From: hujianyang Date: Tue, 6 Jan 2015 08:10:01 +0000 (+0800) Subject: ovl: Fix opaque regression in ovl_lookup X-Git-Tag: omap-for-v4.1/prcm-dts-mfd-syscon-fix~3^2~17^2~3 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a425c037f3dd8a56469158ab5f37beb46402d958;p=pandora-kernel.git ovl: Fix opaque regression in ovl_lookup Current multi-layer support overlayfs has a regression in .lookup(). If there is a directory in upperdir and a regular file has same name in lowerdir in a merged directory, lower file is hidden and upper directory is set to opaque in former case. But it is changed in present code. In lowerdir lookup path, if a found inode is not directory, the type checking of previous inode is missing. This inode will be copied to the lowerstack of ovl_entry directly. That will lead to several wrong conditions, for example, the reading of the directory in upperdir may return an error like: ls: reading directory .: Not a directory This patch makes the lowerdir lookup path check the opaque for non-directory file too. Signed-off-by: hujianyang Signed-off-by: Miklos Szeredi --- Reading git-diff-tree failed