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| author | Ulrich Ölmann <u.oelmann@pengutronix.de> | 2016-11-22 16:21:21 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2017-01-10 08:27:33 +0100 |
| commit | 520ac28b41c7350194451e8f6a6c7dc1bece07f8 (patch) | |
| tree | 8897aa4976069e3937ae9a872815b0c003e85c04 /drivers | |
| parent | 6dc7dae989aa9957f8c20474c66fd0d02da1bdd6 (diff) | |
| download | barebox-520ac28b41c7350194451e8f6a6c7dc1bece07f8.tar.gz barebox-520ac28b41c7350194451e8f6a6c7dc1bece07f8.tar.xz | |
ubi: Only read necessary size when reading the VID header
Based on kernel commit 8a8e8d2fdbab ("ubi: Only read necessary size when reading
the VID header") by Sascha Hauer <s.hauer@pengutronix.de>:
When reading the vid hdr from the device UBI always reads a whole
page. Instead, read only the data we actually need and speed up
attachment of UBI devices by potentially making use of reading
subpages if the NAND driver supports it.
Since the VID header may be at offset vid_hdr_shift in the page and
we can only read from the beginning of a page we have to add that
offset to the read size.
Signed-off-by: Ulrich Ölmann <u.oelmann@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mtd/ubi/io.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mtd/ubi/io.c b/drivers/mtd/ubi/io.c index 43af4a52df..6d08f92ea6 100644 --- a/drivers/mtd/ubi/io.c +++ b/drivers/mtd/ubi/io.c @@ -711,7 +711,7 @@ int ubi_io_read_vid_hdr(struct ubi_device *ubi, int pnum, p = (char *)vid_hdr - ubi->vid_hdr_shift; read_err = ubi_io_read(ubi, p, pnum, ubi->vid_hdr_aloffset, - ubi->vid_hdr_alsize); + ubi->vid_hdr_shift + UBI_VID_HDR_SIZE); if (read_err && read_err != UBI_IO_BITFLIPS && !mtd_is_eccerr(read_err)) return read_err; |