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authorMiklos Szeredi <mszeredi@suse.cz>2014-12-13 02:59:44 +0300
committerMiklos Szeredi <mszeredi@suse.cz>2014-12-13 02:59:44 +0300
commit9d7459d834c28f55c82f1737f638a6c90e0c0e0f (patch)
treef84ddaacf935a2bc411b79e637cd73e109a56225 /fs/overlayfs/super.c
parent5ef88da56a77bfb3b9631f5e5775f3bff86b6219 (diff)
downloadlinux-9d7459d834c28f55c82f1737f638a6c90e0c0e0f.tar.xz
ovl: multi-layer readdir
If multiple lower layers exist, merge them as well in readdir according to the same rules as merging upper with lower. I.e. take whiteouts and opaque directories into account on all but the lowers layer. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Diffstat (limited to 'fs/overlayfs/super.c')
-rw-r--r--fs/overlayfs/super.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
index 07e4c576e93e..c245043aa1b9 100644
--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
@@ -81,6 +81,9 @@ enum ovl_path_type ovl_path_type(struct dentry *dentry)
} else if (!oe->opaque) {
type |= __OVL_PATH_PURE;
}
+ } else {
+ if (oe->numlower > 1)
+ type |= __OVL_PATH_MERGE;
}
return type;
}