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| author |   Jason Wessel <jason.wessel@windriver.com> | 2010-01-07 11:58:36 -0600 |
|---|---|---|
| committer | Jason Wessel <jason.wessel@windriver.com> | 2010-01-07 11:58:36 -0600 |
| commit | 6144a85a0e018c19bc4b24f7eb6c1f3f7431813d (patch) | |
| tree | 4300bb5d23338884a75d449f17f2538815ac9f8c /include/linux/uaccess.h | |
| parent | Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 (diff) | |
| download | linux-dev-6144a85a0e018c19bc4b24f7eb6c1f3f7431813d.tar.xz linux-dev-6144a85a0e018c19bc4b24f7eb6c1f3f7431813d.zip | |
maccess,probe_kernel: Allow arch specific override probe_kernel_(read|write)
Some archs such as blackfin, would like to have an arch specific
probe_kernel_read() and probe_kernel_write() implementation which can
fall back to the generic implementation if no special operations are
needed.
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'include/linux/uaccess.h')
| -rw-r--r-- | include/linux/uaccess.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h index 6b58367d145e..d512d98dfb7d 100644 --- a/include/linux/uaccess.h +++ b/include/linux/uaccess.h @@ -94,6 +94,7 @@ static inline unsigned long __copy_from_user_nocache(void *to, * happens, handle that and return -EFAULT. */ extern long probe_kernel_read(void *dst, void *src, size_t size); +extern long __probe_kernel_read(void *dst, void *src, size_t size); /* * probe_kernel_write(): safely attempt to write to a location @@ -104,6 +105,7 @@ extern long probe_kernel_read(void *dst, void *src, size_t size); * Safely write to address @dst from the buffer at @src. If a kernel fault * happens, handle that and return -EFAULT. */ -extern long probe_kernel_write(void *dst, void *src, size_t size); +extern long notrace probe_kernel_write(void *dst, void *src, size_t size); +extern long notrace __probe_kernel_write(void *dst, void *src, size_t size); #endif /* __LINUX_UACCESS_H__ */ |