This backports a patch series send by Tejun Heo: https://lkml.org/lkml/2013/2/2/159 --- include/linux/compat-2.6.h | 1 + include/linux/compat-3.9.h | 52 ++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 53 insertions(+) create mode 100644 include/linux/compat-3.9.h diff --git a/include/linux/compat-2.6.h b/include/linux/compat-2.6.h index 34c49e6..68e95d5 100644 --- a/include/linux/compat-2.6.h +++ b/include/linux/compat-2.6.h @@ -69,6 +69,7 @@ void compat_dependency_symbol(void); #include <linux/compat-3.6.h> #include <linux/compat-3.7.h> #include <linux/compat-3.8.h> +#include <linux/compat-3.9.h> #endif /* __ASSEMBLY__ */ diff --git a/include/linux/compat-3.9.h b/include/linux/compat-3.9.h new file mode 100644 index 0000000..b6cd415 --- /dev/null +++ b/include/linux/compat-3.9.h @@ -0,0 +1,52 @@ +#ifndef LINUX_3_9_COMPAT_H +#define LINUX_3_9_COMPAT_H + +#include <linux/version.h> + +#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,9,0)) + +#include <linux/idr.h> + + +/** + * backport of idr idr_alloc() usage + * + * This backports a patch series send by Tejun Heo: + * https://lkml.org/lkml/2013/2/2/159 + */ +static inline void compat_idr_destroy(struct idr *idp) +{ + idr_remove_all(idp); + idr_destroy(idp); +} +#define idr_destroy(idp) compat_idr_destroy(idp) + +static inline int idr_alloc(struct idr *idr, void *ptr, int start, int end, + gfp_t gfp_mask) +{ + int id, ret; + + do { + if (!idr_pre_get(idr, gfp_mask)) + return -ENOMEM; + ret = idr_get_new_above(idr, ptr, start, &id); + if (!ret && id > end) { + idr_remove(idr, id); + ret = -ENOSPC; + } + } while (ret == -EAGAIN); + + return ret ? ret : id; +} + +static inline void idr_preload(gfp_t gfp_mask) +{ +} + +static inline void idr_preload_end(void) +{ +} + +#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(3,9,0)) */ + +#endif /* LINUX_3_9_COMPAT_H */ -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe backports" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
