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authorDavid S. Miller <davem@davemloft.net>2011-09-22 11:23:13 +0400
committerDavid S. Miller <davem@davemloft.net>2011-09-22 11:23:13 +0400
commit8decf868790b48a727d7e7ca164f2bcd3c1389c0 (patch)
treeb759a5f861f842af7ea76f9011b579d06e9d5508 /block/blk-cgroup.c
parent3fc72370186be2f9d4d6ef06d99e1caa5d92c564 (diff)
parentd93dc5c4478c1fd5de85a3e8aece9aad7bbae044 (diff)
downloadlinux-8decf868790b48a727d7e7ca164f2bcd3c1389c0.tar.xz
Merge branch 'master' of github.com:davem330/net
Conflicts: MAINTAINERS drivers/net/Kconfig drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c drivers/net/ethernet/broadcom/tg3.c drivers/net/wireless/iwlwifi/iwl-pci.c drivers/net/wireless/iwlwifi/iwl-trans-tx-pcie.c drivers/net/wireless/rt2x00/rt2800usb.c drivers/net/wireless/wl12xx/main.c
Diffstat (limited to 'block/blk-cgroup.c')
-rw-r--r--block/blk-cgroup.c37
1 files changed, 16 insertions, 21 deletions
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index bcaf16ee6ad1..b596e54ddd71 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -785,10 +785,10 @@ static int blkio_policy_parse_and_set(char *buf,
{
char *s[4], *p, *major_s = NULL, *minor_s = NULL;
int ret;
- unsigned long major, minor, temp;
+ unsigned long major, minor;
int i = 0;
dev_t dev;
- u64 bps, iops;
+ u64 temp;
memset(s, 0, sizeof(s));
@@ -826,20 +826,23 @@ static int blkio_policy_parse_and_set(char *buf,
dev = MKDEV(major, minor);
- ret = blkio_check_dev_num(dev);
+ ret = strict_strtoull(s[1], 10, &temp);
if (ret)
- return ret;
+ return -EINVAL;
- newpn->dev = dev;
+ /* For rule removal, do not check for device presence. */
+ if (temp) {
+ ret = blkio_check_dev_num(dev);
+ if (ret)
+ return ret;
+ }
- if (s[1] == NULL)
- return -EINVAL;
+ newpn->dev = dev;
switch (plid) {
case BLKIO_POLICY_PROP:
- ret = strict_strtoul(s[1], 10, &temp);
- if (ret || (temp < BLKIO_WEIGHT_MIN && temp > 0) ||
- temp > BLKIO_WEIGHT_MAX)
+ if ((temp < BLKIO_WEIGHT_MIN && temp > 0) ||
+ temp > BLKIO_WEIGHT_MAX)
return -EINVAL;
newpn->plid = plid;
@@ -850,26 +853,18 @@ static int blkio_policy_parse_and_set(char *buf,
switch(fileid) {
case BLKIO_THROTL_read_bps_device:
case BLKIO_THROTL_write_bps_device:
- ret = strict_strtoull(s[1], 10, &bps);
- if (ret)
- return -EINVAL;
-
newpn->plid = plid;
newpn->fileid = fileid;
- newpn->val.bps = bps;
+ newpn->val.bps = temp;
break;
case BLKIO_THROTL_read_iops_device:
case BLKIO_THROTL_write_iops_device:
- ret = strict_strtoull(s[1], 10, &iops);
- if (ret)
- return -EINVAL;
-
- if (iops > THROTL_IOPS_MAX)
+ if (temp > THROTL_IOPS_MAX)
return -EINVAL;
newpn->plid = plid;
newpn->fileid = fileid;
- newpn->val.iops = (unsigned int)iops;
+ newpn->val.iops = (unsigned int)temp;
break;
}
break;