u32 blk_size = osfs.os_bsize >> 10;
u64 result = osfs.os_blocks;
- while (blk_size >>= 1)
- result <<= 1;
-
+ result *= rounddown_pow_of_two(blk_size ?: 1);
return sprintf(buf, "%llu\n", result);
}
"file_secctx", /* 0x01 */
"lockaheadv2", /* 0x02 */
"dir_migrate", /* 0x04 */
- "unknown", /* 0x08 */
- "unknown", /* 0x10 */
+ "sum_statfs", /* 0x08 */
+ "overstriping", /* 0x10 */
"flr", /* 0x20 */
"wbc", /* 0x40 */
"lock_convert", /* 0x80 */
"archive_id_array", /* 0x100 */
- "unknown", /* 0x200 */
+ "increasing_xid", /* 0x200 */
"selinux_policy", /* 0x400 */
"lsom", /* 0x800 */
+ "pcc", /* 0x1000 */
+ "plain_layout", /* 0x2000 */
+ "async_discard", /* 0x4000 */
+ "client_encryption", /* 0x8000 */
NULL
};
obd->obd_ktype.sysfs_ops = &lustre_sysfs_ops;
obd->obd_ktype.release = obd_sysfs_release;
- obd->obd_kset.kobj.parent = obd->obd_type->typ_kobj;
+ obd->obd_kset.kobj.parent = &obd->obd_type->typ_kobj;
obd->obd_kset.kobj.ktype = &obd->obd_ktype;
init_completion(&obd->obd_kobj_unregister);
rc = kset_register(&obd->obd_kset);
}
EXPORT_SYMBOL(lprocfs_read_helper);
-int lprocfs_read_frac_helper(char *buffer, unsigned long count, long val,
- int mult)
-{
- long decimal_val, frac_val;
- int prtn;
-
- if (count < 10)
- return -EINVAL;
-
- decimal_val = val / mult;
- prtn = snprintf(buffer, count, "%ld", decimal_val);
- frac_val = val % mult;
-
- if (prtn < (count - 4) && frac_val > 0) {
- long temp_frac;
- int i, temp_mult = 1, frac_bits = 0;
-
- temp_frac = frac_val * 10;
- buffer[prtn++] = '.';
- while (frac_bits < 2 && (temp_frac / mult) < 1) {
- /* only reserved 2 bits fraction */
- buffer[prtn++] = '0';
- temp_frac *= 10;
- frac_bits++;
- }
- /*
- * Need to think these cases :
- * 1. #echo x.00 > /proc/xxx output result : x
- * 2. #echo x.0x > /proc/xxx output result : x.0x
- * 3. #echo x.x0 > /proc/xxx output result : x.x
- * 4. #echo x.xx > /proc/xxx output result : x.xx
- * Only reserved 2 bits fraction.
- */
- for (i = 0; i < (5 - prtn); i++)
- temp_mult *= 10;
-
- frac_bits = min((int)count - prtn, 3 - frac_bits);
- prtn += snprintf(buffer + prtn, frac_bits, "%ld",
- frac_val * temp_mult / mult);
-
- prtn--;
- while (buffer[prtn] < '1' || buffer[prtn] > '9') {
- prtn--;
- if (buffer[prtn] == '.') {
- prtn--;
- break;
- }
- }
- prtn++;
- }
- buffer[prtn++] = '\n';
- return prtn;
-}
-EXPORT_SYMBOL(lprocfs_read_frac_helper);
-
-int lprocfs_seq_read_frac_helper(struct seq_file *m, long val, int mult)
-{
- long decimal_val, frac_val;
-
- decimal_val = val / mult;
- seq_printf(m, "%ld", decimal_val);
- frac_val = val % mult;
-
- if (frac_val > 0) {
- frac_val *= 100;
- frac_val /= mult;
- }
- if (frac_val > 0) {
- /* Three cases: x0, xx, 0x */
- if ((frac_val % 10) != 0)
- seq_printf(m, ".%ld", frac_val);
- else
- seq_printf(m, ".%ld", frac_val / 10);
- }
-
- seq_printf(m, "\n");
- return 0;
-}
-EXPORT_SYMBOL(lprocfs_seq_read_frac_helper);
-
/* Obtains the conversion factor for the unit specified */
static int get_mult(char unit, __u64 *mult)
{
case 'p':
case 'P':
units <<= 10;
+ /* fallthrough */
case 't':
case 'T':
units <<= 10;
+ /* fallthrough */
case 'g':
case 'G':
units <<= 10;
+ /* fallthrough */
case 'm':
case 'M':
units <<= 10;
+ /* fallthrough */
case 'k':
case 'K':
units <<= 10;
* have a unit as the last character. The function handles overflow/underflow
* of the signed integer.
