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103 Commits

Author SHA1 Message Date
Miklos Szeredi e28edc46b8 ovl: consolidate lookup for underlying layers 
Use a common helper for lookup of upper and lower layers.  This paves the
way for looking up directory redirects.

No functional change.

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
 2016-12-16 11:02:56 +01:00
Miklos Szeredi 6b2d5fe46f ovl: check namelen 
We already calculate f_namelen in statfs as the maximum of the name lengths
provided by the filesystems taking part in the overlay.

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
 2016-12-16 11:02:56 +01:00
Miklos Szeredi bbb1e54dd5 ovl: split super.c 
fs/overlayfs/super.c is the biggest of the overlayfs source files and it
contains various utility functions as well as the rather complicated lookup
code.  Split these parts out to separate files.

Before:

 1446 fs/overlayfs/super.c

After:

  919 fs/overlayfs/super.c
  267 fs/overlayfs/namei.c
  235 fs/overlayfs/util.c
   51 fs/overlayfs/ovl_entry.h

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
 2016-12-16 11:02:56 +01:00