diff options
Diffstat (limited to 'fs/reiserfs/journal.c')
-rw-r--r-- | fs/reiserfs/journal.c | 140 |
1 files changed, 71 insertions, 69 deletions
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c index 4491fcf2a0e..b7a179560ab 100644 --- a/fs/reiserfs/journal.c +++ b/fs/reiserfs/journal.c @@ -152,18 +152,16 @@ static struct reiserfs_bitmap_node *allocate_bitmap_node(struct super_block struct reiserfs_bitmap_node *bn; static int id; - bn = reiserfs_kmalloc(sizeof(struct reiserfs_bitmap_node), GFP_NOFS, - p_s_sb); + bn = kmalloc(sizeof(struct reiserfs_bitmap_node), GFP_NOFS); if (!bn) { return NULL; } - bn->data = reiserfs_kmalloc(p_s_sb->s_blocksize, GFP_NOFS, p_s_sb); + bn->data = kzalloc(p_s_sb->s_blocksize, GFP_NOFS); if (!bn->data) { - reiserfs_kfree(bn, sizeof(struct reiserfs_bitmap_node), p_s_sb); + kfree(bn); return NULL; } bn->id = id++; - memset(bn->data, 0, p_s_sb->s_blocksize); INIT_LIST_HEAD(&bn->list); return bn; } @@ -197,8 +195,8 @@ static inline void free_bitmap_node(struct super_block *p_s_sb, struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb); journal->j_used_bitmap_nodes--; if (journal->j_free_bitmap_nodes > REISERFS_MAX_BITMAP_NODES) { - reiserfs_kfree(bn->data, p_s_sb->s_blocksize, p_s_sb); - reiserfs_kfree(bn, sizeof(struct reiserfs_bitmap_node), p_s_sb); + kfree(bn->data); + kfree(bn); } else { list_add(&bn->list, &journal->j_bitmap_nodes); journal->j_free_bitmap_nodes++; @@ -276,8 +274,8 @@ static int free_bitmap_nodes(struct super_block *p_s_sb) while (next != &journal->j_bitmap_nodes) { bn = list_entry(next, struct reiserfs_bitmap_node, list); list_del(next); - reiserfs_kfree(bn->data, p_s_sb->s_blocksize, p_s_sb); - reiserfs_kfree(bn, sizeof(struct reiserfs_bitmap_node), p_s_sb); + kfree(bn->data); + kfree(bn); next = journal->j_bitmap_nodes.next; journal->j_free_bitmap_nodes--; } @@ -581,7 +579,7 @@ static inline void put_journal_list(struct super_block *s, jl->j_trans_id, jl->j_refcount); } if (--jl->j_refcount == 0) - reiserfs_kfree(jl, sizeof(struct reiserfs_journal_list), s); + kfree(jl); } /* @@ -848,6 +846,14 @@ static int write_ordered_buffers(spinlock_t * lock, spin_lock(lock); goto loop_next; } + /* in theory, dirty non-uptodate buffers should never get here, + * but the upper layer io error paths still have a few quirks. + * Handle them here as gracefully as we can + */ + if (!buffer_uptodate(bh) && buffer_dirty(bh)) { + clear_buffer_dirty(bh); + ret = -EIO; + } if (buffer_dirty(bh)) { list_del_init(&jh->list); list_add(&jh->list, &tmp); @@ -879,6 +885,19 @@ static int write_ordered_buffers(spinlock_t * lock, if (!buffer_uptodate(bh)) { ret = -EIO; } + /* ugly interaction with invalidatepage here. + * reiserfs_invalidate_page will pin any buffer that has a valid + * journal head from an older transaction. If someone else sets + * our buffer dirty after we write it in the first loop, and + * then someone truncates the page away, nobody will ever write + * the buffer. We're safe if we write the page one last time + * after freeing the journal header. + */ + if (buffer_dirty(bh) && unlikely(bh->b_page->mapping == NULL)) { + spin_unlock(lock); + ll_rw_block(WRITE, 