[PATCH 10/10] partitions: Make 64bit capable
Sascha Hauer
s.hauer at pengutronix.de
Tue Jun 26 15:55:03 EDT 2012
Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
common/partitions.c | 29 -----------------------------
fs/devfs-core.c | 2 +-
include/driver.h | 2 +-
include/partition.h | 2 +-
4 files changed, 3 insertions(+), 32 deletions(-)
diff --git a/common/partitions.c b/common/partitions.c
index 74b4f12..a8c9625 100644
--- a/common/partitions.c
+++ b/common/partitions.c
@@ -43,23 +43,6 @@ struct partition_desc {
};
/**
- * Reject values which cannot be used in Barebox
- * @param val Value to be check
- * @return 0 if value can be used in Barebox, -EINVAL if not
- *
- * @note this routine can be removed when Barebox uses file offsets larger
- * than 32 bit
- */
-static int check_offset_value(uint64_t val)
-{
-#if 1 /* until Barebox can handle 64 bit offsets */
- if (val > (__INT_MAX__ / SECTOR_SIZE))
- return -EINVAL;
-#endif
- return 0;
-}
-
-/**
* Guess the size of the disk, based on the partition table entries
* @param dev device to create partitions for
* @param table partition table
@@ -76,12 +59,6 @@ static int disk_guess_size(struct device_d *dev, struct partition_entry *table)
size += get_unaligned(&table[i].partition_size);
}
}
- /* limit disk sector counts we can't handle due to 32 bit limits */
- if (check_offset_value(size) != 0) {
- dev_warn(dev, "Warning: Sector count limited due to 31 bit"
- "contraints\n");
- size = __INT_MAX__ / SECTOR_SIZE;
- }
return (int)size;
}
@@ -126,12 +103,6 @@ static void __maybe_unused try_dos_partition(struct block_device *blk,
pentry.first_sec = get_unaligned(&table[i].partition_start);
pentry.size = get_unaligned(&table[i].partition_size);
- /* do we have to ignore this partition due to limitations? */
- if (check_offset_value(pentry.first_sec) != 0)
- continue;
- if (check_offset_value(pentry.size) != 0)
- continue;
-
if (pentry.first_sec != 0) {
pd->parts[pd->used_entries].first_sec = pentry.first_sec;
pd->parts[pd->used_entries].size = pentry.size;
diff --git a/fs/devfs-core.c b/fs/devfs-core.c
index b66965e..cdb8f79 100644
--- a/fs/devfs-core.c
+++ b/fs/devfs-core.c
@@ -227,7 +227,7 @@ int devfs_remove(struct cdev *cdev)
return 0;
}
-int devfs_add_partition(const char *devname, unsigned long offset, size_t size,
+int devfs_add_partition(const char *devname, loff_t offset, loff_t size,
int flags, const char *name)
{
struct cdev *cdev, *new;
diff --git a/include/driver.h b/include/driver.h
index 0b6d1b3..eacd8e6 100644
--- a/include/driver.h
+++ b/include/driver.h
@@ -418,7 +418,7 @@ int cdev_erase(struct cdev *cdev, size_t count, loff_t offset);
#define DEVFS_PARTITION_READONLY (1 << 1)
#define DEVFS_IS_PARTITION (1 << 2)
-int devfs_add_partition(const char *devname, unsigned long offset, size_t size,
+int devfs_add_partition(const char *devname, loff_t offset, loff_t size,
int flags, const char *name);
int devfs_del_partition(const char *name);
diff --git a/include/partition.h b/include/partition.h
index 0827bb4..8ad7490 100644
--- a/include/partition.h
+++ b/include/partition.h
@@ -8,7 +8,7 @@ struct partition {
int flags;
- unsigned long offset;
+ loff_t offset;
struct device_d *physdev;
struct device_d device;
--
1.7.10
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