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Replace qemu_real_host_page variables with inlined functions

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Replace the global variables with inlined helper functions. getpagesize() is very
likely annotated with a "const" function attribute (at least with glibc), and thus
optimization should apply even better.

This avoids the need for a constructor initialization too.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220323155743.1585078-12-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Marc-André Lureau 2022-03-23 19:57:22 +04:00 • committed by Paolo Bonzini
parent b307e5052d
commit 8e3b0cbb72
53 changed files with 150 additions and 162 deletions
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6
block/file-posix.c
View file

@ -386,7 +386,7 @@ static void raw_probe_alignment(BlockDriverState *bs, int fd, Error **errp)
{
BDRVRawState *s = bs->opaque;
char *buf;
size_t max_align = MAX(MAX_BLOCKSIZE, qemu_real_host_page_size);
size_t max_align = MAX(MAX_BLOCKSIZE, qemu_real_host_page_size());
size_t alignments[] = {1, 512, 1024, 2048, 4096};
/* For SCSI generic devices the alignment is not really used.
@ -1261,7 +1261,7 @@ static void raw_refresh_limits(BlockDriverState *bs, Error **errp)
raw_probe_alignment(bs, s->fd, errp);
bs->bl.min_mem_alignment = s->buf_align;
bs->bl.opt_mem_alignment = MAX(s->buf_align, qemu_real_host_page_size);
bs->bl.opt_mem_alignment = MAX(s->buf_align, qemu_real_host_page_size());
/*
* Maximum transfers are best effort, so it is okay to ignore any
@ -1886,7 +1886,7 @@ static int allocate_first_block(int fd, size_t max_size)
size_t write_size = (max_size < MAX_BLOCKSIZE)
? BDRV_SECTOR_SIZE
: MAX_BLOCKSIZE;
size_t max_align = MAX(MAX_BLOCKSIZE, qemu_real_host_page_size);
size_t max_align = MAX(MAX_BLOCKSIZE, qemu_real_host_page_size());
void *buf;
ssize_t n;
int ret;