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UPSTREAM: mm: wire up syscall process_mrelease

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Split off from prev patch in the series that implements the syscall.

Link: https://lkml.kernel.org/r/20210809185259.405936-2-surenb@google.com
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Florian Weimer <fweimer@redhat.com>
Cc: Jan Engelhardt <jengelh@inai.de>
Cc: Jann Horn <jannh@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Roman Gushchin <guro@fb.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Tim Murray <timmurray@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit dce49103962840dd61423d7627748d6c558d58c5)

Bug: 189803002
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I6f02c1ec136a7e102f133ee46a7070a151781345
This commit is contained in:
Suren Baghdasaryan
2021-09-02 15:00:33 -07:00
parent 7fc3ac4968
commit fe50dcab7a
21 changed files with 38 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
arch/alpha/kernel/syscalls/syscall.tbl
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@@ -480,3 +480,5 @@
548 common pidfd_getfd sys_pidfd_getfd
549 common faccessat2 sys_faccessat2
550 common process_madvise sys_process_madvise
# 557 reserved for memfd_secret
558 common process_mrelease sys_process_mrelease

2
arch/arm/tools/syscall.tbl
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@@ -454,3 +454,5 @@
438 common pidfd_getfd sys_pidfd_getfd
439 common faccessat2 sys_faccessat2
440 common process_madvise sys_process_madvise
# 447 reserved for memfd_secret
448 common process_mrelease sys_process_mrelease

2
arch/arm64/include/asm/unistd.h
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@@ -38,7 +38,7 @@
#define __ARM_NR_compat_set_tls (__ARM_NR_COMPAT_BASE + 5)
#define __ARM_NR_COMPAT_END (__ARM_NR_COMPAT_BASE + 0x800)
#define __NR_compat_syscalls 441
#define __NR_compat_syscalls 449
#endif
#define __ARCH_WANT_SYS_CLONE

2
arch/arm64/include/asm/unistd32.h
View File

@@ -889,6 +889,8 @@ __SYSCALL(__NR_pidfd_getfd, sys_pidfd_getfd)
__SYSCALL(__NR_faccessat2, sys_faccessat2)
#define __NR_process_madvise 440
__SYSCALL(__NR_process_madvise, sys_process_madvise)
#define __NR_process_mrelease 448
__SYSCALL(__NR_process_mrelease, sys_process_mrelease)
/*
* Please add new compat syscalls above this comment and update

2
arch/ia64/kernel/syscalls/syscall.tbl
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@@ -361,3 +361,5 @@
438 common pidfd_getfd sys_pidfd_getfd
439 common faccessat2 sys_faccessat2
440 common process_madvise sys_process_madvise
# 447 reserved for memfd_secret
448 common process_mrelease sys_process_mrelease

2
arch/m68k/kernel/syscalls/syscall.tbl
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@@ -440,3 +440,5 @@
438 common pidfd_getfd sys_pidfd_getfd
439 common faccessat2 sys_faccessat2
440 common process_madvise sys_process_madvise
# 447 reserved for memfd_secret
448 common process_mrelease sys_process_mrelease

2
arch/microblaze/kernel/syscalls/syscall.tbl
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@@ -446,3 +446,5 @@
438 common pidfd_getfd sys_pidfd_getfd
439 common faccessat2 sys_faccessat2
440 common process_madvise sys_process_madvise
# 447 reserved for memfd_secret
448 common process_mrelease sys_process_mrelease

2
arch/mips/kernel/syscalls/syscall_n32.tbl
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@@ -379,3 +379,5 @@
438 n32 pidfd_getfd sys_pidfd_getfd
439 n32 faccessat2 sys_faccessat2
440 n32 process_madvise sys_process_madvise
# 447 reserved for memfd_secret
448 n32 process_mrelease sys_process_mrelease

2
arch/mips/kernel/syscalls/syscall_n64.tbl
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@@ -355,3 +355,5 @@
438 n64 pidfd_getfd sys_pidfd_getfd
439 n64 faccessat2 sys_faccessat2
440 n64 process_madvise sys_process_madvise
# 447 reserved for memfd_secret
448 n64 process_mrelease sys_process_mrelease

2
arch/mips/kernel/syscalls/syscall_o32.tbl
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@@ -428,3 +428,5 @@
438 o32 pidfd_getfd sys_pidfd_getfd
439 o32 faccessat2 sys_faccessat2
440 o32 process_madvise sys_process_madvise
# 447 reserved for memfd_secret
448 o32 process_mrelease sys_process_mrelease

2
arch/parisc/kernel/syscalls/syscall.tbl
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@@ -438,3 +438,5 @@
438 common pidfd_getfd sys_pidfd_getfd
439 common faccessat2 sys_faccessat2
440 common process_madvise sys_process_madvise
# 447 reserved for memfd_secret
448 common process_mrelease sys_process_mrelease

2
arch/powerpc/kernel/syscalls/syscall.tbl
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@@ -530,3 +530,5 @@
438 common pidfd_getfd sys_pidfd_getfd
439 common faccessat2 sys_faccessat2
440 common process_madvise sys_process_madvise
# 447 reserved for memfd_secret
448 common process_mrelease sys_process_mrelease

2
arch/s390/kernel/syscalls/syscall.tbl
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@@ -443,3 +443,5 @@
438 common pidfd_getfd sys_pidfd_getfd sys_pidfd_getfd
439 common faccessat2 sys_faccessat2 sys_faccessat2
440 common process_madvise sys_process_madvise sys_process_madvise
# 447 reserved for memfd_secret
448 common process_mrelease sys_process_mrelease sys_process_mrelease

2
arch/sh/kernel/syscalls/syscall.tbl
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@@ -443,3 +443,5 @@
438 common pidfd_getfd sys_pidfd_getfd
439 common faccessat2 sys_faccessat2
440 common process_madvise sys_process_madvise
# 447 reserved for memfd_secret
448 common process_mrelease sys_process_mrelease

2
arch/sparc/kernel/syscalls/syscall.tbl
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@@ -486,3 +486,5 @@
438 common pidfd_getfd sys_pidfd_getfd
439 common faccessat2 sys_faccessat2
440 common process_madvise sys_process_madvise
# 447 reserved for memfd_secret
448 common process_mrelease sys_process_mrelease

1
arch/x86/entry/syscalls/syscall_32.tbl
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@@ -445,3 +445,4 @@
438 i386 pidfd_getfd sys_pidfd_getfd
439 i386 faccessat2 sys_faccessat2
440 i386 process_madvise sys_process_madvise
448 i386 process_mrelease sys_process_mrelease

1
arch/x86/entry/syscalls/syscall_64.tbl
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@@ -362,6 +362,7 @@
438 common pidfd_getfd sys_pidfd_getfd
439 common faccessat2 sys_faccessat2
440 common process_madvise sys_process_madvise
448 common process_mrelease sys_process_mrelease
#
# Due to a historical design error, certain syscalls are numbered differently

2
arch/xtensa/kernel/syscalls/syscall.tbl
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@@ -411,3 +411,5 @@
438 common pidfd_getfd sys_pidfd_getfd
439 common faccessat2 sys_faccessat2
440 common process_madvise sys_process_madvise
# 447 reserved for memfd_secret
448 common process_mrelease sys_process_mrelease

1
include/linux/syscalls.h
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@@ -905,6 +905,7 @@ asmlinkage long sys_mincore(unsigned long start, size_t len,
asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior);
asmlinkage long sys_process_madvise(int pidfd, const struct iovec __user *vec,
size_t vlen, int behavior, unsigned int flags);
asmlinkage long sys_process_mrelease(int pidfd, unsigned int flags);
asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size,
unsigned long prot, unsigned long pgoff,
unsigned long flags);

4
include/uapi/asm-generic/unistd.h
View File

@@ -859,9 +859,11 @@ __SYSCALL(__NR_pidfd_getfd, sys_pidfd_getfd)
__SYSCALL(__NR_faccessat2, sys_faccessat2)
#define __NR_process_madvise 440
__SYSCALL(__NR_process_madvise, sys_process_madvise)
#define __NR_process_mrelease 448
__SYSCALL(__NR_process_mrelease, sys_process_mrelease)
#undef __NR_syscalls
#define __NR_syscalls 441
#define __NR_syscalls 449
/*
* 32 bit systems traditionally used different

1
kernel/sys_ni.c
View File

@@ -281,6 +281,7 @@ COND_SYSCALL(munlockall);
COND_SYSCALL(mincore);
COND_SYSCALL(madvise);
COND_SYSCALL(process_madvise);
COND_SYSCALL(process_mrelease);
COND_SYSCALL(remap_file_pages);
COND_SYSCALL(mbind);
COND_SYSCALL_COMPAT(mbind);