[PATCH v8 11/25] dept: Apply sdt_might_sleep_{start,end}() to hashed-waitqueue wait
From: Byungchul Park <hidden>
Date: 2023-01-27 01:50:01
Also in:
dri-devel, linux-block, linux-ext4, linux-fsdevel, linux-mm, lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
Makes Dept able to track dependencies by hashed-waitqueue waits. Signed-off-by: Byungchul Park <redacted> --- 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 7725b75..fe89282 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 { void *flags;
@@ -246,6 +247,7 @@ struct wait_bit_queue_entry { 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 (;;) { \
@@ -263,6 +265,7 @@ struct wait_bit_queue_entry { cmd; \ } \ finish_wait(__wq_head, &__wbq_entry.wq_entry); \ + sdt_might_sleep_end(); \ __out: __ret; \ })
--
1.9.1