The patch titled
likely cleanup: remove unlikely in sys_mprotect()
has been removed from the -mm tree. Its filename is
likely-cleanup-remove-unlikely-in-sys_mprotect.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: likely cleanup: remove unlikely in sys_mprotect()
From: Hua Zhong <hzhong@xxxxxxxxx>
With likely/unlikely profiling on my not-so-busy-typical-developmentsystem
there are 5k misses vs 2k hits. So I guess we should remove the unlikely.
Signed-off-by: Hua Zhong <hzhong@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
mm/mprotect.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff -puN mm/mprotect.c~likely-cleanup-remove-unlikely-in-sys_mprotect mm/mprotect.c
--- a/mm/mprotect.c~likely-cleanup-remove-unlikely-in-sys_mprotect
+++ a/mm/mprotect.c
@@ -205,8 +205,7 @@ sys_mprotect(unsigned long start, size_t
/*
* Does the application expect PROT_READ to imply PROT_EXEC:
*/
- if (unlikely((prot & PROT_READ) &&
- (current->personality & READ_IMPLIES_EXEC)))
+ if ((prot & PROT_READ) && (current->personality & READ_IMPLIES_EXEC))
prot |= PROT_EXEC;
vm_flags = calc_vm_prot_bits(prot);
_
Patches currently in -mm which might be from hzhong@xxxxxxxxx are
origin.patch
ide-error-handling-fixes.patch
profile-likely-unlikely-macros.patch
-
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