Messages in this thread | | | Date | Thu, 20 Nov 2014 18:03:13 +0100 | From | Miklos Szeredi <> | Subject | [RFC/RFT] multi-layer support for overlay filesystem |
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Here's the latest patchset to support multiple read-only layers for overlayfs. Diffstat is against overlayfs-current branch.
git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs.git overlayfs-next
I hope to have this included in 3.19.
Please review and test (I can post the full patchset if someone wants that).
Thanks, Miklos
--- Miklos Szeredi (12): ovl: check whiteout while reading directory ovl: make path-type a bitmap ovl: dont replace opaque dir ovl: add mutli-layer infrastructure ovl: helper to iterate layers ovl: multi-layer readdir ovl: multi-layer lookup ovl: allow statfs if no upper layer ovl: mount: change order of initialization ovl: improve mount helpers ovl: make upperdir optional ovl: support multiple lower layers
--- Documentation/filesystems/overlayfs.txt | 12 + fs/overlayfs/copy_up.c | 4 +- fs/overlayfs/dir.c | 24 +- fs/overlayfs/inode.c | 9 +- fs/overlayfs/overlayfs.h | 14 +- fs/overlayfs/readdir.c | 120 +++----- fs/overlayfs/super.c | 521 ++++++++++++++++++++------------ 7 files changed, 427 insertions(+), 277 deletions(-)
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