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| author | Peter Zijlstra <peterz@infradead.org> | 2019-02-19 14:38:37 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2019-04-03 10:33:04 +0200 |
| commit | 6455959819bf2469190ae9f6b4ccebaa9827e884 (patch) | |
| tree | fb30c8cc38170501c76fbd64d99fe338b1053b90 /arch/ia64/sn/kernel | |
| parent | 0a8caf211bcf52cbb59e100ead4908fe88d2a510 (diff) | |
| download | linux-stable-6455959819bf2469190ae9f6b4ccebaa9827e884.tar.gz linux-stable-6455959819bf2469190ae9f6b4ccebaa9827e884.tar.bz2 linux-stable-6455959819bf2469190ae9f6b4ccebaa9827e884.zip | |
ia64/tlb: Eradicate tlb_migrate_finish() callback
Only ia64-sn2 uses this as an optimization, and there it is of
questionable correctness due to the mm_users==1 test.
Remove it entirely.
No change in behavior intended.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/ia64/sn/kernel')
| -rw-r--r-- | arch/ia64/sn/kernel/sn2/sn2_smp.c | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/arch/ia64/sn/kernel/sn2/sn2_smp.c b/arch/ia64/sn/kernel/sn2/sn2_smp.c index b73b0ebf8214..b510f4f17fd4 100644 --- a/arch/ia64/sn/kernel/sn2/sn2_smp.c +++ b/arch/ia64/sn/kernel/sn2/sn2_smp.c @@ -120,13 +120,6 @@ void sn_migrate(struct task_struct *task) cpu_relax(); } -void sn_tlb_migrate_finish(struct mm_struct *mm) -{ - /* flush_tlb_mm is inefficient if more than 1 users of mm */ - if (mm == current->mm && mm && atomic_read(&mm->mm_users) == 1) - flush_tlb_mm(mm); -} - static void sn2_ipi_flush_all_tlb(struct mm_struct *mm) { |