diff options
Diffstat (limited to 'fs/ocfs2/localalloc.c')
| -rw-r--r-- | fs/ocfs2/localalloc.c | 55 |
1 files changed, 37 insertions, 18 deletions
diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c index d272847d5a07..add1ffdc5c6c 100644 --- a/fs/ocfs2/localalloc.c +++ b/fs/ocfs2/localalloc.c @@ -75,18 +75,12 @@ static int ocfs2_local_alloc_new_window(struct ocfs2_super *osb, static int ocfs2_local_alloc_slide_window(struct ocfs2_super *osb, struct inode *local_alloc_inode); -/* - * Determine how large our local alloc window should be, in bits. - * - * These values (and the behavior in ocfs2_alloc_should_use_local) have - * been chosen so that most allocations, including new block groups go - * through local alloc. - */ static inline int ocfs2_local_alloc_window_bits(struct ocfs2_super *osb) { - BUG_ON(osb->s_clustersize_bits < 12); + BUG_ON(osb->s_clustersize_bits > 20); - return 2048 >> (osb->s_clustersize_bits - 12); + /* Size local alloc windows by the megabyte */ + return osb->local_alloc_size << (20 - osb->s_clustersize_bits); } /* @@ -96,18 +90,23 @@ static inline int ocfs2_local_alloc_window_bits(struct ocfs2_super *osb) int ocfs2_alloc_should_use_local(struct ocfs2_super *osb, u64 bits) { int la_bits = ocfs2_local_alloc_window_bits(osb); + int ret = 0; if (osb->local_alloc_state != OCFS2_LA_ENABLED) - return 0; + goto bail; /* la_bits should be at least twice the size (in clusters) of * a new block group. We want to be sure block group * allocations go through the local alloc, so allow an * allocation to take up to half the bitmap. */ if (bits > (la_bits / 2)) - return 0; + goto bail; - return 1; + ret = 1; +bail: + mlog(0, "state=%d, bits=%llu, la_bits=%d, ret=%d\n", + osb->local_alloc_state, (unsigned long long)bits, la_bits, ret); + return ret; } int ocfs2_load_local_alloc(struct ocfs2_super *osb) @@ -121,6 +120,19 @@ int ocfs2_load_local_alloc(struct ocfs2_super *osb) mlog_entry_void(); + if (ocfs2_mount_local(osb)) + goto bail; + + if (osb->local_alloc_size == 0) + goto bail; + + if (ocfs2_local_alloc_window_bits(osb) >= osb->bitmap_cpg) { + mlog(ML_NOTICE, "Requested local alloc window %d is larger " + "than max possible %u. Using defaults.\n", + ocfs2_local_alloc_window_bits(osb), (osb->bitmap_cpg - 1)); + osb->local_alloc_size = OCFS2_DEFAULT_LOCAL_ALLOC_SIZE; + } + /* read the alloc off disk */ inode = ocfs2_get_system_file_inode(osb, LOCAL_ALLOC_SYSTEM_INODE, osb->slot_num); @@ -181,6 +193,9 @@ bail: if (inode) iput(inode); + mlog(0, "Local alloc window bits = %d\n", + ocfs2_local_alloc_window_bits(osb)); + mlog_exit(status); return status; } @@ -231,7 +246,7 @@ void ocfs2_shutdown_local_alloc(struct ocfs2_super *osb) mutex_lock(&main_bm_inode->i_mutex); - status = ocfs2_meta_lock(main_bm_inode, &main_bm_bh, 1); + status = ocfs2_inode_lock(main_bm_inode, &main_bm_bh, 1); if (status < 0) { mlog_errno(status); goto out_mutex; @@ -286,7 +301,7 @@ out_unlock: if (main_bm_bh) brelse(main_bm_bh); - ocfs2_meta_unlock(main_bm_inode, 1); + ocfs2_inode_unlock(main_bm_inode, 1); out_mutex: mutex_unlock(&main_bm_inode->i_mutex); @@ -399,7 +414,7 @@ int ocfs2_complete_local_alloc_recovery(struct ocfs2_super *osb, mutex_lock(&main_bm_inode->i_mutex); - status = ocfs2_meta_lock(main_bm_inode, &main_bm_bh, 1); + status = ocfs2_inode_lock(main_bm_inode, &main_bm_bh, 1); if (status < 0) { mlog_errno(status); goto out_mutex; @@ -424,7 +439,7 @@ int ocfs2_complete_local_alloc_recovery(struct ocfs2_super *osb, ocfs2_commit_trans(osb, handle); out_unlock: - ocfs2_meta_unlock(main_bm_inode, 1); + ocfs2_inode_unlock(main_bm_inode, 1); out_mutex: mutex_unlock(&main_bm_inode->i_mutex); @@ -484,6 +499,7 @@ int ocfs2_reserve_local_alloc_bits(struct ocfs2_super *osb, alloc = (struct ocfs2_dinode *) osb->local_alloc_bh->b_data; +#ifdef OCFS2_DEBUG_FS if (le32_to_cpu(alloc->id1.bitmap1.i_used) != ocfs2_local_alloc_count_bits(alloc)) { ocfs2_error(osb->sb, "local alloc inode %llu says it has " @@ -494,6 +510,7 @@ int ocfs2_reserve_local_alloc_bits(struct ocfs2_super *osb, status = -EIO; goto bail; } +#endif free_bits = le32_to_cpu(alloc->id1.bitmap1.i_total) - le32_to_cpu(alloc->id1.bitmap1.i_used); @@ -519,6 +536,9 @@ bail: iput(local_alloc_inode); } + mlog(0, "bits=%d, slot=%d, ret=%d\n", bits_wanted, osb->slot_num, + status); + mlog_exit(status); return status; } @@ -712,9 +732,8 @@ static int ocfs2_sync_local_to_main(struct ocfs2_super *osb, void *bitmap; struct ocfs2_local_alloc *la = OCFS2_LOCAL_ALLOC(alloc); - mlog_entry("total = %u, COUNT = %u, used = %u\n", + mlog_entry("total = %u, used = %u\n", le32_to_cpu(alloc->id1.bitmap1.i_total), - ocfs2_local_alloc_count_bits(alloc), le32_to_cpu(alloc->id1.bitmap1.i_used)); if (!alloc->id1.bitmap1.i_total) { |