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f2fs: return proper error from start_gc_thread

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when there is an error from kthread_run, then return proper error
rather than returning -ENOMEM.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Amit Sahrawat <a.sahrawat@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
This commit is contained in:
Namjae Jeon 2013-05-26 11:05:32 +09:00 committed by Jaegeuk Kim
parent a06a241603
commit 7a267f8d74
1 changed files with 10 additions and 5 deletions
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15
fs/f2fs/gc.c
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@ -91,23 +91,28 @@ int start_gc_thread(struct f2fs_sb_info *sbi)
{ {
struct f2fs_gc_kthread *gc_th; struct f2fs_gc_kthread *gc_th;
dev_t dev = sbi->sb->s_bdev->bd_dev; dev_t dev = sbi->sb->s_bdev->bd_dev;
int err = 0;
if (!test_opt(sbi, BG_GC)) if (!test_opt(sbi, BG_GC))
return 0; goto out;
gc_th = kmalloc(sizeof(struct f2fs_gc_kthread), GFP_KERNEL); gc_th = kmalloc(sizeof(struct f2fs_gc_kthread), GFP_KERNEL);
if (!gc_th) if (!gc_th) {
return -ENOMEM; err = -ENOMEM;
goto out;
}
sbi->gc_thread = gc_th; sbi->gc_thread = gc_th;
init_waitqueue_head(&sbi->gc_thread->gc_wait_queue_head); init_waitqueue_head(&sbi->gc_thread->gc_wait_queue_head);
sbi->gc_thread->f2fs_gc_task = kthread_run(gc_thread_func, sbi, sbi->gc_thread->f2fs_gc_task = kthread_run(gc_thread_func, sbi,
"f2fs_gc-%u:%u", MAJOR(dev), MINOR(dev)); "f2fs_gc-%u:%u", MAJOR(dev), MINOR(dev));
if (IS_ERR(gc_th->f2fs_gc_task)) { if (IS_ERR(gc_th->f2fs_gc_task)) {
err = PTR_ERR(gc_th->f2fs_gc_task);
kfree(gc_th); kfree(gc_th);
sbi->gc_thread = NULL; sbi->gc_thread = NULL;
return -ENOMEM;
} }
return 0;
out:
return err;
} }
void stop_gc_thread(struct f2fs_sb_info *sbi) void stop_gc_thread(struct f2fs_sb_info *sbi)