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| author |   James Morris <jmorris@namei.org> | 2009-05-08 17:56:47 +1000 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2009-05-08 17:56:47 +1000 |
| commit | d254117099d711f215e62427f55dfb8ebd5ad011 (patch) | |
| tree | 0848ff8dd74314fec14a86497f8d288c86ba7c65 /drivers/mtd/devices/mtdram.c | |
| parent | integrity: remove __setup auditing msgs (diff) | |
| parent | NOMMU: Don't check vm_region::vm_start is page aligned in add_nommu_region() (diff) | |
| download | linux-dev-d254117099d711f215e62427f55dfb8ebd5ad011.tar.xz linux-dev-d254117099d711f215e62427f55dfb8ebd5ad011.zip | |
Merge branch 'master' into next
Diffstat (limited to 'drivers/mtd/devices/mtdram.c')
| -rw-r--r-- | drivers/mtd/devices/mtdram.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/mtd/devices/mtdram.c b/drivers/mtd/devices/mtdram.c index 3aaca88847d3..fce5ff7589aa 100644 --- a/drivers/mtd/devices/mtdram.c +++ b/drivers/mtd/devices/mtdram.c @@ -65,6 +65,19 @@ static void ram_unpoint(struct mtd_info *mtd, loff_t from, size_t len) { } +/* + * Allow NOMMU mmap() to directly map the device (if not NULL) + * - return the address to which the offset maps + * - return -ENOSYS to indicate refusal to do the mapping + */ +static unsigned long ram_get_unmapped_area(struct mtd_info *mtd, + unsigned long len, + unsigned long offset, + unsigned long flags) +{ + return (unsigned long) mtd->priv + offset; +} + static int ram_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf) { @@ -116,6 +129,7 @@ int mtdram_init_device(struct mtd_info *mtd, void *mapped_address, mtd->erase = ram_erase; mtd->point = ram_point; mtd->unpoint = ram_unpoint; + mtd->get_unmapped_area = ram_get_unmapped_area; mtd->read = ram_read; mtd->write = ram_write; |