Bionic and Cosmic SRU request:
https://lists.ubuntu.com/archives/kernel-team/2018-September/095563.html
** Description changed:
+
+ == SRU Justification ==
+ IBM reports the qethqoat tool fails. qeth_query_oat_command() currently
+ allocates the kernel buffer for the SIOC_QETH_QUERY_OAT ioctl with kzalloc.
+
+ This commit will cause the use of vzalloc() instead of kzalloc(), backing
+ the allocation with non-contiguous memory.
+
+ Xenial also needs this commit, but requres a slightly different
+ backport. It's SRU will be sent separate.
+
+ == Fix ==
+ aec45e857c55 ("s390/qeth: use vzalloc for QUERY OAT buffer")
+
+ == Regression Potential ==
+ Low, limited to s390.
+
+ == Test Case ==
+ IBM verified testing of this commit up-front.
+
+
+
+
Description: qeth: use vzalloc for QUERY OAT buffer
Symptom: qethqoat tool fails.
- Problem: qeth_query_oat_command() currently allocates the kernel
- buffer for the SIOC_QETH_QUERY_OAT ioctl with kzalloc.
+ Problem: qeth_query_oat_command() currently allocates the kernel
+ buffer for the SIOC_QETH_QUERY_OAT ioctl with kzalloc.
Solution: Using vzalloc() instead of kzalloc(), backing the
allocation with non-contiguous memory.
-
Commit -ID: aec45e857c5538664edb76a60dd452e3265f37d1
kernel 4.19.
To be fixed for 18.10, 18,04 and 16.04.
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https://bugs.launchpad.net/bugs/1793086
Title:
qeth: use vzalloc for QUERY OAT buffer
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