We can save some time by explicitly telling the block layer that a range
is unused before overwriting it. This brought time my sample write
from 445s to 376s.
Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx>
---
drivers/usb/gadget/f_fastboot.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/usb/gadget/f_fastboot.c b/drivers/usb/gadget/f_fastboot.c
index 35c4b8cf4c46..99c6a5c0cb83 100644
--- a/drivers/usb/gadget/f_fastboot.c
+++ b/drivers/usb/gadget/f_fastboot.c
@@ -941,6 +941,8 @@ static int fastboot_handle_sparse(struct f_fastboot *f_fb,
goto out;
}
+ discard_range(fd, retlen, pos);
+
if (fentry->flags & FILE_LIST_FLAG_UBI) {
if (!IS_ENABLED(CONFIG_UBIFORMAT)) {
ret = -ENOSYS;
--
2.25.0
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