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Abhijit Karmarkar b4955ce3dd [PATCH] msync: check pte dirty earlier ... It's common practice to msync a large address range regularly, in which often only a few ptes have actually been dirtied since the previous pass. sync_pte_range then goes much faster if it tests whether pte is dirty before locating and accessing each struct page cacheline; and it is hardly slowed by ptep_clear_flush_dirty repeating that test in the opposite case, when every pte actually is dirty. But beware, s390's pte_dirty always says false, since its dirty bit is kept in the storage key, located via the struct page address. So skip this optimization in its case: use a pte_maybe_dirty macro which just says true if page_test_and_clear_dirty is implemented. Signed-off-by: Abhijit Karmarkar <abhijitk@veritas.com> Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		20 years ago
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4level-fixup.h	…
bitops.h	…
bug.h	[PATCH] Exterminate PAGE_BUG	20 years ago
cputime.h	…
div64.h	…
dma-mapping-broken.h	…
dma-mapping.h	…
errno-base.h	…
errno.h	[PATCH] add EOWNERDEAD and ENOTRECOVERABLE version 2	20 years ago
hdreg.h	…
ide_iops.h	…
iomap.h	…
ipc.h	…
local.h	…
pci-dma-compat.h	…
pci.h	…
percpu.h	…
pgtable-nopmd.h	…
pgtable-nopud.h	…
pgtable.h	[PATCH] msync: check pte dirty earlier	20 years ago
resource.h	[PATCH] nice and rt-prio rlimits	20 years ago
rtc.h	…
sections.h	[PATCH] ppc32: platform-specific functions missing from kallsyms.	20 years ago
siginfo.h	[PATCH] consolidate SIGEV_PAD_SIZE	20 years ago
signal.h	[PATCH] asm/signal.h unification	20 years ago
statfs.h	…
termios.h	…
tlb.h	…
topology.h	…
uaccess.h	…
unaligned.h	[PATCH] __get_unaligned() turned into macro	20 years ago
vmlinux.lds.h	…
xor.h	…