ANDROID: GKI: export some I/O tracepoints

Export some  tracepoints for vendor modules to track file
write processes related to user scenarios, and improve system
performance by increasing the I/O priority of critical file pages.

Bug: 351275734
Change-Id: Ie25420d2c655b859be4c24a532012290a3aed80d
Signed-off-by: jiangxinpei <huangdezhi@hihonor.com>
(cherry picked from commit d893627ae9601d16540a3b3123d4ca629077422c)

drivers/scsi/scsi_lib.c

@@ -53,6 +53,9 @@
 #define  SCSI_INLINE_SG_CNT  2
 #endif
 
+EXPORT_TRACEPOINT_SYMBOL_GPL(scsi_dispatch_cmd_start);
+EXPORT_TRACEPOINT_SYMBOL_GPL(scsi_dispatch_cmd_done);
+
 static struct kmem_cache *scsi_sense_cache;
 static DEFINE_MUTEX(scsi_sense_cache_mutex);
 

fs/f2fs/data.c

@@ -30,6 +30,9 @@
 
 #define NUM_PREALLOC_POST_READ_CTXS	128
 
+EXPORT_TRACEPOINT_SYMBOL_GPL(f2fs_write_begin);
+EXPORT_TRACEPOINT_SYMBOL_GPL(f2fs_submit_page_write);
+
 static struct kmem_cache *bio_post_read_ctx_cache;
 static struct kmem_cache *bio_entry_slab;
 static mempool_t *bio_post_read_ctx_pool;