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author | Ingo Molnar <mingo@elte.hu> | 2011-05-07 10:51:38 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2011-05-07 10:51:48 +0200 |
commit | 4cb1f43ce8c72ee453c00fcb9f6ee9c4ebd03f98 (patch) | |
tree | 15e64f192b54ea01fd640d69eed0cabed2baaaa9 /kernel/res_counter.c | |
parent | 9de4966a4d218f29c68e96e8e7b4d2840dedec79 (diff) | |
parent | 0ee5623f9a6e52df90a78bd21179f8ab370e102e (diff) |
Merge commit 'v2.6.39-rc6' into x86/cleanups
Merge reason: move to a (much) newer upstream base.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/res_counter.c')
-rw-r--r-- | kernel/res_counter.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/kernel/res_counter.c b/kernel/res_counter.c index c7eaa37a768b..34683efa2cce 100644 --- a/kernel/res_counter.c +++ b/kernel/res_counter.c @@ -126,10 +126,24 @@ ssize_t res_counter_read(struct res_counter *counter, int member, pos, buf, s - buf); } +#if BITS_PER_LONG == 32 +u64 res_counter_read_u64(struct res_counter *counter, int member) +{ + unsigned long flags; + u64 ret; + + spin_lock_irqsave(&counter->lock, flags); + ret = *res_counter_member(counter, member); + spin_unlock_irqrestore(&counter->lock, flags); + + return ret; +} +#else u64 res_counter_read_u64(struct res_counter *counter, int member) { return *res_counter_member(counter, member); } +#endif int res_counter_memparse_write_strategy(const char *buf, unsigned long long *res) |