Hi Eric,

FYI, kernel build failed on

tree:   git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace.git userns-always-map-user-v47
head:   ec9c45ed97cdb9e75f8ef22ea86999be29591713
commit: 0067dd0c6d8d6b9a89cdaab4e5259dcc8ef45e34 [38/148] userns: Convert vfs posix_acl support to use kuid and kgid where appripriate.
config: i386-randconfig-k786 (attached as .config)

All related error/warning messages:

fs/built-in.o: In function `getxattr':
xattr.c:(.text+0x1fb99): undefined reference to `posix_acl_fix_xattr_to_user'
fs/built-in.o: In function `setxattr':
xattr.c:(.text+0x1ff2b): undefined reference to `posix_acl_fix_xattr_from_user'

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0-DAY kernel build testing backend         Open Source Technology Centre
Fengguang Wu <wfg@linux.intel.com>                     Intel Corporation