mtd: introduce mtd_get_unmapped_area interface
Linux-MTD Mailing List
linux-mtd at lists.infradead.org
Mon Jan 9 13:59:10 EST 2012
Gitweb: http://git.infradead.org/?p=mtd-2.6.git;a=commit;h=04c601bfa4cb29c968dcb66e44c799c9c01d8675
Commit: 04c601bfa4cb29c968dcb66e44c799c9c01d8675
Parent: 7219778ad9c18cc2c05c7fca0abe026afbc19dfb
Author: Artem Bityutskiy <artem.bityutskiy at linux.intel.com>
AuthorDate: Fri Dec 23 17:10:15 2011 +0200
Committer: David Woodhouse <David.Woodhouse at intel.com>
CommitDate: Mon Jan 9 18:25:18 2012 +0000
mtd: introduce mtd_get_unmapped_area interface
Signed-off-by: Artem Bityutskiy <artem.bityutskiy at linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse at intel.com>
---
drivers/mtd/mtdchar.c | 2 +-
drivers/mtd/mtdconcat.c | 4 ++--
drivers/mtd/mtdpart.c | 3 +--
fs/romfs/mmap-nommu.c | 2 +-
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 41d64ff..c51f04a 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 76123bd..b3895cf 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 b09624a..55a9cb5 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 eed9942..d5168e8 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 a7d22b7..f38e827 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;
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