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authorTakashi Iwai <tiwai@suse.de>2009-01-15 12:27:20 -0500
committerTakashi Iwai <tiwai@suse.de>2009-01-15 12:27:20 -0500
commitc0106d72b8d71696dbe9dc80e2c77d4ac63f7531 (patch)
treeca96d2baecb0555e36219ed6968dc8e306e530ca /include/linux/res_counter.h
parent5852973c129cf7c7e6c229abb7250673fc2a50c9 (diff)
parenteff317d0834ad1ff03f747f6bc2d76b9a9c95160 (diff)
Merge branch 'topic/asoc' into next/asoc
Diffstat (limited to 'include/linux/res_counter.h')
-rw-r--r--include/linux/res_counter.h8
1 files changed, 6 insertions, 2 deletions
diff --git a/include/linux/res_counter.h b/include/linux/res_counter.h
index 271c1c2c9f6f..dede0a2cfc45 100644
--- a/include/linux/res_counter.h
+++ b/include/linux/res_counter.h
@@ -43,6 +43,10 @@ struct res_counter {
43 * the routines below consider this to be IRQ-safe 43 * the routines below consider this to be IRQ-safe
44 */ 44 */
45 spinlock_t lock; 45 spinlock_t lock;
46 /*
47 * Parent counter, used for hierarchial resource accounting
48 */
49 struct res_counter *parent;
46}; 50};
47 51
48/** 52/**
@@ -87,7 +91,7 @@ enum {
87 * helpers for accounting 91 * helpers for accounting
88 */ 92 */
89 93
90void res_counter_init(struct res_counter *counter); 94void res_counter_init(struct res_counter *counter, struct res_counter *parent);
91 95
92/* 96/*
93 * charge - try to consume more resource. 97 * charge - try to consume more resource.
@@ -103,7 +107,7 @@ void res_counter_init(struct res_counter *counter);
103int __must_check res_counter_charge_locked(struct res_counter *counter, 107int __must_check res_counter_charge_locked(struct res_counter *counter,
104 unsigned long val); 108 unsigned long val);
105int __must_check res_counter_charge(struct res_counter *counter, 109int __must_check res_counter_charge(struct res_counter *counter,
106 unsigned long val); 110 unsigned long val, struct res_counter **limit_fail_at);
107 111
108/* 112/*
109 * uncharge - tell that some portion of the resource is released 113 * uncharge - tell that some portion of the resource is released