ovl: Open file with data except for the case of fsync

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ovl_open() should open file which contains data and not open metacopy
inode.  With the introduction of metacopy inodes, with current
implementaion we will end up opening metacopy inode as well.

But there can be certain circumstances like ovl_fsync() where we want to
allow opening a metacopy inode instead.

Hence, change ovl_open_realfile() and and add extra parameter which
specifies whether to allow opening metacopy inode or not.  If this
parameter is false, we look for data inode and open that.

This should allow covering both the cases.

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>

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Vivek Goyal 2018-05-11 11:49:31 -04:00 • committed by Miklos Szeredi

parent 4823d49c26

commit 8c444d2a97

1 changed files with 30 additions and 9 deletions

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fs/overlayfs/file.c

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