int ocfs2_group_extend(struct inode * inode, int new_clusters) BUG_ON(!OCFS2_IS_VALID_DINODE(fe)); if (le16_to_cpu(fe->id2.i_chain.cl_cpg) != - ocfs2_group_bitmap_size(osb->sb, 0) * 8) { + ocfs2_group_bitmap_size(osb->sb, 0, + osb->s_feature_incompat) * 8) { mlog(ML_ERROR, "The disk is too old and small. " "Force to do offline resize."); ret = -EINVAL; @@ -496,7 +497,8 @@ int ocfs2_group_add(struct inode *inode, struct ocfs2_new_group_input *input) fe = (struct ocfs2_dinode *)main_bm_bh->b_data; if (le16_to_cpu(fe->id2.i_chain.cl_cpg) != - ocfs2_group_bitmap_size(osb->sb, 0) * 8) { + ocfs2_group_bitmap_size(osb->sb, 0, + osb->s_feature_incompat) * 8) { mlog(ML_ERROR, "The disk is too old and small." " Force to do offline resize."); ret = -EINVAL; diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c index b7491e2..6f39da4 100644 --- a/fs/ocfs2/suballoc.c +++ b/fs/ocfs2/suballoc.c @@ -391,7 +391,8 @@ static int ocfs2_block_group_fill(handle_t *handle, memset(bg, 0, sb->s_blocksize); strcpy(bg->bg_signature, OCFS2_GROUP_DESC_SIGNATURE); bg->bg_generation = cpu_to_le32(OCFS2_SB(sb)->fs_generation); - bg->bg_size = cpu_to_le16(ocfs2_group_bitmap_size(sb, 1)); + bg->bg_size = cpu_to_le16(ocfs2_group_bitmap_size(sb, 1, + osb->s_feature_incompat)); bg->bg_chain = cpu_to_le16(my_chain); bg->bg_next_group = cl->cl_recs[my_chain].c_blkno; bg->bg_parent_dinode = cpu_to_le64(OCFS2_I(alloc_inode)->ip_blkno); diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c index 59930ee..106becf 100644 --- a/fs/ocfs2/super.c +++ b/fs/ocfs2/super.c @@ -2277,7 +2277,8 @@ static int ocfs2_initialize_super(struct super_block *sb, osb->osb_clusters_at_boot = OCFS2_I(inode)->ip_clusters; iput(inode); - osb->bitmap_cpg = ocfs2_group_bitmap_size(sb, 0) * 8; + osb->bitmap_cpg = ocfs2_group_bitmap_size(sb, 0, + osb->s_feature_incompat) * 8; status = ocfs2_init_slot_info(osb); if (status < 0) { |