Re: [PATCH 2/2] core: replace sysconf(_SC_PAGESIZE) with qemu_real_host_page_size
On Mon, Nov 11, 2019 at 11:06:41AM +0100, Stefano Garzarella wrote: >Why "core:" in the commit title? > >Perhaps to indicate that the patch concerns different subsystems, >I'd use "qemu: ", but I'm not sure :-) > I didn't find a better one. Maybe "qemu" is better :-) >On Tue, Oct 15, 2019 at 11:13:50AM +0800, Wei Yang wrote: >> Signed-off-by: Wei Yang >> Suggested-by: "Dr. David Alan Gilbert" >> CC: Richard Henderson >> --- >> block/file-posix.c | 2 +- >> net/l2tpv3.c| 2 +- >> tests/tcg/multiarch/test-mmap.c | 2 +- >> 3 files changed, 3 insertions(+), 3 deletions(-) >> >> diff --git a/block/file-posix.c b/block/file-posix.c >> index 5d1995a07c..853ed42134 100644 >> --- a/block/file-posix.c >> +++ b/block/file-posix.c >> @@ -2562,7 +2562,7 @@ static void check_cache_dropped(BlockDriverState *bs, >> Error **errp) >> off_t end; >> >> /* mincore(2) page status information requires 1 byte per page */ >> -page_size = sysconf(_SC_PAGESIZE); >> +page_size = qemu_real_host_page_size; >> vec = g_malloc(DIV_ROUND_UP(window_size, page_size)); >> >> end = raw_getlength(bs); >> diff --git a/net/l2tpv3.c b/net/l2tpv3.c >> index 55fea17c0f..5f843240de 100644 >> --- a/net/l2tpv3.c >> +++ b/net/l2tpv3.c >> @@ -41,7 +41,7 @@ >> * chosen to be sufficient to accommodate one packet with some headers >> */ >> >> -#define BUFFER_ALIGN sysconf(_SC_PAGESIZE) >> +#define BUFFER_ALIGN qemu_real_host_page_size >> #define BUFFER_SIZE 2048 >> #define IOVSIZE 2 >> #define MAX_L2TPV3_MSGCNT 64 >> diff --git a/tests/tcg/multiarch/test-mmap.c >> b/tests/tcg/multiarch/test-mmap.c >> index 9ea49e2307..370842e5c2 100644 >> --- a/tests/tcg/multiarch/test-mmap.c >> +++ b/tests/tcg/multiarch/test-mmap.c >> @@ -466,7 +466,7 @@ int main(int argc, char **argv) >> if (argc > 1) { >> qemu_strtoul(argv[1], NULL, 0, &pagesize); >> } else { >> -pagesize = sysconf(_SC_PAGESIZE); >> +pagesize = qemu_real_host_page_size; >> } >> >> /* Assume pagesize is a power of two. */ > >The patch LGTM: >Reviewed-by: Stefano Garzarella > >Thanks, >Stefano > -- Wei Yang Help you, Help me
Re: [PATCH 2/2] core: replace sysconf(_SC_PAGESIZE) with qemu_real_host_page_size
Why "core:" in the commit title? Perhaps to indicate that the patch concerns different subsystems, I'd use "qemu: ", but I'm not sure :-) On Tue, Oct 15, 2019 at 11:13:50AM +0800, Wei Yang wrote: > Signed-off-by: Wei Yang > Suggested-by: "Dr. David Alan Gilbert" > CC: Richard Henderson > --- > block/file-posix.c | 2 +- > net/l2tpv3.c| 2 +- > tests/tcg/multiarch/test-mmap.c | 2 +- > 3 files changed, 3 insertions(+), 3 deletions(-) > > diff --git a/block/file-posix.c b/block/file-posix.c > index 5d1995a07c..853ed42134 100644 > --- a/block/file-posix.c > +++ b/block/file-posix.c > @@ -2562,7 +2562,7 @@ static void check_cache_dropped(BlockDriverState *bs, > Error **errp) > off_t end; > > /* mincore(2) page status information requires 1 byte per page */ > -page_size = sysconf(_SC_PAGESIZE); > +page_size = qemu_real_host_page_size; > vec = g_malloc(DIV_ROUND_UP(window_size, page_size)); > > end = raw_getlength(bs); > diff --git a/net/l2tpv3.c b/net/l2tpv3.c > index 55fea17c0f..5f843240de 100644 > --- a/net/l2tpv3.c > +++ b/net/l2tpv3.c > @@ -41,7 +41,7 @@ > * chosen to be sufficient to accommodate one packet with some headers > */ > > -#define BUFFER_ALIGN sysconf(_SC_PAGESIZE) > +#define BUFFER_ALIGN qemu_real_host_page_size > #define BUFFER_SIZE 2048 > #define IOVSIZE 2 > #define MAX_L2TPV3_MSGCNT 64 > diff --git a/tests/tcg/multiarch/test-mmap.c b/tests/tcg/multiarch/test-mmap.c > index 9ea49e2307..370842e5c2 100644 > --- a/tests/tcg/multiarch/test-mmap.c > +++ b/tests/tcg/multiarch/test-mmap.c > @@ -466,7 +466,7 @@ int main(int argc, char **argv) > if (argc > 1) { > qemu_strtoul(argv[1], NULL, 0, &pagesize); > } else { > -pagesize = sysconf(_SC_PAGESIZE); > +pagesize = qemu_real_host_page_size; > } > > /* Assume pagesize is a power of two. */ The patch LGTM: Reviewed-by: Stefano Garzarella Thanks, Stefano
[PATCH 2/2] core: replace sysconf(_SC_PAGESIZE) with qemu_real_host_page_size
Signed-off-by: Wei Yang Suggested-by: "Dr. David Alan Gilbert" CC: Richard Henderson --- block/file-posix.c | 2 +- net/l2tpv3.c| 2 +- tests/tcg/multiarch/test-mmap.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/block/file-posix.c b/block/file-posix.c index 5d1995a07c..853ed42134 100644 --- a/block/file-posix.c +++ b/block/file-posix.c @@ -2562,7 +2562,7 @@ static void check_cache_dropped(BlockDriverState *bs, Error **errp) off_t end; /* mincore(2) page status information requires 1 byte per page */ -page_size = sysconf(_SC_PAGESIZE); +page_size = qemu_real_host_page_size; vec = g_malloc(DIV_ROUND_UP(window_size, page_size)); end = raw_getlength(bs); diff --git a/net/l2tpv3.c b/net/l2tpv3.c index 55fea17c0f..5f843240de 100644 --- a/net/l2tpv3.c +++ b/net/l2tpv3.c @@ -41,7 +41,7 @@ * chosen to be sufficient to accommodate one packet with some headers */ -#define BUFFER_ALIGN sysconf(_SC_PAGESIZE) +#define BUFFER_ALIGN qemu_real_host_page_size #define BUFFER_SIZE 2048 #define IOVSIZE 2 #define MAX_L2TPV3_MSGCNT 64 diff --git a/tests/tcg/multiarch/test-mmap.c b/tests/tcg/multiarch/test-mmap.c index 9ea49e2307..370842e5c2 100644 --- a/tests/tcg/multiarch/test-mmap.c +++ b/tests/tcg/multiarch/test-mmap.c @@ -466,7 +466,7 @@ int main(int argc, char **argv) if (argc > 1) { qemu_strtoul(argv[1], NULL, 0, &pagesize); } else { -pagesize = sysconf(_SC_PAGESIZE); +pagesize = qemu_real_host_page_size; } /* Assume pagesize is a power of two. */ -- 2.17.1