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ocfs2: Remove EXIT from masklog.

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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: Tao Ma <boyu.mt@taobao.com>
This commit is contained in:
Tao Ma
2011-03-07 16:43:21 +08:00
parent ef6b689b63
commit c1e8d35ef5
27 changed files with 159 additions and 315 deletions
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19
fs/ocfs2/aops.c
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@@ -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,
iov, offset, nr_segs,
ocfs2_direct_IO_get_blocks,
ocfs2_dio_end_io, NULL, 0);
mlog_exit(ret);
return ret;
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);
}
static void ocfs2_figure_cluster_boundaries(struct ocfs2_super *osb,