diff options
| author | Christoph Hellwig <hch@lst.de> | 2020-04-24 09:43:38 +0300 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2020-04-27 09:07:40 +0300 |
| commit | 32927393dc1ccd60fb2bdc05b9e8e88753761469 (patch) | |
| tree | c488a5564cdde7594c953219a98e22fb4865c812 /include/linux/compaction.h | |
| parent | f461d2dcd511c020a26d4d791fae595c65ed09b6 (diff) | |
| download | linux-32927393dc1ccd60fb2bdc05b9e8e88753761469.tar.xz | |
sysctl: pass kernel pointers to ->proc_handler
Instead of having all the sysctl handlers deal with user pointers, which
is rather hairy in terms of the BPF interaction, copy the input to and
from userspace in common code. This also means that the strings are
always NUL-terminated by the common code, making the API a little bit
safer.
As most handler just pass through the data to one of the common handlers
a lot of the changes are mechnical.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Andrey Ignatov <rdna@fb.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/compaction.h')
| -rw-r--r-- | include/linux/compaction.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/compaction.h b/include/linux/compaction.h index 4b898cdbdf05..a0eabfbeb0e1 100644 --- a/include/linux/compaction.h +++ b/include/linux/compaction.h @@ -86,7 +86,7 @@ static inline unsigned long compact_gap(unsigned int order) #ifdef CONFIG_COMPACTION extern int sysctl_compact_memory; extern int sysctl_compaction_handler(struct ctl_table *table, int write, - void __user *buffer, size_t *length, loff_t *ppos); + void *buffer, size_t *length, loff_t *ppos); extern int sysctl_extfrag_threshold; extern int sysctl_compact_unevictable_allowed; |