[PATCH v16 16/42] dept: apply sdt_might_sleep_{start,end}() to hashed-waitqueue wait
From: Byungchul Park <byungchul@sk.com>
Date: 2025-05-19 09:18:51
Also in:
dri-devel, linux-block, linux-ext4, linux-fsdevel, linux-ide, linux-mm, lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
Make dept able to track dependencies by hashed-waitqueue waits. Signed-off-by: Byungchul Park <byungchul@sk.com> --- include/linux/wait_bit.h | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/include/linux/wait_bit.h b/include/linux/wait_bit.h
index 9e29d79fc790..179a616ad245 100644
--- a/include/linux/wait_bit.h
+++ b/include/linux/wait_bit.h@@ -6,6 +6,7 @@ * Linux wait-bit related types and methods: */ #include <linux/wait.h> +#include <linux/dept_sdt.h> struct wait_bit_key { unsigned long *flags;
@@ -257,6 +258,7 @@ extern wait_queue_head_t *__var_waitqueue(void *p); struct wait_bit_queue_entry __wbq_entry; \ long __ret = ret; /* explicit shadow */ \ \ + sdt_might_sleep_start(NULL); \ init_wait_var_entry(&__wbq_entry, var, \ exclusive ? WQ_FLAG_EXCLUSIVE : 0); \ for (;;) { \
@@ -274,6 +276,7 @@ extern wait_queue_head_t *__var_waitqueue(void *p); cmd; \ } \ finish_wait(__wq_head, &__wbq_entry.wq_entry); \ + sdt_might_sleep_end(); \ __out: __ret; \ })
--
2.17.1