Messages in this thread Patch in this message | | | Date | Thu, 21 Feb 2008 12:35:19 -0800 | From | menage@google ... | Subject | [PATCH 1/2] ResCounter: Add res_counter_read_uint() |
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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)) --
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