The following commit has been merged in the master branch:
commit 6ea6c182c7fb6c22dafbbf203abcc23726e06cba
Author: Sergio Gelato <[email protected]>
Date: Wed Feb 22 13:55:33 2017 -0800
LINUX: Debian/Ubuntu build regression on kernel 3.16.39
Now that kernel 4.9 has hit jessie-backports, it becomes desirable to
also backport the associated openafs patches.
Unfortunately, Linux-4.9-inode_change_ok-becomes-setattr_prepare.patch
causes a build failure against jessie's current default kernel,
3.16.39-1, due to the fact that setattr_prepare() is available (it was
cherrypicked to address CVE-2015-1350) but file_dentry() is not (it was
introduced in kernel 4.6).
This makes it difficult to have a version of openafs for jessie that
supports both kernels.
To deal with this, follow the implementation of file_dentry() in 4.6,
and simplify it to account for the lack of d_real() support in older
kernels.
Note that inode_change_ok() has been added back to 3.16.39-1 to avoid
ABI changes. That means the current openafs packages in jessie continue
to work with kernel 3.16.39-1 since they do not include
Linux-4.9-inode_change_ok-becomes-setattr_prepare.patch.
Originally reported at
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=855366
FIXES RT134158
Change-Id: I157aa2ff25945c1c6e3b8e4a600557125711a681
Reviewed-on: https://gerrit.openafs.org/12523
Tested-by: BuildBot <[email protected]>
Reviewed-by: Michael Meffie <[email protected]>
Reviewed-by: Benjamin Kaduk <[email protected]>
acinclude.m4 | 3 +++
src/afs/LINUX/osi_compat.h | 4 ++++
2 files changed, 7 insertions(+), 0 deletions(-)
--
OpenAFS Master Repository
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