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Commit c9b6cbe5 authored by J. Bruce Fields's avatar J. Bruce Fields
Browse files

knfsd: nfs4 name->id mapping not correctly parsing negative downcall 



Note that qword_get() returns length or -1, not an -ERROR.

Signed-off-by: default avatar"J. Bruce Fields" <bfields@citi.umich.edu>
Acked-by: default avatarNeil Brown <neilb@suse.de>
parent 2fdada03

fs/nfsd/nfs4idmap.c

+5 −3
Original line number Diff line number Diff line
@@ -207,6 +207,7 @@ idtoname_parse(struct cache_detail *cd, char *buf, int buflen) 
{

	struct ent ent, *res;

	char *buf1, *bp;

	int len;

	int error = -EINVAL;



	if (buf[buflen - 1] != '\n')
@@ -248,10 +249,11 @@ idtoname_parse(struct cache_detail *cd, char *buf, int buflen) 
		goto out;



	/* Name */

	error = qword_get(&buf, buf1, PAGE_SIZE);

	if (error == -EINVAL)

	error = -EINVAL;

	len = qword_get(&buf, buf1, PAGE_SIZE);

	if (len < 0)

		goto out;

	if (error == -ENOENT)

	if (len == 0)

		set_bit(CACHE_NEGATIVE, &ent.h.flags);

	else {

		if (error >= IDMAP_NAMESZ) {