diff options
| -rw-r--r-- | fs/ocfs2/ocfs2_fs.h | 12 | ||||
| -rw-r--r-- | fs/ocfs2/slot_map.c | 15 |
2 files changed, 20 insertions, 7 deletions
diff --git a/fs/ocfs2/ocfs2_fs.h b/fs/ocfs2/ocfs2_fs.h index 3633edd3982..3299116b802 100644 --- a/fs/ocfs2/ocfs2_fs.h +++ b/fs/ocfs2/ocfs2_fs.h @@ -475,6 +475,18 @@ struct ocfs2_extent_block }; /* + * On disk slot map for OCFS2. This defines the contents of the "slot_map" + * system file. + */ +struct ocfs2_slot_map { +/*00*/ __le16 sm_slots[0]; +/* + * Actual on-disk size is one block. OCFS2_MAX_SLOTS is 255, + * 255 * sizeof(__le16) == 512B, within the 512B block minimum blocksize. + */ +}; + +/* * On disk superblock for OCFS2 * Note that it is contained inside an ocfs2_dinode, so all offsets * are relative to the start of ocfs2_dinode.id2. diff --git a/fs/ocfs2/slot_map.c b/fs/ocfs2/slot_map.c index 65a61bfa3f2..e7e7a74156b 100644 --- a/fs/ocfs2/slot_map.c +++ b/fs/ocfs2/slot_map.c @@ -85,17 +85,17 @@ static void ocfs2_set_slot(struct ocfs2_slot_info *si, static void ocfs2_update_slot_info(struct ocfs2_slot_info *si) { int i; - __le16 *disk_info; + struct ocfs2_slot_map *sm; /* we don't read the slot block here as ocfs2_super_lock * should've made sure we have the most recent copy. */ - disk_info = (__le16 *) si->si_bh[0]->b_data; + sm = (struct ocfs2_slot_map *)si->si_bh[0]->b_data; for (i = 0; i < si->si_num_slots; i++) { - if (le16_to_cpu(disk_info[i]) == (u16)OCFS2_INVALID_SLOT) + if (le16_to_cpu(sm->sm_slots[i]) == (u16)OCFS2_INVALID_SLOT) ocfs2_invalidate_slot(si, i); else - ocfs2_set_slot(si, i, le16_to_cpu(disk_info[i])); + ocfs2_set_slot(si, i, le16_to_cpu(sm->sm_slots[i])); } } @@ -135,15 +135,16 @@ static int ocfs2_update_disk_slots(struct ocfs2_super *osb, struct ocfs2_slot_info *si) { int status, i; - __le16 *disk_info = (__le16 *) si->si_bh[0]->b_data; + struct ocfs2_slot_map *sm; spin_lock(&osb->osb_lock); + sm = (struct ocfs2_slot_map *)si->si_bh[0]->b_data; for (i = 0; i < si->si_num_slots; i++) { if (si->si_slots[i].sl_valid) - disk_info[i] = + sm->sm_slots[i] = cpu_to_le16(si->si_slots[i].sl_node_num); else - disk_info[i] = cpu_to_le16(OCFS2_INVALID_SLOT); + sm->sm_slots[i] = cpu_to_le16(OCFS2_INVALID_SLOT); } spin_unlock(&osb->osb_lock); |