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d1d04ef857
Implement file operations on a regular overlay file. The underlying file is opened separately and cached in ->private_data. It might be worth making an exception for such files when accounting in nr_file to confirm to userspace expectations. We are only adding a small overhead (248bytes for the struct file) since the real inode and dentry are pinned by overlayfs anyway. This patch doesn't have any effect, since the vfs will use d_real() to find the real underlying file to open. The patch at the end of the series will actually enable this functionality. AV: make it use open_with_fake_path(), don't mess with override_creds SzM: still need to mess with override_creds() until no fs uses current_cred() in their open method. Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
9 lines
176 B
Makefile
9 lines
176 B
Makefile
#
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# Makefile for the overlay filesystem.
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#
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obj-$(CONFIG_OVERLAY_FS) += overlay.o
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overlay-objs := super.o namei.o util.o inode.o file.o dir.o readdir.o \
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copy_up.o export.o
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