diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-18 10:50:27 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-18 10:50:27 -0700 |
| commit | 8f627a8a881481598c2591c3acc122fb9be7bac4 (patch) | |
| tree | 06497d25e30824500aeaf8c736c45b070f121234 /drivers/mtd/ubi/build.c | |
| parent | fd57ed021990157ee5b3997c3f21c734093a9e23 (diff) | |
| parent | 5d630e43284fdb0613e4e7e7dd906f27bc25b6af (diff) | |
Merge branch 'linux-next' of git://git.infradead.org/ubifs-2.6
* 'linux-next' of git://git.infradead.org/ubifs-2.6: (25 commits)
UBIFS: clean-up commentaries
UBIFS: save 128KiB or more RAM
UBIFS: allocate orphans scan buffer on demand
UBIFS: allocate lpt dump buffer on demand
UBIFS: allocate ltab checking buffer on demand
UBIFS: allocate scanning buffer on demand
UBIFS: allocate dump buffer on demand
UBIFS: do not check data crc by default
UBIFS: simplify UBIFS Kconfig menu
UBIFS: print max. index node size
UBIFS: handle allocation failures in UBIFS write path
UBIFS: use max_write_size during recovery
UBIFS: use max_write_size for write-buffers
UBIFS: introduce write-buffer size field
UBI: incorporate LEB offset information
UBIFS: incorporate maximum write size
UBI: provide LEB offset information
UBI: incorporate maximum write size
UBIFS: fix LEB number in printk
UBIFS: restrict world-writable debugfs files
...
Diffstat (limited to 'drivers/mtd/ubi/build.c')
| -rw-r--r-- | drivers/mtd/ubi/build.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c index a801ea6b8b6d..65626c1c446d 100644 --- a/drivers/mtd/ubi/build.c +++ b/drivers/mtd/ubi/build.c @@ -690,11 +690,25 @@ static int io_init(struct ubi_device *ubi) ubi_assert(ubi->hdrs_min_io_size <= ubi->min_io_size); ubi_assert(ubi->min_io_size % ubi->hdrs_min_io_size == 0); + ubi->max_write_size = ubi->mtd->writebufsize; + /* + * Maximum write size has to be greater or equivalent to min. I/O + * size, and be multiple of min. I/O size. + */ + if (ubi->max_write_size < ubi->min_io_size || + ubi->max_write_size % ubi->min_io_size || + !is_power_of_2(ubi->max_write_size)) { + ubi_err("bad write buffer size %d for %d min. I/O unit", + ubi->max_write_size, ubi->min_io_size); + return -EINVAL; + } + /* Calculate default aligned sizes of EC and VID headers */ ubi->ec_hdr_alsize = ALIGN(UBI_EC_HDR_SIZE, ubi->hdrs_min_io_size); ubi->vid_hdr_alsize = ALIGN(UBI_VID_HDR_SIZE, ubi->hdrs_min_io_size); dbg_msg("min_io_size %d", ubi->min_io_size); + dbg_msg("max_write_size %d", ubi->max_write_size); dbg_msg("hdrs_min_io_size %d", ubi->hdrs_min_io_size); dbg_msg("ec_hdr_alsize %d", ubi->ec_hdr_alsize); dbg_msg("vid_hdr_alsize %d", ubi->vid_hdr_alsize); |