haraldwolff/qemu-patch-raspberry4
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migration: simplify writev vs. non-writev logic

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Check f->iovcnt in add_to_iovec, f->buf_index in qemu_put_buffer/byte.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Paolo Bonzini 2013-04-08 13:29:57 +02:00 committed by Juan Quintela
parent d9658c4732
commit 4d1172472c
1 changed files with 9 additions and 13 deletions
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22
savevm.c
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@ -626,7 +626,7 @@ static void add_to_iovec(QEMUFile *f, const uint8_t *buf, int size)
f->iov[f->iovcnt++].iov_len = size;
}
if (f->buf_index >= IO_BUF_SIZE || f->iovcnt >= MAX_IOV_SIZE) {
if (f->iovcnt >= MAX_IOV_SIZE) {
qemu_fflush(f);
}
}
@ -662,12 +662,10 @@ void qemu_put_buffer(QEMUFile *f, const uint8_t *buf, int size)
f->bytes_xfer += size;
if (f->ops->writev_buffer) {
add_to_iovec(f, f->buf + f->buf_index, l);
f->buf_index += l;
} else {
f->buf_index += l;
if (f->buf_index == IO_BUF_SIZE) {
qemu_fflush(f);
}
}
f->buf_index += l;
if (f->buf_index == IO_BUF_SIZE) {
qemu_fflush(f);
}
if (qemu_file_get_error(f)) {
break;
@ -687,12 +685,10 @@ void qemu_put_byte(QEMUFile *f, int v)
f->bytes_xfer++;
if (f->ops->writev_buffer) {
add_to_iovec(f, f->buf + f->buf_index, 1);
f->buf_index++;
} else {
f->buf_index++;
if (f->buf_index == IO_BUF_SIZE) {
qemu_fflush(f);
}
}
f->buf_index++;
if (f->buf_index == IO_BUF_SIZE) {
qemu_fflush(f);
}
}