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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-10-31 19:25:15 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-10-31 19:25:15 +0300 |
| commit | 59fc453b21f767f2fb0ff4dc0a947e9b9c9e6d14 (patch) | |
| tree | 42029c432982ebabb462bd16a413a033125fd793 /ipc/util.h | |
| parent | 310c7585e8300ddc46211df0757c11e4299ec482 (diff) | |
| parent | 2ebe82288b3278b8e538ee8adce4142dbdedd8f6 (diff) | |
| download | linux-59fc453b21f767f2fb0ff4dc0a947e9b9c9e6d14.tar.xz | |
Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton:
- the rest of MM
- lib/bitmap updates
- hfs updates
- fatfs updates
- various other misc things
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (94 commits)
mm/gup.c: fix __get_user_pages_fast() comment
mm: Fix warning in insert_pfn()
memory-hotplug.rst: add some details about locking internals
powerpc/powernv: hold device_hotplug_lock when calling memtrace_offline_pages()
powerpc/powernv: hold device_hotplug_lock when calling device_online()
mm/memory_hotplug: fix online/offline_pages called w.o. mem_hotplug_lock
mm/memory_hotplug: make add_memory() take the device_hotplug_lock
mm/memory_hotplug: make remove_memory() take the device_hotplug_lock
mm/memblock.c: warn if zero alignment was requested
memblock: stop using implicit alignment to SMP_CACHE_BYTES
docs/boot-time-mm: remove bootmem documentation
mm: remove include/linux/bootmem.h
memblock: replace BOOTMEM_ALLOC_* with MEMBLOCK variants
mm: remove nobootmem
memblock: rename __free_pages_bootmem to memblock_free_pages
memblock: rename free_all_bootmem to memblock_free_all
memblock: replace free_bootmem_late with memblock_free_late
memblock: replace free_bootmem{_node} with memblock_free
mm: nobootmem: remove bootmem allocation APIs
memblock: replace alloc_bootmem with memblock_alloc
...
Diffstat (limited to 'ipc/util.h')
| -rw-r--r-- | ipc/util.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/ipc/util.h b/ipc/util.h index 1ee81bce25e9..d768fdbed515 100644 --- a/ipc/util.h +++ b/ipc/util.h @@ -217,6 +217,15 @@ int ipcget(struct ipc_namespace *ns, struct ipc_ids *ids, void free_ipcs(struct ipc_namespace *ns, struct ipc_ids *ids, void (*free)(struct ipc_namespace *, struct kern_ipc_perm *)); +static inline int sem_check_semmni(struct ipc_namespace *ns) { + /* + * Check semmni range [0, IPCMNI] + * semmni is the last element of sem_ctls[4] array + */ + return ((ns->sem_ctls[3] < 0) || (ns->sem_ctls[3] > IPCMNI)) + ? -ERANGE : 0; +} + #ifdef CONFIG_COMPAT #include <linux/compat.h> struct compat_ipc_perm { |