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fix block device fallout from ->fsync() changes

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blkdev_fsync() needs to write pages in pagecache...

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Rafael J. Wysocki 2011-08-02 02:17:48 +02:00 committed by Al Viro
parent cfe22345ad
commit da5aa861be
1 changed files with 4 additions and 0 deletions
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4
fs/block_dev.c
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@ -388,6 +388,10 @@ int blkdev_fsync(struct file *filp, loff_t start, loff_t end, int datasync)
struct block_device *bdev = I_BDEV(bd_inode); struct block_device *bdev = I_BDEV(bd_inode);
int error; int error;
error = filemap_write_and_wait_range(filp->f_mapping, start, end);
if (error)
return error;
/* /*
* There is no need to serialise calls to blkdev_issue_flush with * There is no need to serialise calls to blkdev_issue_flush with
* i_mutex and doing so causes performance issues with concurrent * i_mutex and doing so causes performance issues with concurrent