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Commit c1e8d35e authored by Tao Ma's avatar Tao Ma
Browse files

ocfs2: Remove EXIT from masklog. 



mlog_exit is used to record the exit status of a function.
But because it is added in so many functions, if we enable it,
the system logs get filled up quickly and cause too much I/O.
So actually no one can open it for a production system or even
for a test.

This patch just try to remove it or change it. So:
1. if all the error paths already use mlog_errno, it is just removed.
   Otherwise, it will be replaced by mlog_errno.
2. if it is used to print some return value, it is replaced with
   mlog(0,...).
mlog_exit_ptr is changed to mlog(0.
All those mlog(0,...) will be replaced with trace events later.

Signed-off-by: default avatarTao Ma <boyu.mt@taobao.com>
parent ef6b689b

fs/ocfs2/alloc.c

+5 −21
Original line number Diff line number Diff line
@@ -985,7 +985,7 @@ int ocfs2_num_free_extents(struct ocfs2_super *osb, 
bail:

	brelse(eb_bh);



	mlog_exit(retval);

	mlog(0, "retval = %d\n", retval);

	return retval;

}
@@ -1070,8 +1070,8 @@ bail: 
			brelse(bhs[i]);

			bhs[i] = NULL;

		}

		mlog_errno(status);

	}

	mlog_exit(status);

	return status;

}
@@ -1326,7 +1326,6 @@ bail: 
		kfree(new_eb_bhs);

	}



	mlog_exit(status);

	return status;

}
@@ -1407,7 +1406,6 @@ static int ocfs2_shift_tree_depth(handle_t *handle, 
bail:

	brelse(new_eb_bh);



	mlog_exit(status);

	return status;

}
@@ -1493,7 +1491,6 @@ static int ocfs2_find_branch_target(struct ocfs2_extent_tree *et, 
bail:

	brelse(bh);



	mlog_exit(status);

	return status;

}
@@ -4552,7 +4549,7 @@ static int ocfs2_figure_insert_type(struct ocfs2_extent_tree *et, 
					      ocfs2_et_get_last_eb_blk(et),

					      &bh);

		if (ret) {

			mlog_exit(ret);

			mlog_errno(ret);

			goto out;

		}

		eb = (struct ocfs2_extent_block *) bh->b_data;
@@ -4716,7 +4713,6 @@ int ocfs2_insert_extent(handle_t *handle, 
bail:

	brelse(last_eb_bh);



	mlog_exit(status);

	return status;

}
@@ -4818,7 +4814,6 @@ int ocfs2_add_clusters_in_btree(handle_t *handle, 
	}



leave:

	mlog_exit(status);

	if (reason_ret)

		*reason_ret = reason;

	return status;
@@ -5029,7 +5024,7 @@ int ocfs2_split_extent(handle_t *handle, 
					      ocfs2_et_get_last_eb_blk(et),

					      &last_eb_bh);

		if (ret) {

			mlog_exit(ret);

			mlog_errno(ret);

			goto out;

		}
@@ -5849,7 +5844,6 @@ int ocfs2_truncate_log_append(struct ocfs2_super *osb, 


	osb->truncated_clusters += num_clusters;

bail:

	mlog_exit(status);

	return status;

}
@@ -5920,7 +5914,6 @@ static int ocfs2_replay_truncate_records(struct ocfs2_super *osb, 
	osb->truncated_clusters = 0;



bail:

	mlog_exit(status);

	return status;

}
@@ -5995,7 +5988,6 @@ out_mutex: 
	iput(data_alloc_inode);



out:

	mlog_exit(status);

	return status;

}
@@ -6023,8 +6015,6 @@ static void ocfs2_truncate_log_worker(struct work_struct *work) 
		mlog_errno(status);

	else

		ocfs2_init_steal_slots(osb);



	mlog_exit(status);

}



#define OCFS2_TRUNCATE_LOG_FLUSH_INTERVAL (2 * HZ)
@@ -6070,7 +6060,6 @@ static int ocfs2_get_truncate_log_info(struct ocfs2_super *osb, 
	*tl_inode = inode;

	*tl_bh    = bh;

bail:

	mlog_exit(status);

	return status;

}
@@ -6141,9 +6130,9 @@ bail: 
	if (status < 0 && (*tl_copy)) {

		kfree(*tl_copy);

		*tl_copy = NULL;

		mlog_errno(status);

	}



	mlog_exit(status);

	return status;

}
@@ -6201,7 +6190,6 @@ int ocfs2_complete_truncate_log_recovery(struct ocfs2_super *osb, 
bail_up:

	mutex_unlock(&tl_inode->i_mutex);



	mlog_exit(status);

	return status;

}
@@ -6221,8 +6209,6 @@ void ocfs2_truncate_log_shutdown(struct ocfs2_super *osb) 
		brelse(osb->osb_tl_bh);

		iput(osb->osb_tl_inode);

	}



	mlog_exit_void();

