AcoSail/kernel_optimize_test
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ovl: add O_DIRECT support

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Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
This commit is contained in:
Miklos Szeredi 2018-07-18 15:44:42 +02:00
parent 9e142c4102
commit f7c72396d0
1 changed files with 3 additions and 0 deletions
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fs/overlayfs/file.c
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@ -110,6 +110,9 @@ static int ovl_open(struct inode *inode, struct file *file)
if (IS_ERR(realfile))
return PTR_ERR(realfile);
/* For O_DIRECT dentry_open() checks f_mapping->a_ops->direct_IO */
file->f_mapping = realfile->f_mapping;
file->private_data = realfile;
return 0;