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Date: Mon, 7 Jul 2014 13:46:28 +0800
From: Huang Ying <ying.huang@...el.com>
To: Jaegeuk Kim <jaegeuk@...nel.org>,
Changman Lee <cm224.lee@...sung.com>
Cc: linux-f2fs-devel@...ts.sourceforge.net,
linux-kernel@...r.kernel.org, Huang Ying <ying.huang@...el.com>
Subject: f2fs: Add f2fs_balance_fs for direct IO
Otherwise, if a large amount of direct IO writes were done, the
segment allocation may be failed because no enough segments are gced.
Signed-off-by: Huang, Ying <ying.huang@...el.com>
---
fs/f2fs/data.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -1038,6 +1038,7 @@ static ssize_t f2fs_direct_IO(int rw, st
{
struct file *file = iocb->ki_filp;
struct inode *inode = file->f_mapping->host;
+ struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
/* Let buffer I/O handle the inline data case. */
if (f2fs_has_inline_data(inode))
@@ -1046,8 +1047,11 @@ static ssize_t f2fs_direct_IO(int rw, st
if (check_direct_IO(inode, rw, iter, offset))
return 0;
+ if (rw == WRITE)
+ f2fs_balance_fs(sbi);
+
/* clear fsync mark to recover these blocks */
- fsync_mark_clear(F2FS_SB(inode->i_sb), inode->i_ino);
+ fsync_mark_clear(sbi, inode->i_ino);
return blockdev_direct_IO(rw, iocb, inode, iter, offset,
get_data_block);
--
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