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H A D | vmlinux.lds.h | 8369744f Wed Jan 12 18:59:38 CST 2011 Shaohua Li <shaohua.li@intel.com> include/asm-generic/vmlinux.lds.h: make readmostly section correctly align
The readmostly section should end at a cacheline aligned address, otherwise the last several data might share cachline with other data and make the readmostly data still have cache bounce.
For example, in ia64, secpath_cachep is the last readmostly data, and it shares cacheline with init_uts_ns.
a000000100e80480 d secpath_cachep a000000100e80488 D init_uts_ns
Signed-off-by: Shaohua Li <shaohua.li@intel.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Tejun Heo <tj@kernel.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 8369744f Wed Jan 12 18:59:38 CST 2011 Shaohua Li <shaohua.li@intel.com> include/asm-generic/vmlinux.lds.h: make readmostly section correctly align The readmostly section should end at a cacheline aligned address, otherwise the last several data might share cachline with other data and make the readmostly data still have cache bounce. For example, in ia64, secpath_cachep is the last readmostly data, and it shares cacheline with init_uts_ns. a000000100e80480 d secpath_cachep a000000100e80488 D init_uts_ns Signed-off-by: Shaohua Li <shaohua.li@intel.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Tejun Heo <tj@kernel.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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