From: Felix Kuehling <Felix.Kuehling@amd.com>
To: amd-gfx@lists.freedesktop.org
Subject: [PATCH 1/2] drm/amdkfd: Fix recursive lock warnings
Date: Fri, 12 Mar 2021 21:43:50 -0500 [thread overview]
Message-ID: <20210313024351.10908-2-Felix.Kuehling@amd.com> (raw)
In-Reply-To: <20210313024351.10908-1-Felix.Kuehling@amd.com>
memalloc_nofs_save/restore are no longer sufficient to prevent recursive
lock warnings when holding locks that can be taken in MMU notifiers. Use
memalloc_noreclaim_save/restore instead.
Fixes: f920e413ff9c ("mm: track mmu notifiers in fs_reclaim_acquire/release")
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 318eeea577b5..bc3951b71079 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -93,13 +93,13 @@ struct amdgpu_prt_cb {
static inline void amdgpu_vm_eviction_lock(struct amdgpu_vm *vm)
{
mutex_lock(&vm->eviction_lock);
- vm->saved_flags = memalloc_nofs_save();
+ vm->saved_flags = memalloc_noreclaim_save();
}
static inline int amdgpu_vm_eviction_trylock(struct amdgpu_vm *vm)
{
if (mutex_trylock(&vm->eviction_lock)) {
- vm->saved_flags = memalloc_nofs_save();
+ vm->saved_flags = memalloc_noreclaim_save();
return 1;
}
return 0;
@@ -107,7 +107,7 @@ static inline int amdgpu_vm_eviction_trylock(struct amdgpu_vm *vm)
static inline void amdgpu_vm_eviction_unlock(struct amdgpu_vm *vm)
{
- memalloc_nofs_restore(vm->saved_flags);
+ memalloc_noreclaim_restore(vm->saved_flags);
mutex_unlock(&vm->eviction_lock);
}
--
2.30.2
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
next prev parent reply other threads:[~2021-03-13 2:44 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-13 2:43 [PATCH 0/2] Two bugs found while rebasing my HMM branch Felix Kuehling
2021-03-13 2:43 ` Felix Kuehling [this message]
2021-03-15 10:17 ` [PATCH 1/2] drm/amdkfd: Fix recursive lock warnings Christian König
2021-03-13 2:43 ` [PATCH 2/2] drm/amdkfd: Fix resource cursor initialization Felix Kuehling
2021-03-15 10:22 ` Christian König
2021-03-15 13:08 ` Felix Kuehling
2021-03-15 13:15 ` Christian König
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210313024351.10908-2-Felix.Kuehling@amd.com \
--to=felix.kuehling@amd.com \
--cc=amd-gfx@lists.freedesktop.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.