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| author | Ingo Molnar <mingo@elte.hu> | 2009-04-08 17:25:42 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-04-08 17:26:00 +0200 |
| commit | 5af8c4e0fac9838428bd718040b664043a05f37c (patch) | |
| tree | 75a01d98ed244db45fe3c734c4a81c1a3d92ac37 /include/linux/memory.h | |
| parent | 46e0bb9c12f4bab539736f1714cbf16600f681ec (diff) | |
| parent | 577c9c456f0e1371cbade38eaf91ae8e8a308555 (diff) | |
Merge commit 'v2.6.30-rc1' into sched/urgent
Merge reason: update to latest upstream to queue up fix
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/memory.h')
| -rw-r--r-- | include/linux/memory.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/linux/memory.h b/include/linux/memory.h index 3fdc10806d31..37fa19b34ef5 100644 --- a/include/linux/memory.h +++ b/include/linux/memory.h @@ -99,4 +99,21 @@ enum mem_add_context { BOOT, HOTPLUG }; #define hotplug_memory_notifier(fn, pri) do { } while (0) #endif +/* + * 'struct memory_accessor' is a generic interface to provide + * in-kernel access to persistent memory such as i2c or SPI EEPROMs + */ +struct memory_accessor { + ssize_t (*read)(struct memory_accessor *, char *buf, off_t offset, + size_t count); + ssize_t (*write)(struct memory_accessor *, const char *buf, + off_t offset, size_t count); +}; + +/* + * Kernel text modification mutex, used for code patching. Users of this lock + * can sleep. + */ +extern struct mutex text_mutex; + #endif /* _LINUX_MEMORY_H_ */ |