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nfsd: add get_uint for u32's 

I don't think there's a practical difference for the range of values
these interfaces should see, but it would be safer to be unambiguous.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
J. Bruce Fields 2012-06-12 16:54:16 -04:00
parent a6d88f293e
commit a007c4c3e9
2 changed files with 19 additions and 3 deletions
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6
fs/nfsd/export.c
View File

@ -398,7 +398,7 @@ fsloc_parse(char **mesg, char *buf, struct nfsd4_fs_locations *fsloc)
int migrated, i, err;
/* listsize */
err = get_int(mesg, &fsloc->locations_count);
err = get_uint(mesg, &fsloc->locations_count);
if (err)
return err;
if (fsloc->locations_count > MAX_FS_LOCATIONS)
@ -456,7 +456,7 @@ static int secinfo_parse(char **mesg, char *buf, struct svc_export *exp)
return -EINVAL;
for (f = exp->ex_flavors; f < exp->ex_flavors + listsize; f++) {
err = get_int(mesg, &f->pseudoflavor);
err = get_uint(mesg, &f->pseudoflavor);
if (err)
return err;
/*
@ -465,7 +465,7 @@ static int secinfo_parse(char **mesg, char *buf, struct svc_export *exp)
* problem at export time instead of when a client fails
* to authenticate.
*/
err = get_int(mesg, &f->flags);
err = get_uint(mesg, &f->flags);
if (err)
return err;
/* Only some flags are allowed to differ between flavors: */

16
include/linux/sunrpc/cache.h
View File

@ -230,6 +230,22 @@ static inline int get_int(char **bpp, int *anint)
return 0;
}
static inline int get_uint(char **bpp, unsigned int *anint)
{
char buf[50];
int len = qword_get(bpp, buf, sizeof(buf));
if (len < 0)
return -EINVAL;
if (len == 0)
return -ENOENT;
if (kstrtouint(buf, 0, anint))
return -EINVAL;
return 0;
}
/*
* timestamps kept in the cache are expressed in seconds
* since boot. This is the best for measuring differences in