On Thu, Nov 27, 2008 at 12:32:56PM +0100, Matthias Koenig wrote:
Applied with some minor changes, thanks.
> + if (read(fd, buf, MAX_PAGESIZE) == (ssize_t)-1) {
> + perror("read");
> + goto err1;
> + }
committed:
+ datasz = read(fd, buf, MAX_PAGESIZE);
+ if (datasz == (ssize_t) -1) {
+ perror("read");
+ goto err1;
+ }
> +
> + for (page = 0x1000; page <= MAX_PAGESIZE; page <<= 1) {
> + /* skip 32k pagesize since this does not seem to
> + * be supported */
> + if (page == 0x8000)
> + continue;
+ /* the smallest swap area is PAGE_SIZE*10, it means
+ * 40k, that's less than MAX_PAGESIZE */
+ if (datasz < (page - 10))
+ break;
in theory the read() can also returns less then requested.
Karel
--
Karel Zak <kzak@xxxxxxxxxx>
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