diff options
| author | Wei Yang <richard.weiyang@gmail.com> | 2025-03-10 10:49:32 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-03-17 22:17:00 +0300 |
| commit | 4164e1525d37d463bbd0a808709fd75abcfc89a5 (patch) | |
| tree | 439f71636e1dadf12a26bba157206e366d20fc24 /tools/include/linux/container_of.h | |
| parent | bc2f19d65373bc166c18c486e2ec2611f5a12d8f (diff) | |
| download | linux-4164e1525d37d463bbd0a808709fd75abcfc89a5.tar.xz | |
lib/rbtree: enable userland test suite for rbtree related data structure
Patch series "lib/interval_tree: add some test cases and cleanup", v2.
Since rbtree/augmented tree/interval tree share similar data structure,
besides new cases for interval tree, this patch set also does cleanup for
others.
This patch (of 7):
Currently we have some tests for rbtree related data structure, e.g.
rbtree, augmented rbtree, interval tree, in lib/ as kernel module.
To facilitate the test and debug for those fundamental data structure,
this patch enable those tests in userland.
Link: https://lkml.kernel.org/r/20250310074938.26756-1-richard.weiyang@gmail.com
Link: https://lkml.kernel.org/r/20250310074938.26756-2-richard.weiyang@gmail.com
Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michel Lespinasse <michel@lespinasse.org>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'tools/include/linux/container_of.h')
| -rw-r--r-- | tools/include/linux/container_of.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/tools/include/linux/container_of.h b/tools/include/linux/container_of.h new file mode 100644 index 000000000000..c879e14c3dd6 --- /dev/null +++ b/tools/include/linux/container_of.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _TOOLS_LINUX_CONTAINER_OF_H +#define _TOOLS_LINUX_CONTAINER_OF_H + +#ifndef container_of +/** + * container_of - cast a member of a structure out to the containing structure + * @ptr: the pointer to the member. + * @type: the type of the container struct this is embedded in. + * @member: the name of the member within the struct. + * + */ +#define container_of(ptr, type, member) ({ \ + const typeof(((type *)0)->member) * __mptr = (ptr); \ + (type *)((char *)__mptr - offsetof(type, member)); }) +#endif + +#endif /* _TOOLS_LINUX_CONTAINER_OF_H */ |