diff options
| author | Eric Dumazet <edumazet@google.com> | 2021-03-25 11:08:13 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-03-25 17:39:33 -0700 |
| commit | cb9444130662c6c13022579c861098f212db2562 (patch) | |
| tree | 8284fffb678daa077898d0d65f36e6e9488585e1 /fs | |
| parent | d54e1348d8ef19d5b2cd555e22ffc356f755d66e (diff) | |
sysctl: add proc_dou8vec_minmax()
Networking has many sysctls that could fit in one u8.
This patch adds proc_dou8vec_minmax() for this purpose.
Note that the .extra1 and .extra2 fields are pointing
to integers, because it makes conversions easier.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/proc/proc_sysctl.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c index 984e42f8cb11..7256b8962e3c 100644 --- a/fs/proc/proc_sysctl.c +++ b/fs/proc/proc_sysctl.c @@ -1108,6 +1108,11 @@ static int sysctl_check_table_array(const char *path, struct ctl_table *table) err |= sysctl_err(path, table, "array not allowed"); } + if (table->proc_handler == proc_dou8vec_minmax) { + if (table->maxlen != sizeof(u8)) + err |= sysctl_err(path, table, "array not allowed"); + } + return err; } @@ -1123,6 +1128,7 @@ static int sysctl_check_table(const char *path, struct ctl_table *table) (table->proc_handler == proc_douintvec) || (table->proc_handler == proc_douintvec_minmax) || (table->proc_handler == proc_dointvec_minmax) || + (table->proc_handler == proc_dou8vec_minmax) || (table->proc_handler == proc_dointvec_jiffies) || (table->proc_handler == proc_dointvec_userhz_jiffies) || (table->proc_handler == proc_dointvec_ms_jiffies) || |