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| author |   Russell King <rmk+kernel@arm.linux.org.uk> | 2010-11-21 14:42:47 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-11-21 14:42:47 +0000 |
| commit | c0ba10b512eb2e2a3888b6e6cc0e089f5e7a191b (patch) | |
| tree | a5e2ebdb4147df5653ce481a78465d28aa5b15c2 /tools/perf/scripts/python/failed-syscalls-by-pid.py | |
| parent | Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev (diff) | |
| download | linux-dev-c0ba10b512eb2e2a3888b6e6cc0e089f5e7a191b.tar.xz linux-dev-c0ba10b512eb2e2a3888b6e6cc0e089f5e7a191b.zip | |
ARM: improve compiler's ability to optimize page tables
Allow the compiler to better optimize the page table walking code
by avoiding over-complex pmd_addr_end() calculations. These
calculations prevent the compiler spotting that we'll never iterate
over the PMD table, causing it to create double nested loops where
a single loop will do.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'tools/perf/scripts/python/failed-syscalls-by-pid.py')
0 files changed, 0 insertions, 0 deletions