| Message ID | 20230302204612.782387-6-mcgrof@kernel.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | sysctl: slowly deprecate register_sysctl_table() | expand |
On Thu, Mar 02, 2023 at 12:46:10PM -0800, Luis Chamberlain wrote: > Although this driver is a good use case for having a directory > that is not other directories and then subdirectories with more > entries, the usage of register_sysctl_table() can recurse and > increases complexity so to avoid that just split out the > registration to each directory with its own entries. > > register_sysctl_table() is a deprecated compatibility wrapper. > register_sysctl() can do the directory creation for you so just use > that. > > Signed-off-by: Luis Chamberlain <mcgrof@kernel.org> Reviewed-by: Steve Wahl <steve.wahl@hpe.com> > --- > drivers/misc/sgi-xp/xpc_main.c | 24 ++++++++++-------------- > 1 file changed, 10 insertions(+), 14 deletions(-) > > diff --git a/drivers/misc/sgi-xp/xpc_main.c b/drivers/misc/sgi-xp/xpc_main.c > index b2c3c22fc13c..6da509d692bb 100644 > --- a/drivers/misc/sgi-xp/xpc_main.c > +++ b/drivers/misc/sgi-xp/xpc_main.c > @@ -93,7 +93,7 @@ int xpc_disengage_timelimit = XPC_DISENGAGE_DEFAULT_TIMELIMIT; > static int xpc_disengage_min_timelimit; /* = 0 */ > static int xpc_disengage_max_timelimit = 120; > > -static struct ctl_table xpc_sys_xpc_hb_dir[] = { > +static struct ctl_table xpc_sys_xpc_hb[] = { > { > .procname = "hb_interval", > .data = &xpc_hb_interval, > @@ -112,11 +112,7 @@ static struct ctl_table xpc_sys_xpc_hb_dir[] = { > .extra2 = &xpc_hb_check_max_interval}, > {} > }; > -static struct ctl_table xpc_sys_xpc_dir[] = { > - { > - .procname = "hb", > - .mode = 0555, > - .child = xpc_sys_xpc_hb_dir}, > +static struct ctl_table xpc_sys_xpc[] = { > { > .procname = "disengage_timelimit", > .data = &xpc_disengage_timelimit, > @@ -127,14 +123,9 @@ static struct ctl_table xpc_sys_xpc_dir[] = { > .extra2 = &xpc_disengage_max_timelimit}, > {} > }; > -static struct ctl_table xpc_sys_dir[] = { > - { > - .procname = "xpc", > - .mode = 0555, > - .child = xpc_sys_xpc_dir}, > - {} > -}; > + > static struct ctl_table_header *xpc_sysctl; > +static struct ctl_table_header *xpc_sysctl_hb; > > /* non-zero if any remote partition disengage was timed out */ > int xpc_disengage_timedout; > @@ -1041,6 +1032,8 @@ xpc_do_exit(enum xp_retval reason) > > if (xpc_sysctl) > unregister_sysctl_table(xpc_sysctl); > + if (xpc_sysctl_hb) > + unregister_sysctl_table(xpc_sysctl_hb); > > xpc_teardown_partitions(); > > @@ -1243,7 +1236,8 @@ xpc_init(void) > goto out_1; > } > > - xpc_sysctl = register_sysctl_table(xpc_sys_dir); > + xpc_sysctl = register_sysctl("xpc", xpc_sys_xpc); > + xpc_sysctl_hb = register_sysctl("xpc/hb", xpc_sys_xpc_hb); > > /* > * Fill the partition reserved page with the information needed by > @@ -1308,6 +1302,8 @@ xpc_init(void) > (void)unregister_die_notifier(&xpc_die_notifier); > (void)unregister_reboot_notifier(&xpc_reboot_notifier); > out_2: > + if (xpc_sysctl_hb) > + unregister_sysctl_table(xpc_sysctl_hb); > if (xpc_sysctl) > unregister_sysctl_table(xpc_sysctl); > > -- > 2.39.1 >
diff --git a/drivers/misc/sgi-xp/xpc_main.c b/drivers/misc/sgi-xp/xpc_main.c index b2c3c22fc13c..6da509d692bb 100644 --- a/drivers/misc/sgi-xp/xpc_main.c +++ b/drivers/misc/sgi-xp/xpc_main.c @@ -93,7 +93,7 @@ int xpc_disengage_timelimit = XPC_DISENGAGE_DEFAULT_TIMELIMIT; static int xpc_disengage_min_timelimit; /* = 0 */ static int xpc_disengage_max_timelimit = 120; -static struct ctl_table xpc_sys_xpc_hb_dir[] = { +static struct ctl_table xpc_sys_xpc_hb[] = { { .procname = "hb_interval", .data = &xpc_hb_interval, @@ -112,11 +112,7 @@ static struct ctl_table xpc_sys_xpc_hb_dir[] = { .extra2 = &xpc_hb_check_max_interval}, {} }; -static struct ctl_table xpc_sys_xpc_dir[] = { - { - .procname = "hb", - .mode = 0555, - .child = xpc_sys_xpc_hb_dir}, +static struct ctl_table xpc_sys_xpc[] = { { .procname = "disengage_timelimit", .data = &xpc_disengage_timelimit, @@ -127,14 +123,9 @@ static struct ctl_table xpc_sys_xpc_dir[] = { .extra2 = &xpc_disengage_max_timelimit}, {} }; -static struct ctl_table xpc_sys_dir[] = { - { - .procname = "xpc", - .mode = 0555, - .child = xpc_sys_xpc_dir}, - {} -}; + static struct ctl_table_header *xpc_sysctl; +static struct ctl_table_header *xpc_sysctl_hb; /* non-zero if any remote partition disengage was timed out */ int xpc_disengage_timedout; @@ -1041,6 +1032,8 @@ xpc_do_exit(enum xp_retval reason) if (xpc_sysctl) unregister_sysctl_table(xpc_sysctl); + if (xpc_sysctl_hb) + unregister_sysctl_table(xpc_sysctl_hb); xpc_teardown_partitions(); @@ -1243,7 +1236,8 @@ xpc_init(void) goto out_1; } - xpc_sysctl = register_sysctl_table(xpc_sys_dir); + xpc_sysctl = register_sysctl("xpc", xpc_sys_xpc); + xpc_sysctl_hb = register_sysctl("xpc/hb", xpc_sys_xpc_hb); /* * Fill the partition reserved page with the information needed by @@ -1308,6 +1302,8 @@ xpc_init(void) (void)unregister_die_notifier(&xpc_die_notifier); (void)unregister_reboot_notifier(&xpc_reboot_notifier); out_2: + if (xpc_sysctl_hb) + unregister_sysctl_table(xpc_sysctl_hb); if (xpc_sysctl) unregister_sysctl_table(xpc_sysctl);
Although this driver is a good use case for having a directory that is not other directories and then subdirectories with more entries, the usage of register_sysctl_table() can recurse and increases complexity so to avoid that just split out the registration to each directory with its own entries. register_sysctl_table() is a deprecated compatibility wrapper. register_sysctl() can do the directory creation for you so just use that. Signed-off-by: Luis Chamberlain <mcgrof@kernel.org> --- drivers/misc/sgi-xp/xpc_main.c | 24 ++++++++++-------------- 1 file changed, 10 insertions(+), 14 deletions(-)