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| author | Dmitry Eremin-Solenikov | 2011-06-06 16:04:14 +0200 |
|---|---|---|
| committer | Artem Bityutskiy | 2011-09-11 14:02:04 +0200 |
| commit | 1a31368bf92ef2a7da3ba379672c405bd2751df9 (patch) | |
| tree | 900ad92a1c8af1bf967ec05623438eb54af9cf80 /drivers/mtd/mtdpart.c | |
| parent | mtd: mtdchar: add missing initializer on raw write (diff) | |
| download | kernel-qcow2-linux-1a31368bf92ef2a7da3ba379672c405bd2751df9.tar.gz kernel-qcow2-linux-1a31368bf92ef2a7da3ba379672c405bd2751df9.tar.xz kernel-qcow2-linux-1a31368bf92ef2a7da3ba379672c405bd2751df9.zip | |
mtd: add a flags for partitions which should just leave smth. after them
Add support for MTDPART_OFS_RETAIN: such partitions start at the current
offset, take as much space as possible, but rain part->size bytes after
the end of the partitions for other parts. Primarily this is intended
for ts72xx arm platforms cleanup.
Artem: tweaked the patch a bit
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'drivers/mtd/mtdpart.c')
| -rw-r--r-- | drivers/mtd/mtdpart.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index 3477e16be1c8..b73720502433 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -479,6 +479,19 @@ static struct mtd_part *allocate_partition(struct mtd_info *master, (unsigned long long)cur_offset, (unsigned long long)slave->offset); } } + if (slave->offset == MTDPART_OFS_RETAIN) { + slave->offset = cur_offset; + if (master->size - slave->offset >= slave->mtd.size) { + slave->mtd.size = master->size - slave->offset + - slave->mtd.size; + } else { + printk(KERN_ERR "mtd partition \"%s\" doesn't have enough space: %#llx < %#llx, disabled\n", + part->name, master->size - slave->offset, + slave->mtd.size); + /* register to preserve ordering */ + goto out_register; + } + } if (slave->mtd.size == MTDPART_SIZ_FULL) slave->mtd.size = master->size - slave->offset; |