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authorJohn Audia <graysky@archlinux.us>2022-04-08 12:35:54 -0400
committerDaniel Golle <daniel@makrotopia.org>2022-04-10 16:31:42 +0100
commit662d1f9f8db3e8bd295dc93b9fd5383741bbadf5 (patch)
tree0d21d15c65fad1201fe2ff0ac08c0937455583e5 /target/linux/generic/backport-5.10/350-v5.18-MIPS-pgalloc-fix-memory-leak-caused-by-pgd_free.patch
parent40566daa9abc3d07e5d5c1c0c89501f40e4d7f79 (diff)
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kernel: bump 5.10 to 5.10.110
Removed upstreamed: generic/backport-5.10/350-v5.18-MIPS-pgalloc-fix-memory-leak-caused-by-pgd_free.patch generic/pending-5.10/850-0014-PCI-aardvark-Fix-reading-PCI_EXP_RTSTA_PME-bit-on-em.patch ipq40xx/patches-5.10/105-ipq40xx-fix-sleep-clock.patch All patches automatically rebased. Build system: x86_64 Build-tested: bcm2711/RPi4B, mt7622/RT3200 Run-tested: bcm2711/RPi4B, mt7622/RT3200 Compile-/run-tested: ath79/generic (Archer C7 v2). Signed-off-by: Daniel Golle <daniel@makrotopia.org> [rebased in 22.03 tree] Signed-off-by: John Audia <graysky@archlinux.us> (cherry picked from commit b92ec82235b996ece32bc84af177adf1a4dcb90e)
Diffstat (limited to 'target/linux/generic/backport-5.10/350-v5.18-MIPS-pgalloc-fix-memory-leak-caused-by-pgd_free.patch')
-rw-r--r--target/linux/generic/backport-5.10/350-v5.18-MIPS-pgalloc-fix-memory-leak-caused-by-pgd_free.patch48
1 files changed, 0 insertions, 48 deletions
diff --git a/target/linux/generic/backport-5.10/350-v5.18-MIPS-pgalloc-fix-memory-leak-caused-by-pgd_free.patch b/target/linux/generic/backport-5.10/350-v5.18-MIPS-pgalloc-fix-memory-leak-caused-by-pgd_free.patch
deleted file mode 100644
index 28ddbc2fbc..0000000000
--- a/target/linux/generic/backport-5.10/350-v5.18-MIPS-pgalloc-fix-memory-leak-caused-by-pgd_free.patch
+++ /dev/null
@@ -1,48 +0,0 @@
-From e852442da56f43795cb6255d90b9fd0c84b209bb Mon Sep 17 00:00:00 2001
-From: Yaliang Wang <Yaliang.Wang@windriver.com>
-Date: Thu, 10 Mar 2022 19:31:16 +0800
-Subject: [PATCH] MIPS: pgalloc: fix memory leak caused by pgd_free()
-
-pgd page is freed by generic implementation pgd_free() since commit
-f9cb654cb550 ("asm-generic: pgalloc: provide generic pgd_free()"),
-however, there are scenarios that the system uses more than one page as
-the pgd table, in such cases the generic implementation pgd_free() won't
-be applicable anymore. For example, when PAGE_SIZE_4KB is enabled and
-MIPS_VA_BITS_48 is not enabled in a 64bit system, the macro "PGD_ORDER"
-will be set as "1", which will cause allocating two pages as the pgd
-table. Well, at the same time, the generic implementation pgd_free()
-just free one pgd page, which will result in the memory leak.
-
-The memory leak can be easily detected by executing shell command:
-"while true; do ls > /dev/null; grep MemFree /proc/meminfo; done"
-
-Fixes: f9cb654cb550 ("asm-generic: pgalloc: provide generic pgd_free()")
-Signed-off-by: Yaliang Wang <Yaliang.Wang@windriver.com>
-Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
-(cherry picked from commit 2bc5bab9a763d520937e4f3fe8df51c6a1eceb97)
----
- arch/mips/include/asm/pgalloc.h | 6 ++++++
- 1 file changed, 6 insertions(+)
-
---- a/arch/mips/include/asm/pgalloc.h
-+++ b/arch/mips/include/asm/pgalloc.h
-@@ -15,6 +15,7 @@
-
- #define __HAVE_ARCH_PMD_ALLOC_ONE
- #define __HAVE_ARCH_PUD_ALLOC_ONE
-+#define __HAVE_ARCH_PGD_FREE
- #include <asm-generic/pgalloc.h>
-
- static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
-@@ -49,6 +50,11 @@ static inline void pud_populate(struct m
- extern void pgd_init(unsigned long page);
- extern pgd_t *pgd_alloc(struct mm_struct *mm);
-
-+static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
-+{
-+ free_pages((unsigned long)pgd, PGD_ORDER);
-+}
-+
- #define __pte_free_tlb(tlb,pte,address) \
- do { \
- pgtable_pte_page_dtor(pte); \