From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Heiko Carstens <hca@linux.ibm.com>,
Alexander Gordeev <agordeev@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Sasha Levin <sashal@kernel.org>,
will@kernel.org, aneesh.kumar@kernel.org, npiggin@gmail.com,
peterz@infradead.org, linux-arch@vger.kernel.org,
linux-mm@kvack.org, linux-s390@vger.kernel.org
Subject: [PATCH AUTOSEL 6.14 109/642] s390/tlb: Use mm_has_pgste() instead of mm_alloc_pgste()
Date: Mon, 5 May 2025 18:05:25 -0400 [thread overview]
Message-ID: <20250505221419.2672473-109-sashal@kernel.org> (raw)
In-Reply-To: <20250505221419.2672473-1-sashal@kernel.org>
From: Heiko Carstens <hca@linux.ibm.com>
[ Upstream commit 9291ea091b29bb3e37c4b3416c7c1e49e472c7d5 ]
An mm has pgstes only after s390_enable_sie() has been called, while
mm_alloc_pgste() may be always true (e.g. via sysctl setting).
Limit the calls to gmap_unlink() in pte_free_tlb() to those cases
where there might be something to unlink.
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/s390/include/asm/tlb.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/s390/include/asm/tlb.h b/arch/s390/include/asm/tlb.h
index 72655fd2d867c..f20601995bb0e 100644
--- a/arch/s390/include/asm/tlb.h
+++ b/arch/s390/include/asm/tlb.h
@@ -84,7 +84,7 @@ static inline void pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte,
tlb->mm->context.flush_mm = 1;
tlb->freed_tables = 1;
tlb->cleared_pmds = 1;
- if (mm_alloc_pgste(tlb->mm))
+ if (mm_has_pgste(tlb->mm))
gmap_unlink(tlb->mm, (unsigned long *)pte, address);
tlb_remove_ptdesc(tlb, virt_to_ptdesc(pte));
}
--
2.39.5
next prev parent reply other threads:[~2025-05-05 22:19 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20250505221419.2672473-1-sashal@kernel.org>
2025-05-05 22:04 ` [PATCH AUTOSEL 6.14 083/642] x86/headers: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-UAPI headers Sasha Levin
2025-05-05 22:05 ` Sasha Levin [this message]
2025-05-05 22:09 ` [PATCH AUTOSEL 6.14 357/642] x86/locking: Use ALT_OUTPUT_SP() for percpu_{,try_}cmpxchg{64,128}_op() Sasha Levin
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=20250505221419.2672473-109-sashal@kernel.org \
--to=sashal@kernel.org \
--cc=agordeev@linux.ibm.com \
--cc=aneesh.kumar@kernel.org \
--cc=gor@linux.ibm.com \
--cc=hca@linux.ibm.com \
--cc=linux-arch@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linux-s390@vger.kernel.org \
--cc=npiggin@gmail.com \
--cc=peterz@infradead.org \
--cc=stable@vger.kernel.org \
--cc=will@kernel.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox