[PATCH] xfs: stop using simple_strtoul()

[Jeff Liu]

Hello,

This small patch convert xfs_parseargs() and suffix_strtoul() to
use kstrtoint() instead of simple_strtoul() which is deprecated.

Thanks,
-Jeff

Signed-off-by: Jie Liu <jeff.liu at oracle.com> 

---
 fs/xfs/xfs_super.c |   29 ++++++++++++++++-------------
 1 file changed, 16 insertions(+), 13 deletions(-)

diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 26a09bd..f73235f 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -137,12 +137,14 @@ static const match_table_t tokens = {
 	{Opt_err, NULL}
 };
 
-
-STATIC unsigned long
-suffix_strtoul(char *s, char **endp, unsigned int base)
+STATIC int
+suffix_kstrtoint(
+	char		*s,
+	unsigned int	base)
 {
-	int	last, shift_left_factor = 0;
-	char	*value = s;
+	char		*value = s;
+	int		shift_left_factor = 0;
+	int		last, res;
 
 	last = strlen(value) - 1;
 	if (value[last] == 'K' || value[last] == 'k') {
@@ -158,7 +160,8 @@ suffix_strtoul(char *s, char **endp, unsigned int base)
 		value[last] = '\0';
 	}
 
-	return simple_strtoul((const char *)s, endp, base) << shift_left_factor;
+	kstrtoint(s, base, &res);
+	return res << shift_left_factor;
 }
 
 /*
@@ -174,7 +177,7 @@ xfs_parseargs(
 	char			*options)
 {
 	struct super_block	*sb = mp->m_super;
-	char			*this_char, *value, *eov;
+	char			*this_char, *value;
 	int			dsunit = 0;
 	int			dswidth = 0;
 	int			iosize = 0;
@@ -230,14 +233,14 @@ xfs_parseargs(
 					this_char);
 				return EINVAL;
 			}
-			mp->m_logbufs = simple_strtoul(value, &eov, 10);
+			kstrtoint(value, 10, &mp->m_logbufs);
 		} else if (!strcmp(this_char, MNTOPT_LOGBSIZE)) {
 			if (!value || !*value) {
 				xfs_warn(mp, "%s option requires an argument",
 					this_char);
 				return EINVAL;
 			}
-			mp->m_logbsize = suffix_strtoul(value, &eov, 10);
+			mp->m_logbsize = suffix_kstrtoint(value, 10);
 		} else if (!strcmp(this_char, MNTOPT_LOGDEV)) {
 			if (!value || !*value) {
 				xfs_warn(mp, "%s option requires an argument",
@@ -266,7 +269,7 @@ xfs_parseargs(
 					this_char);
 				return EINVAL;
 			}
-			iosize = simple_strtoul(value, &eov, 10);
+			kstrtoint(value, 10, &iosize);
 			iosizelog = ffs(iosize) - 1;
 		} else if (!strcmp(this_char, MNTOPT_ALLOCSIZE)) {
 			if (!value || !*value) {
@@ -274,7 +277,7 @@ xfs_parseargs(
 					this_char);
 				return EINVAL;
 			}
-			iosize = suffix_strtoul(value, &eov, 10);
+			iosize = suffix_kstrtoint(value, 10);
 			iosizelog = ffs(iosize) - 1;
 		} else if (!strcmp(this_char, MNTOPT_GRPID) ||
 			   !strcmp(this_char, MNTOPT_BSDGROUPS)) {
@@ -296,14 +299,14 @@ xfs_parseargs(
 					this_char);
 				return EINVAL;
 			}
-			dsunit = simple_strtoul(value, &eov, 10);
+			kstrtoint(value, 10, &dsunit);
 		} else if (!strcmp(this_char, MNTOPT_SWIDTH)) {
 			if (!value || !*value) {
 				xfs_warn(mp, "%s option requires an argument",
 					this_char);
 				return EINVAL;
 			}
-			dswidth = simple_strtoul(value, &eov, 10);
+			kstrtoint(value, 10, &dswidth);
 		} else if (!strcmp(this_char, MNTOPT_32BITINODE)) {
 			mp->m_flags |= XFS_MOUNT_SMALL_INUMS;
 		} else if (!strcmp(this_char, MNTOPT_64BITINODE)) {
-- 
1.7.9.5