*/
-static int str_to_s64_internal(const char __user *buffer, unsigned long count,
- __s64 *val, __u64 def_mult, bool allow_units)
+int lu_str_to_s64(char *buffer, unsigned long count, __s64 *val, char defunit)
{
- char kernbuf[22];
+ __u64 mult = 1;
__u64 tmp;
unsigned int offset = 0;
int signed sign = 1;
__u64 max = LLONG_MAX;
int rc = 0;
- if (count > (sizeof(kernbuf) - 1))
- return -EINVAL;
-
- if (copy_from_user(kernbuf, buffer, count))
- return -EFAULT;
-
- kernbuf[count] = '\0';
+ if (defunit != '1') {
+ rc = get_mult(defunit, &mult);
+ if (rc)
+ return rc;
+ }
/* keep track of our sign */
- if (*kernbuf == '-') {
+ if (*buffer == '-') {
sign = -1;
offset++;
/* equivalent to max = -LLONG_MIN, avoids overflow */
max++;
}
- rc = str_to_u64_parse(kernbuf + offset, count - offset,
- &tmp, def_mult, allow_units);
+ rc = str_to_u64_parse(buffer + offset, count - offset,
+ &tmp, mult, true);
if (rc)
return rc;
return 0;
}
+EXPORT_SYMBOL(lu_str_to_s64);
+
+/* identical to s64 version, but does not handle overflow */
+static int str_to_u64_internal(const char __user *buffer, unsigned long count,
+ __u64 *val, __u64 def_mult, bool allow_units)
+{
+ char kernbuf[22];
+ unsigned int offset = 0;
+ int rc = 0;
+
+ if (count > (sizeof(kernbuf) - 1))
+ return -EINVAL;
+
+ if (copy_from_user(kernbuf, buffer, count))
+ return -EFAULT;
+
+ kernbuf[count] = '\0';
+
+ rc = str_to_u64_parse(kernbuf + offset, count - offset,
+ val, def_mult, allow_units);
+ if (rc)
+ return rc;
+ return 0;
+}
/**
* Convert a user string into a signed 64 bit number. This function produces
* an error when the value parsed from the string times multiplier underflows or
int lprocfs_str_with_units_to_s64(const char __user *buffer,
unsigned long count, __s64 *val, char defunit)
{
+ char kernbuf[22];
+
+ if (count > (sizeof(kernbuf) - 1))
+ return -EINVAL;
+
+ if (copy_from_user(kernbuf, buffer, count))
+ return -EFAULT;
+
+ kernbuf[count] = '\0';
+
+ return lu_str_to_s64(kernbuf, count, val, defunit);
+}
+EXPORT_SYMBOL(lprocfs_str_with_units_to_s64);
+
+/* identical to s64 version above, but does not handle overflow */
+int lprocfs_str_with_units_to_u64(const char __user *buffer,
+ unsigned long count, __u64 *val, char defunit)
+{
__u64 mult = 1;
int rc;
return rc;
}
- return str_to_s64_internal(buffer, count, val, mult, true);
+ return str_to_u64_internal(buffer, count, val, mult, true);
}
-EXPORT_SYMBOL(lprocfs_str_with_units_to_s64);
+EXPORT_SYMBOL(lprocfs_str_with_units_to_u64);
char *lprocfs_strnstr(const char *s1, const char *s2, size_t len)
{
if ((len == 4 && strncmp(kernbuf, "NONE", len) == 0) ||
(len == 5 && strncmp(kernbuf, "clear", len) == 0)) {
/* empty string is special case */
- down_write(&squash->rsi_sem);
+ spin_lock(&squash->rsi_lock);
if (!list_empty(&squash->rsi_nosquash_nids))
cfs_free_nidlist(&squash->rsi_nosquash_nids);
- up_write(&squash->rsi_sem);
+ spin_unlock(&squash->rsi_lock);
LCONSOLE_INFO("%s: nosquash_nids is cleared\n", name);
OBD_FREE(kernbuf, count + 1);
RETURN(count);
OBD_FREE(kernbuf, count + 1);
kernbuf = NULL;
- down_write(&squash->rsi_sem);
+ spin_lock(&squash->rsi_lock);
if (!list_empty(&squash->rsi_nosquash_nids))
cfs_free_nidlist(&squash->rsi_nosquash_nids);
list_splice(&tmp, &squash->rsi_nosquash_nids);
- up_write(&squash->rsi_sem);
+ spin_unlock(&squash->rsi_lock);
RETURN(count);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff