1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _BLK_ERROR_INJECTION_H 3 #define _BLK_ERROR_INJECTION_H 1 4 5 #include <linux/jump_label.h> 6 7 DECLARE_STATIC_KEY_FALSE(blk_error_injection_enabled); 8 9 void blk_error_injection_init(struct gendisk *disk); 10 void blk_error_injection_exit(struct gendisk *disk); 11 bool __blk_error_inject(struct bio *bio); 12 static inline bool blk_error_inject(struct bio *bio) 13 { 14 if (IS_ENABLED(CONFIG_BLK_ERROR_INJECTION) && 15 static_branch_unlikely(&blk_error_injection_enabled) && 16 test_bit(GD_ERROR_INJECT, &bio->bi_bdev->bd_disk->state)) 17 return __blk_error_inject(bio); 18 return false; 19 } 20 21 #endif /* _BLK_ERROR_INJECTION_H */ 22