NotificationsYou must be signed in to change notification settings
Fork0
Star2

Commitaa5c3a2

committed

Merge tag 'perf-urgent-2020-10-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf fix from Ingo Molnar: "Fix an error handling bug that can cause a lockup if a CPU is offline (doh ...)"* tag 'perf-urgent-2020-10-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf: Fix task_function_call() error handling

2 parentsda69003 +6d6b8b9 commitaa5c3a2Copy full SHA for aa5c3a2

File tree

1 file changed

-2

lines changed

kernel/events
- core.c

1 file changed

-2

lines changed

`‎kernel/events/core.c‎`

Lines changed: 3 additions & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -99,7 +99,7 @@ static void remote_function(void *data)`
`99`	`99`	`* retry due to any failures in smp_call_function_single(), such as if the`
`100`	`100`	`* task_cpu() goes offline concurrently.`
`101`	`101`	`*`
`102`		`- * returns @func return value or -ESRCH when the process isn't running`
	`102`	`+ * returns @func return value or -ESRCHor -ENXIOwhen the process isn't running`
`103`	`103`	`*/`
`104`	`104`	`staticint`
`105`	`105`	`task_function_call(structtask_structp,remote_function_ffunc,voidinfo)`
`@@ -115,7 +115,8 @@ task_function_call(struct task_struct p, remote_function_f func, void info)`
`115`	`115`	`for (;;) {`
`116`	`116`	`ret=smp_call_function_single(task_cpu(p),remote_function,`
`117`	`117`	`&data,1);`
`118`		`-ret= !ret ?data.ret :-EAGAIN;`
	`118`	`+if (!ret)`
	`119`	`+ret=data.ret;`
`119`	`120`
`120`	`121`	`if (ret!=-EAGAIN)`
`121`	`122`	`break;`

0 commit comments

Comments

(0)

Movatterモバイル変換

Navigation Menu

Search code, repositories, users, issues, pull requests...

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Uh oh!

Commitaa5c3a2

File tree

1 file changed

1 file changed

`‎kernel/events/core.c‎`

0 commit comments