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| author | Ahmad Fatoum <a.fatoum@pengutronix.de> | 2020-02-27 17:58:24 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2020-03-03 08:31:24 +0100 |
| commit | 0e8d4c71ab877e1498ab1f0f63be54430e24945a (patch) | |
| tree | 88ca65b030a91c76fe5d2b12581a2db26cce8c0b /drivers | |
| parent | 9552f5150bb2654a0e52aad8c12973896f24f2ee (diff) | |
| download | barebox-0e8d4c71ab877e1498ab1f0f63be54430e24945a.tar.gz barebox-0e8d4c71ab877e1498ab1f0f63be54430e24945a.tar.xz | |
usb: gadget: fastboot: call discard_range for sparse files as well
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@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/gadget/f_fastboot.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/gadget/f_fastboot.c b/drivers/usb/gadget/f_fastboot.c index 35c4b8cf4c..96aecacc27 100644 --- a/drivers/usb/gadget/f_fastboot.c +++ b/drivers/usb/gadget/f_fastboot.c @@ -957,6 +957,8 @@ static int fastboot_handle_sparse(struct f_fastboot *f_fb, if (ret) goto out; } else { + discard_range(fd, retlen, pos); + pos = lseek(fd, pos, SEEK_SET); if (pos == -1) { ret = -errno; |