}



int ocfs2_truncate_log_init(struct ocfs2_super *osb)
@@ -6246,7 +6232,6 @@ int ocfs2_truncate_log_init(struct ocfs2_super *osb) 
	osb->osb_tl_bh    = tl_bh;

	osb->osb_tl_inode = tl_inode;



	mlog_exit(status);

	return status;

}
@@ -7112,7 +7097,6 @@ bail: 


	ocfs2_free_path(path);



	mlog_exit(status);

	return status;

}

fs/ocfs2/aops.c

+4 −15
Original line number Diff line number Diff line
@@ -123,7 +123,6 @@ static int ocfs2_symlink_get_block(struct inode *inode, sector_t iblock, 
bail:

	brelse(bh);



	mlog_exit(err);

	return err;

}
@@ -208,7 +207,6 @@ bail: 
	if (err < 0)

		err = -EIO;



	mlog_exit(err);

	return err;

}
@@ -323,7 +321,6 @@ out_inode_unlock: 
out:

	if (unlock)

		unlock_page(page);

	mlog_exit(ret);

	return ret;

}
@@ -402,8 +399,6 @@ static int ocfs2_writepage(struct page *page, struct writeback_control *wbc) 


	ret = block_write_full_page(page, ocfs2_get_block, wbc);



	mlog_exit(ret);



	return ret;

}
@@ -484,8 +479,6 @@ static sector_t ocfs2_bmap(struct address_space *mapping, sector_t block) 
bail:

	status = err ? 0 : p_blkno;



	mlog_exit((int)status);



	return status;

}
@@ -616,7 +609,6 @@ static ssize_t ocfs2_direct_IO(int rw, 
{

	struct file *file = iocb->ki_filp;

	struct inode *inode = file->f_path.dentry->d_inode->i_mapping->host;

	int ret;



	/*

	 * Fallback to buffered I/O if we see an inode without
@@ -629,13 +621,10 @@ static ssize_t ocfs2_direct_IO(int rw, 
	if (i_size_read(inode) <= offset)

		return 0;



	ret = __blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev,

	return __blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev,

				    iov, offset, nr_segs,

				    ocfs2_direct_IO_get_blocks,

				    ocfs2_dio_end_io, NULL, 0);



	mlog_exit(ret);

	return ret;

}



static void ocfs2_figure_cluster_boundaries(struct ocfs2_super *osb,

fs/ocfs2/buffer_head_io.c

+4 −3
Original line number Diff line number Diff line
@@ -66,6 +66,7 @@ int ocfs2_write_block(struct ocfs2_super *osb, struct buffer_head *bh, 
	 * can get modified during recovery even if read-only. */

	if (ocfs2_is_hard_readonly(osb)) {

		ret = -EROFS;

		mlog_errno(ret);

		goto out;

	}
@@ -91,11 +92,11 @@ int ocfs2_write_block(struct ocfs2_super *osb, struct buffer_head *bh, 
		 * uptodate. */

		ret = -EIO;

		put_bh(bh);

		mlog_errno(ret);

	}



	ocfs2_metadata_cache_io_unlock(ci);

out:

	mlog_exit(ret);

	return ret;

}
@@ -374,7 +375,6 @@ int ocfs2_read_blocks(struct ocfs2_caching_info *ci, u64 block, int nr, 


bail:



	mlog_exit(status);

	return status;

}
@@ -413,6 +413,7 @@ int ocfs2_write_super_or_backup(struct ocfs2_super *osb, 


	if (ocfs2_is_hard_readonly(osb) || ocfs2_is_soft_readonly(osb)) {

		ret = -EROFS;

		mlog_errno(ret);

		goto out;

	}
@@ -432,9 +433,9 @@ int ocfs2_write_super_or_backup(struct ocfs2_super *osb, 
	if (!buffer_uptodate(bh)) {

		ret = -EIO;

		put_bh(bh);

		mlog_errno(ret);

	}



out:

	mlog_exit(ret);

	return ret;

}

fs/ocfs2/cluster/heartbeat.c

+0 −1
Original line number Diff line number Diff line
@@ -1679,7 +1679,6 @@ static int o2hb_populate_slot_data(struct o2hb_region *reg) 
	}



out:

	mlog_exit(ret);

	return ret;

}

fs/ocfs2/cluster/masklog.c

+1 −2
Original line number Diff line number Diff line
@@ -30,7 +30,7 @@ 


struct mlog_bits mlog_and_bits = MLOG_BITS_RHS(MLOG_INITIAL_AND_MASK);

EXPORT_SYMBOL_GPL(mlog_and_bits);

struct mlog_bits mlog_not_bits = MLOG_BITS_RHS(MLOG_INITIAL_NOT_MASK);

struct mlog_bits mlog_not_bits = MLOG_BITS_RHS(0);

EXPORT_SYMBOL_GPL(mlog_not_bits);



static ssize_t mlog_mask_show(u64 mask, char *buf)
@@ -80,7 +80,6 @@ struct mlog_attribute { 
}



static struct mlog_attribute mlog_attrs[MLOG_MAX_BITS] = {

	define_mask(EXIT),

	define_mask(TCP),

	define_mask(MSG),

	define_mask(SOCKET),