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SUSE:ALP:Source:Standard:Core:0.1
drbd
bsc-1201335_02-compat-only-apply-bdi-pointer-pa...
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File bsc-1201335_02-compat-only-apply-bdi-pointer-patch-if-bdi-is-in-req.patch of Package drbd
From eacd74206a8f48c3861de2096215790426331237 Mon Sep 17 00:00:00 2001 From: <christoph.boehmwalder@linbit.com> Date: Wed, 6 Apr 2022 13:36:08 +0200 Subject: [PATCH] compat: only apply bdi pointer patch if bdi is in request_queue The history is as follows: 1. In the beginning, request_queue.backing_dev_info was a regular member 2. Then, backing_dev_info became a pointer 3. Now the backing_dev_info pointer has moved to gendisk.bdi So there is never a case where gendisk has a non-pointer backing_dev_info. Thus, we only want to apply the pointer patch for old kernels where backing_dev_info was still in request_queue. --- drbd/drbd-kernel-compat/gen_patch_names.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drbd/drbd-kernel-compat/gen_patch_names.c b/drbd/drbd-kernel-compat/gen_patch_names.c index 9210d2c2eeb9..763652a8908b 100644 --- a/drbd/drbd-kernel-compat/gen_patch_names.c +++ b/drbd/drbd-kernel-compat/gen_patch_names.c @@ -400,8 +400,10 @@ int main(int argc, char **argv) patch(1, "struct_gendisk", true, false, COMPAT_STRUCT_GENDISK_HAS_BACKING_DEV_INFO, "has_backing_dev_info"); +#if !defined(COMPAT_STRUCT_GENDISK_HAS_BACKING_DEV_INFO) patch(1, "backing_dev_info", true, false, COMPAT_HAVE_POINTER_BACKING_DEV_INFO, "is_pointer"); +#endif patch(1, "sendpage_ok", true, false, COMPAT_HAVE_SENDPAGE_OK, "present"); -- 2.34.1
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