From d22c3e0088e85be8131f7a9283f759cdbb20726d Mon Sep 17 00:00:00 2001 From: Sven Schnelle Date: Wed, 9 Sep 2026 11:29:53 +0200 Subject: selftests/ftrace: Fix unique symbol check in kprobe_non_uniq_symbol.tc The current regex also matches symbols in modules, which makes the test fail on s390 where name_show is present only once in the kernel, but also multiple times in modules: 000001b1401cdc20 t name_show 000001b0c05e6c40 t name_show [mdev] 000001b0c0495f30 t name_show [i2c_core] Fix this by changing the regular expression to only match the function name. Link: https://lore.kernel.org/all/20260909092954.2200558-1-svens@linux.ibm.com/ Fixes: 03b80ff8023a ("selftests/ftrace: Add new test case which checks non unique symbol") Signed-off-by: Sven Schnelle Reviewed-by: Steven Rostedt Signed-off-by: Masami Hiramatsu (Google) --- fs/fuse/sysctl.c | 65 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) create mode 100644 fs/fuse/sysctl.c (limited to 'fs/fuse/sysctl.c') diff --git a/fs/fuse/sysctl.c b/fs/fuse/sysctl.c new file mode 100644 index 000000000..74eca5ce9 --- /dev/null +++ b/fs/fuse/sysctl.c @@ -0,0 +1,65 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * linux/fs/fuse/fuse_sysctl.c + * + * Sysctl interface to fuse parameters + */ +#include + +#include "sysctl.h" +#include "fuse_i.h" + +static struct ctl_table_header *fuse_table_header; + +/* Bound by fuse_init_out max_pages, which is a u16 */ +static unsigned int sysctl_fuse_max_pages_limit = 65535; + +/* + * fuse_init_out request timeouts are u16. + * This goes up to ~18 hours, which is plenty for a timeout. + */ +static unsigned int sysctl_fuse_req_timeout_limit = 65535; + +static const struct ctl_table fuse_sysctl_table[] = { + { + .procname = "max_pages_limit", + .data = &fuse_max_pages_limit, + .maxlen = sizeof(fuse_max_pages_limit), + .mode = 0644, + .proc_handler = proc_douintvec_minmax, + .extra1 = SYSCTL_ONE, + .extra2 = &sysctl_fuse_max_pages_limit, + }, + { + .procname = "default_request_timeout", + .data = &fuse_default_req_timeout, + .maxlen = sizeof(fuse_default_req_timeout), + .mode = 0644, + .proc_handler = proc_douintvec_minmax, + .extra1 = SYSCTL_ZERO, + .extra2 = &sysctl_fuse_req_timeout_limit, + }, + { + .procname = "max_request_timeout", + .data = &fuse_max_req_timeout, + .maxlen = sizeof(fuse_max_req_timeout), + .mode = 0644, + .proc_handler = proc_douintvec_minmax, + .extra1 = SYSCTL_ZERO, + .extra2 = &sysctl_fuse_req_timeout_limit, + }, +}; + +int fuse_sysctl_register(void) +{ + fuse_table_header = register_sysctl("fs/fuse", fuse_sysctl_table); + if (!fuse_table_header) + return -ENOMEM; + return 0; +} + +void fuse_sysctl_unregister(void) +{ + unregister_sysctl_table(fuse_table_header); + fuse_table_header = NULL; +} -- cgit v1.3.1