153 lines
4.3 KiB
Diff
153 lines
4.3 KiB
Diff
--- a/include/linux/compat-2.6.h
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+++ b/include/linux/compat-2.6.h
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@@ -69,6 +69,7 @@ void compat_dependency_symbol(void);
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#include <linux/compat-3.6.h>
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#include <linux/compat-3.7.h>
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#include <linux/compat-3.8.h>
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+#include <linux/compat-3.9.h>
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#endif /* __ASSEMBLY__ */
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--- /dev/null
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+++ b/include/linux/compat-3.9.h
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@@ -0,0 +1,140 @@
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+#ifndef LINUX_3_9_COMPAT_H
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+#define LINUX_3_9_COMPAT_H
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+
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+#include <linux/version.h>
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+
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+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,9,0))
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+
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+#include <linux/idr.h>
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+#include <linux/list.h>
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+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,25))
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+#include <linux/rculist.h>
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+#endif
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+#include <net/sock.h>
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+#include <linux/tty.h>
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+#include <linux/tty_flip.h>
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+
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+/* include this before changing hlist_for_each_* to use the old versions. */
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+#include <net/sch_generic.h>
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+
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+
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+/**
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+ * backport of idr idr_alloc() usage
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+ *
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+ * This backports a patch series send by Tejun Heo:
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+ * https://lkml.org/lkml/2013/2/2/159
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+ */
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+static inline void compat_idr_destroy(struct idr *idp)
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+{
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+ idr_remove_all(idp);
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+ idr_destroy(idp);
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+}
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+#define idr_destroy(idp) compat_idr_destroy(idp)
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+
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+static inline int idr_alloc(struct idr *idr, void *ptr, int start, int end,
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+ gfp_t gfp_mask)
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+{
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+ int id, ret;
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+
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+ do {
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+ if (!idr_pre_get(idr, gfp_mask))
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+ return -ENOMEM;
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+ ret = idr_get_new_above(idr, ptr, start, &id);
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+ if (!ret && id > end) {
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+ idr_remove(idr, id);
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+ ret = -ENOSPC;
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+ }
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+ } while (ret == -EAGAIN);
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+
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+ return ret ? ret : id;
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+}
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+
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+static inline void idr_preload(gfp_t gfp_mask)
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+{
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+}
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+
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+static inline void idr_preload_end(void)
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+{
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+}
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+
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+
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+/**
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+ * backport:
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+ *
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+ * commit 0bbacca7c3911451cea923b0ad6389d58e3d9ce9
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+ * Author: Sasha Levin <sasha.levin@oracle.com>
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+ * Date: Thu Feb 7 12:32:18 2013 +1100
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+ *
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+ * hlist: drop the node parameter from iterators
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+ */
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+
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+#define hlist_entry_safe(ptr, type, member) \
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+ (ptr) ? hlist_entry(ptr, type, member) : NULL
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+
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+#undef hlist_for_each_entry
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+/**
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+ * hlist_for_each_entry - iterate over list of given type
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+ * @pos: the type * to use as a loop cursor.
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+ * @head: the head for your list.
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+ * @member: the name of the hlist_node within the struct.
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+ */
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+#define hlist_for_each_entry(pos, head, member) \
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+ for (pos = hlist_entry_safe((head)->first, typeof(*(pos)), member); \
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+ pos; \
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+ pos = hlist_entry_safe((pos)->member.next, typeof(*(pos)), member))
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+
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+#undef hlist_for_each_entry_safe
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+/**
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+ * hlist_for_each_entry_safe - iterate over list of given type safe against removal of list entry
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+ * @pos: the type * to use as a loop cursor.
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+ * @n: another &struct hlist_node to use as temporary storage
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+ * @head: the head for your list.
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+ * @member: the name of the hlist_node within the struct.
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+ */
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+#define hlist_for_each_entry_safe(pos, n, head, member) \
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+ for (pos = hlist_entry_safe((head)->first, typeof(*pos), member); \
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+ pos && ({ n = pos->member.next; 1; }); \
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+ pos = hlist_entry_safe(n, typeof(*pos), member))
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+
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+#undef hlist_for_each_entry_rcu
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+/**
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+ * hlist_for_each_entry_rcu - iterate over rcu list of given type
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+ * @pos: the type * to use as a loop cursor.
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+ * @head: the head for your list.
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+ * @member: the name of the hlist_node within the struct.
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+ *
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+ * This list-traversal primitive may safely run concurrently with
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+ * the _rcu list-mutation primitives such as hlist_add_head_rcu()
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+ * as long as the traversal is guarded by rcu_read_lock().
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+ */
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+#define hlist_for_each_entry_rcu(pos, head, member) \
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+ for (pos = hlist_entry_safe (rcu_dereference_raw(hlist_first_rcu(head)),\
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+ typeof(*(pos)), member); \
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+ pos; \
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+ pos = hlist_entry_safe(rcu_dereference_raw(hlist_next_rcu( \
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+ &(pos)->member)), typeof(*(pos)), member))
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+
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+#undef sk_for_each
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+#define sk_for_each(__sk, list) \
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+ hlist_for_each_entry(__sk, list, sk_node)
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+
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+#define tty_flip_buffer_push(port) tty_flip_buffer_push((port)->tty)
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+#define tty_insert_flip_string(port, chars, size) tty_insert_flip_string((port)->tty, chars, size)
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+
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+/**
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+ * backport of:
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+ *
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+ * commit 496ad9aa8ef448058e36ca7a787c61f2e63f0f54
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+ * Author: Al Viro <viro@zeniv.linux.org.uk>
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+ * Date: Wed Jan 23 17:07:38 2013 -0500
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+ *
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+ * new helper: file_inode(file)
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+ */
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+static inline struct inode *file_inode(struct file *f)
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+{
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+ return f->f_path.dentry->d_inode;
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+}
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+
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+#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(3,9,0)) */
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+
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+#endif /* LINUX_3_9_COMPAT_H */
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