1, &bh); + spin_lock(lock); + } put_bh(bh); cond_resched_lock(lock); } @@ -977,6 +996,7 @@ static int flush_commit_list(struct super_block *s, struct reiserfs_journal *journal = SB_JOURNAL(s); int barrier = 0; int retval = 0; + int write_len; reiserfs_check_lock_depth(s, "flush_commit_list"); @@ -1018,24 +1038,35 @@ static int flush_commit_list(struct super_block *s, } if (!list_empty(&jl->j_bh_list)) { + int ret; unlock_kernel(); - write_ordered_buffers(&journal->j_dirty_buffers_lock, - journal, jl, &jl->j_bh_list); + ret = write_ordered_buffers(&journal->j_dirty_buffers_lock, + journal, jl, &jl->j_bh_list); + if (ret < 0 && retval == 0) + retval = ret; lock_kernel(); } BUG_ON(!list_empty(&jl->j_bh_list)); /* * for the description block and all the log blocks, submit any buffers - * that haven't already reached the disk + * that haven't already reached the disk. Try to write at least 256 + * log blocks. later on, we will only wait on blocks that correspond + * to this transaction, but while we're unplugging we might as well + * get a chunk of data on there. */ atomic_inc(&journal->j_async_throttle); - for (i = 0; i < (jl->j_len + 1); i++) { + write_len = jl->j_len + 1; + if (write_len < 256) + write_len = 256; + for (i = 0 ; i < write_len ; i++) { bn = SB_ONDISK_JOURNAL_1st_BLOCK(s) + (jl->j_start + i) % SB_ONDISK_JOURNAL_SIZE(s); tbh = journal_find_get_block(s, bn); - if (buffer_dirty(tbh)) /* redundant, ll_rw_block() checks */ - ll_rw_block(SWRITE, 1, &tbh); - put_bh(tbh); + if (tbh) { + if (buffer_dirty(tbh)) + ll_rw_block(WRITE, 1, &tbh) ; + put_bh(tbh) ; + } } atomic_dec(&journal->j_async_throttle); @@ -1818,8 +1849,7 @@ void remove_journal_hash(struct super_block *sb, static void free_journal_ram(struct super_block *p_s_sb) { struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb); - reiserfs_kfree(journal->j_current_jl, - sizeof(struct reiserfs_journal_list), p_s_sb); + kfree(journal->j_current_jl); journal->j_num_lists--; vfree(journal->j_cnode_free_orig); @@ -2093,21 +2123,15 @@ static int journal_read_transaction(struct super_block *p_s_sb, } trans_id = get_desc_trans_id(desc); /* now we know we've got a good transaction, and it was inside the valid time ranges */ - log_blocks = - reiserfs_kmalloc(get_desc_trans_len(desc) * - sizeof(struct buffer_head *), GFP_NOFS, p_s_sb); - real_blocks = - reiserfs_kmalloc(get_desc_trans_len(desc) * - sizeof(struct buffer_head *), GFP_NOFS, p_s_sb); + log_blocks = kmalloc(get_desc_trans_len(desc) * + sizeof(struct buffer_head *), GFP_NOFS); + real_blocks = kmalloc(get_desc_trans_len(desc) * + sizeof(struct buffer_head *), GFP_NOFS); if (!log_blocks || !real_blocks) { brelse(c_bh); brelse(d_bh); - reiserfs_kfree(log_blocks, - get_desc_trans_len(desc) * - sizeof(struct buffer_head *), p_s_sb); - reiserfs_kfree(real_blocks, - get_desc_trans_len(desc) * - sizeof(struct buffer_head *), p_s_sb); + kfree(log_blocks); + kfree(real_blocks); reiserfs_warning(p_s_sb, "journal-1169: kmalloc failed, unable to mount FS"); return -1; @@ -2145,12 +2169,8 @@ static int journal_read_transaction(struct super_block *p_s_sb, brelse_array(real_blocks, i); brelse(c_bh); brelse(d_bh); - reiserfs_kfree(log_blocks, - get_desc_trans_len(desc) * - sizeof(struct buffer_head *), p_s_sb); - reiserfs_kfree(real_blocks, - get_desc_trans_len(desc) * - sizeof(struct buffer_head *), p_s_sb); + kfree(log_blocks); + kfree(real_blocks); return -1; } } @@ -2166,12 +2186,8 @@ static int journal_read_transaction(struct super_block *p_s_sb, brelse_array(real_blocks, get_desc_trans_len(desc)); brelse(c_bh); brelse(d_bh); - reiserfs_kfree(log_blocks, - get_desc_trans_len(desc) * - sizeof(struct buffer_head *), p_s_sb); - reiserfs_kfree(real_blocks, - get_desc_trans_len(desc) * - sizeof(struct buffer_head *), p_s_sb); + kfree(log_blocks); + kfree(real_blocks); return -1; } memcpy(real_blocks[i]->b_data, log_blocks[i]->b_data, @@ -2193,12 +2209,8 @@ static int journal_read_transaction(struct super_block *p_s_sb, get_desc_trans_len(desc) - i); brelse(c_bh); brelse(d_bh); - reiserfs_kfree(log_blocks, - get_desc_trans_len(desc) * - sizeof(struct buffer_head *), p_s_sb); - reiserfs_kfree(real_blocks, - get_desc_trans_len(desc) * - sizeof(struct buffer_head *), p_s_sb); + kfree(log_blocks); + kfree(real_blocks); return -1; } brelse(real_blocks[i]); @@ -2217,12 +2229,8 @@ static int journal_read_transaction(struct super_block *p_s_sb, journal->j_trans_id = trans_id + 1; brelse(c_bh); brelse(d_bh); - reiserfs_kfree(log_blocks, - le32_to_cpu(desc->j_len) * sizeof(struct buffer_head *), - p_s_sb); - reiserfs_kfree(real_blocks, - le32_to_cpu(desc->j_len) * sizeof(struct buffer_head *), - p_s_sb); + kfree(log_blocks); + kfree(real_blocks); return 0; } @@ -2471,14 +2479,8 @@ static int journal_read(struct super_block *p_s_sb) static struct reiserfs_journal_list *alloc_journal_list(struct super_block *s) { struct reiserfs_journal_list *jl; - retry: - jl = reiserfs_kmalloc(sizeof(struct reiserfs_journal_list), GFP_NOFS, - s); - if (!jl) { - yield(); - goto retry; - } - memset(jl, 0, sizeof(*jl)); + jl = kzalloc(sizeof(struct reiserfs_journal_list), + GFP_NOFS | __GFP_NOFAIL); INIT_LIST_HEAD(&jl->j_list); INIT_LIST_HEAD(&jl->j_working_list); INIT_LIST_HEAD(&jl->j_tail_bh_list); @@ -2821,6 +2823,9 @@ int journal_transaction_should_end(struct reiserfs_transaction_handle *th, journal->j_cnode_free < (journal->j_trans_max * 3)) { return 1; } + /* protected by the BKL here */ + journal->j_len_alloc += new_alloc; + th->t_blocks_allocated += new_alloc ; return 0; } @@ -3042,14 +3047,12 @@ struct reiserfs_transaction_handle *reiserfs_persistent_transaction(struct } return th; } - th = reiserfs_kmalloc(sizeof(struct reiserfs_transaction_handle), - GFP_NOFS, s); + th = kmalloc(sizeof(struct reiserfs_transaction_handle), GFP_NOFS); if (!th) return NULL; ret = journal_begin(th, s, nblocks); if (ret) { - reiserfs_kfree(th, sizeof(struct reiserfs_transaction_handle), - s); + kfree(th); return NULL; } @@ -3067,8 +3070,7 @@ int reiserfs_end_persistent_transaction(struct reiserfs_transaction_handle *th) ret = -EIO; if (th->t_refcount == 0) { SB_JOURNAL(s)->j_persistent_trans--; - reiserfs_kfree(th, sizeof(struct reiserfs_transaction_handle), - s); + kfree(th); } return ret; } |