lkml.org 
[lkml]   [2008]   [Feb]   [21]   [last100]   RSS Feed
Views: [more markup]   [less markup]   [headers]   [forward]  
 
Messages in this thread
Patch in this message
/
DateThu, 21 Feb 2008 12:35:19 -0800
From menage@google ...
Subject[PATCH 1/2] ResCounter: Add res_counter_read_uint()
Adds a function for returning the value of a resource counter member,
in a form suitable for use in a cgroup read_uint control file method.

Signed-off-by: Paul Menage <menage@google.com>

---
 include/linux/res_counter.h |    1 +
 kernel/res_counter.c        |    5 +++++
 2 files changed, 6 insertions(+)
Index: rescounter-2.6.25-rc2-mm1/include/linux/res_counter.h
===================================================================
--- rescounter-2.6.25-rc2-mm1.orig/include/linux/res_counter.h
+++ rescounter-2.6.25-rc2-mm1/include/linux/res_counter.h
@@ -54,6 +54,7 @@ struct res_counter {
 ssize_t res_counter_read(struct res_counter *counter, int member,
 		const char __user *buf, size_t nbytes, loff_t *pos,
 		int (*read_strategy)(unsigned long long val, char *s));
+u64 res_counter_read_uint(struct res_counter *counter, int member);
 ssize_t res_counter_write(struct res_counter *counter, int member,
 		const char __user *buf, size_t nbytes, loff_t *pos,
 		int (*write_strategy)(char *buf, unsigned long long *val));
Index: rescounter-2.6.25-rc2-mm1/kernel/res_counter.c
===================================================================
--- rescounter-2.6.25-rc2-mm1.orig/kernel/res_counter.c
+++ rescounter-2.6.25-rc2-mm1/kernel/res_counter.c
@@ -92,6 +92,11 @@ ssize_t res_counter_read(struct res_coun
 			pos, buf, s - buf);
 }
 
+u64 res_counter_read_uint(struct res_counter *counter, int member)
+{
+	return *res_counter_member(counter, member);
+}
+
 ssize_t res_counter_write(struct res_counter *counter, int member,
 		const char __user *userbuf, size_t nbytes, loff_t *pos,
 		int (*write_strategy)(char *st_buf, unsigned long long *val))
--
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2008-02-21 21:01    [W:0.192 / U:0.040 seconds]
©2003-2008 Jasper Spaans