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| author | Artem Bityutskiy <artem.bityutskiy@linux.intel.com> | 2011-12-23 17:10:15 +0200 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2012-01-09 18:25:18 +0000 |
| commit | 04c601bfa4cb29c968dcb66e44c799c9c01d8675 (patch) | |
| tree | 27fd5aaf5b6174a7f118f88ddbdb4eee3581ef56 | |
| parent | 7219778ad9c18cc2c05c7fca0abe026afbc19dfb (diff) | |
| download | lwn-04c601bfa4cb29c968dcb66e44c799c9c01d8675.tar.gz lwn-04c601bfa4cb29c968dcb66e44c799c9c01d8675.zip | |
mtd: introduce mtd_get_unmapped_area interface
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
| -rw-r--r-- | drivers/mtd/mtdchar.c | 2 | ||||
| -rw-r--r-- | drivers/mtd/mtdconcat.c | 4 | ||||
| -rw-r--r-- | drivers/mtd/mtdpart.c | 3 | ||||
| -rw-r--r-- | fs/romfs/mmap-nommu.c | 2 | ||||
| -rw-r--r-- | include/linux/mtd/mtd.h | 18 |
5 files changed, 18 insertions, 11 deletions
diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index 41d64ff4c252..c51f04a00afb 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -1135,7 +1135,7 @@ static unsigned long mtdchar_get_unmapped_area(struct file *file, if (offset > mtd->size - len) return (unsigned long) -EINVAL; - return mtd->get_unmapped_area(mtd, len, offset, flags); + return mtd_get_unmapped_area(mtd, len, offset, flags); } /* can't map directly */ diff --git a/drivers/mtd/mtdconcat.c b/drivers/mtd/mtdconcat.c index 76123bd49314..b3895cf20bb2 100644 --- a/drivers/mtd/mtdconcat.c +++ b/drivers/mtd/mtdconcat.c @@ -726,8 +726,8 @@ static unsigned long concat_get_unmapped_area(struct mtd_info *mtd, return (unsigned long) -EINVAL; if (subdev->get_unmapped_area) - return subdev->get_unmapped_area(subdev, len, offset, - flags); + return mtd_get_unmapped_area(subdev, len, offset, + flags); break; } diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index b09624a5497c..55a9cb544fc1 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -108,8 +108,7 @@ static unsigned long part_get_unmapped_area(struct mtd_info *mtd, struct mtd_part *part = PART(mtd); offset += part->offset; - return part->master->get_unmapped_area(part->master, len, offset, - flags); + return mtd_get_unmapped_area(part->master, len, offset, flags); } static int part_read_oob(struct mtd_info *mtd, loff_t from, diff --git a/fs/romfs/mmap-nommu.c b/fs/romfs/mmap-nommu.c index eed99428f104..d5168e8e7dcb 100644 --- a/fs/romfs/mmap-nommu.c +++ b/fs/romfs/mmap-nommu.c @@ -53,7 +53,7 @@ static unsigned long romfs_get_unmapped_area(struct file *file, if (offset > mtd->size - len) return (unsigned long) -EINVAL; - return mtd->get_unmapped_area(mtd, len, offset, flags); + return mtd_get_unmapped_area(mtd, len, offset, flags); } cant_map_directly: diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index a7d22b7fcb4c..f38e8276b408 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -178,11 +178,6 @@ struct mtd_info { int (*point) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, void **virt, resource_size_t *phys); void (*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 - */ unsigned long (*get_unmapped_area) (struct mtd_info *mtd, unsigned long len, unsigned long offset, @@ -293,6 +288,19 @@ static inline void mtd_unpoint(struct mtd_info *mtd, loff_t from, size_t len) return mtd->unpoint(mtd, from, 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 inline unsigned long mtd_get_unmapped_area(struct mtd_info *mtd, + unsigned long len, + unsigned long offset, + unsigned long flags) +{ + return mtd->get_unmapped_area(mtd, len, offset, flags); +} + static inline struct mtd_info *dev_to_mtd(struct device *dev) { return dev ? dev_get_drvdata(dev) : NULL; |