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authorLinus Torvalds <torvalds@linux-foundation.org>2020-06-01 16:11:38 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-01 16:11:38 -0700
commite148a8f948afc0b1eeb5c157b23b3d0a4d4517a5 (patch)
tree8449693b9d52f915c73bb9dcd07f263eb307f375 /include
parentMerge branch 'uaccess.access_ok' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs (diff)
parentreaddir.c: get rid of the last __put_user(), drop now-useless access_ok() (diff)
downloadwireguard-linux-e148a8f948afc0b1eeb5c157b23b3d0a4d4517a5.tar.xz
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Merge branch 'uaccess.readdir' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull uaccess/readdir updates from Al Viro: "Finishing the conversion of readdir.c to unsafe_... API. This includes the uaccess_{read,write}_begin series by Christophe Leroy" * 'uaccess.readdir' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: readdir.c: get rid of the last __put_user(), drop now-useless access_ok() readdir.c: get compat_filldir() more or less in sync with filldir() switch readdir(2) to unsafe_copy_dirent_name() drm/i915/gem: Replace user_access_begin by user_write_access_begin uaccess: Selectively open read or write user access uaccess: Add user_read_access_begin/end and user_write_access_begin/end
Diffstat (limited to 'include')
-rw-r--r--include/linux/uaccess.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h
index 67f016010aad..9861c89f93be 100644
--- a/include/linux/uaccess.h
+++ b/include/linux/uaccess.h
@@ -378,6 +378,14 @@ extern long strnlen_unsafe_user(const void __user *unsafe_addr, long count);
static inline unsigned long user_access_save(void) { return 0UL; }
static inline void user_access_restore(unsigned long flags) { }
#endif
+#ifndef user_write_access_begin
+#define user_write_access_begin user_access_begin
+#define user_write_access_end user_access_end
+#endif
+#ifndef user_read_access_begin
+#define user_read_access_begin user_access_begin
+#define user_read_access_end user_access_end
+#endif
#ifdef CONFIG_HARDENED_USERCOPY
void usercopy_warn(const char *name, const char *detail, bool to_user,