diff options
author | Amit Pundir <amit.pundir@linaro.org> | 2016-02-18 00:20:12 +0530 |
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committer | Amit Pundir <amit.pundir@linaro.org> | 2016-02-18 00:20:12 +0530 |
commit | 02bbd06e489a9f56910973535152d3ec47f3fdcc (patch) | |
tree | 93a9a4d687da4d423c92cc4a82001f3792c0b259 /include/linux/mm_types.h | |
parent | 34f6d2c9d12a97271d55c7b204443b2da9e6c29e (diff) | |
parent | 3d0f8b944b0ab4ec79d8d0b93d8038971095337a (diff) |
Merge branch 'android-4.4' of https://android.googlesource.com/kernel/commonlsk-v4.4-16.02-android
* android-4.4: (475 commits)
android: base-cfg: Add CONFIG_IP_MULTICAST
android: recommended.cfg: enable taskstats
ANDROID: android: base-cfg: disable CONFIG_SYSVIPC
android: configs: base: enable configfs gadget functions
android: add CONFIG_DEBUG_RODATA to recommended config
android: configs: remove CONFIG_BATTERY_ANDROID=y
android: configs: base: enable IPV6
android: configs: Enable SELinux and its dependencies.
android: base-cfg: disable ALARM_DEV
android: base-cfg: turn off /dev/mem and /dev/kmem
android: base-cfg: enable ARMV8_DEPRECATED and subfeatures
android: base-cfg: enforce the needed XFRM_MODE_TUNNEL (for VPN)
android: base-cfg: disable LOGGER
android: base-cfg: enable DM_VERITY (used for secureboot)
android: configs: add systrace support to recommended configs
android: configs: update 3.10 options
android: configs: Add CONFIG_NETFILTER_XT_TARGET_IDLETIMER
android: configs: add IPV6 ROUTE INFO
android: configs: add TIMER_STATS back, helps with sysrq t.
android: configs: Add HIDRAW to recommended set
...
Diffstat (limited to 'include/linux/mm_types.h')
-rw-r--r-- | include/linux/mm_types.h | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index f8d1492a114f..0a732c5e0de1 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -323,11 +323,18 @@ struct vm_area_struct { /* * For areas with an address space and backing store, * linkage into the address_space->i_mmap interval tree. + * + * For private anonymous mappings, a pointer to a null terminated string + * in the user process containing the name given to the vma, or NULL + * if unnamed. */ - struct { - struct rb_node rb; - unsigned long rb_subtree_last; - } shared; + union { + struct { + struct rb_node rb; + unsigned long rb_subtree_last; + } shared; + const char __user *anon_name; + }; /* * A file's MAP_PRIVATE vma can be in both i_mmap tree and anon_vma @@ -591,4 +598,13 @@ typedef struct { unsigned long val; } swp_entry_t; +/* Return the name for an anonymous mapping or NULL for a file-backed mapping */ +static inline const char __user *vma_get_anon_name(struct vm_area_struct *vma) +{ + if (vma->vm_file) + return NULL; + + return vma->anon_name; +} + #endif /* _LINUX_MM_TYPES_H */ |