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Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/buffer_head.h4
-rw-r--r--include/linux/cpumask.h8
-rw-r--r--include/linux/netdevice.h4
3 files changed, 9 insertions, 7 deletions
diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h
index d67ab83823ad..79591c3660cc 100644
--- a/include/linux/buffer_head.h
+++ b/include/linux/buffer_head.h
@@ -243,12 +243,10 @@ static inline int block_page_mkwrite_return(int err)
{
if (err == 0)
return VM_FAULT_LOCKED;
- if (err == -EFAULT)
+ if (err == -EFAULT || err == -EAGAIN)
return VM_FAULT_NOPAGE;
if (err == -ENOMEM)
return VM_FAULT_OOM;
- if (err == -EAGAIN)
- return VM_FAULT_RETRY;
/* -ENOSPC, -EDQUOT, -EIO ... */
return VM_FAULT_SIGBUS;
}
diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
index c717f5ea88cb..b3d2c1a89ac4 100644
--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -560,7 +560,7 @@ static inline void cpumask_copy(struct cpumask *dstp,
static inline int cpumask_parse_user(const char __user *buf, int len,
struct cpumask *dstp)
{
- return bitmap_parse_user(buf, len, cpumask_bits(dstp), nr_cpu_ids);
+ return bitmap_parse_user(buf, len, cpumask_bits(dstp), nr_cpumask_bits);
}
/**
@@ -575,7 +575,7 @@ static inline int cpumask_parselist_user(const char __user *buf, int len,
struct cpumask *dstp)
{
return bitmap_parselist_user(buf, len, cpumask_bits(dstp),
- nr_cpu_ids);
+ nr_cpumask_bits);
}
/**
@@ -590,7 +590,7 @@ static inline int cpumask_parse(const char *buf, struct cpumask *dstp)
char *nl = strchr(buf, '\n');
unsigned int len = nl ? (unsigned int)(nl - buf) : strlen(buf);
- return bitmap_parse(buf, len, cpumask_bits(dstp), nr_cpu_ids);
+ return bitmap_parse(buf, len, cpumask_bits(dstp), nr_cpumask_bits);
}
/**
@@ -602,7 +602,7 @@ static inline int cpumask_parse(const char *buf, struct cpumask *dstp)
*/
static inline int cpulist_parse(const char *buf, struct cpumask *dstp)
{
- return bitmap_parselist(buf, cpumask_bits(dstp), nr_cpu_ids);
+ return bitmap_parselist(buf, cpumask_bits(dstp), nr_cpumask_bits);
}
/**
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 58afbd1cc659..54c82b5df0ba 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1508,6 +1508,7 @@ enum netdev_priv_flags {
* @max_mtu: Interface Maximum MTU value
* @type: Interface hardware type
* @hard_header_len: Maximum hardware header length.
+ * @min_header_len: Minimum hardware header length
*
* @needed_headroom: Extra headroom the hardware may need, but not in all
* cases can this be guaranteed
@@ -1724,6 +1725,7 @@ struct net_device {
unsigned int max_mtu;
unsigned short type;
unsigned short hard_header_len;
+ unsigned short min_header_len;
unsigned short needed_headroom;
unsigned short needed_tailroom;
@@ -2688,6 +2690,8 @@ static inline bool dev_validate_header(const struct net_device *dev,
{
if (likely(len >= dev->hard_header_len))
return true;
+ if (len < dev->min_header_len)
+ return false;
if (capable(CAP_SYS_RAWIO)) {
memset(ll_header + len, 0, dev->hard_header_len - len);