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From a8faed3a02eeb75857a3b5d660fa80fe79db77a3 Mon Sep 17 00:00:00 2001 |
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From: Randy Dunlap <rdunlap@infradead.org> |
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Date: Sun, 7 Aug 2022 15:09:34 -0700 |
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Subject: kernel/sys_ni: add compat entry for fadvise64_64 |
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|
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From: Randy Dunlap <rdunlap@infradead.org> |
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|
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commit a8faed3a02eeb75857a3b5d660fa80fe79db77a3 upstream. |
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|
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When CONFIG_ADVISE_SYSCALLS is not set/enabled and CONFIG_COMPAT is |
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set/enabled, the riscv compat_syscall_table references |
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'compat_sys_fadvise64_64', which is not defined: |
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|
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riscv64-linux-ld: arch/riscv/kernel/compat_syscall_table.o:(.rodata+0x6f8): |
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undefined reference to `compat_sys_fadvise64_64' |
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|
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Add 'fadvise64_64' to kernel/sys_ni.c as a conditional COMPAT function so |
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that when CONFIG_ADVISE_SYSCALLS is not set, there is a fallback function |
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available. |
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|
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Link: https://lkml.kernel.org/r/20220807220934.5689-1-rdunlap@infradead.org |
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Fixes: d3ac21cacc24 ("mm: Support compiling out madvise and fadvise") |
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Signed-off-by: Randy Dunlap <rdunlap@infradead.org> |
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Suggested-by: Arnd Bergmann <arnd@arndb.de> |
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Reviewed-by: Arnd Bergmann <arnd@arndb.de> |
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Cc: Josh Triplett <josh@joshtriplett.org> |
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Cc: Paul Walmsley <paul.walmsley@sifive.com> |
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Cc: Palmer Dabbelt <palmer@dabbelt.com> |
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Cc: Albert Ou <aou@eecs.berkeley.edu> |
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Cc: <stable@vger.kernel.org> |
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Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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--- |
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kernel/sys_ni.c | 1 + |
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1 file changed, 1 insertion(+) |
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|
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--- a/kernel/sys_ni.c |
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+++ b/kernel/sys_ni.c |
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@@ -277,6 +277,7 @@ COND_SYSCALL(landlock_restrict_self); |
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|
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/* mm/fadvise.c */ |
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COND_SYSCALL(fadvise64_64); |
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+COND_SYSCALL_COMPAT(fadvise64_64); |
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|
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/* mm/, CONFIG_MMU only */ |
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COND_SYSCALL(swapon); |