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authorFrederic Leroy <fredo@starox.org>2013-06-26 18:11:25 +0200
committerTom Rini <trini@ti.com>2013-07-15 17:06:13 -0400
commit04735e9c5578dd4f3584be5454b9779e8e5c2af9 (patch)
tree5641d35f98ffda64ff900a8356639eeb88f320a5 /include/part.h
parent0eb33ad253026d5a773854dd42b2a56937678aa9 (diff)
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Fix ext2/ext4 filesystem accesses beyond 2TiB
With CONFIG_SYS_64BIT_LBA, lbaint_t gets defined as a 64-bit type, which is required to represent block numbers for storage devices that exceed 2TiB (the block size usually is 512B), e.g. recent hard drives We now use lbaint_t for partition offset to reflect the lbaint_t change, and access partitions beyond or crossing the 2.1TiB limit. This required changes to signature of ext4fs_devread(), and type of all variables relatives to block sector. ext2/ext4 fs uses logical block represented by a 32 bit value. Logical block is a multiple of device block sector. To avoid overflow problem when calling ext4fs_devread(), we need to cast the sector parameter. Signed-off-by: Frédéric Leroy <fredo@starox.org>
Diffstat (limited to 'include/part.h')
-rw-r--r--include/part.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/part.h b/include/part.h
index 35c1c5b..8e31e75 100644
--- a/include/part.h
+++ b/include/part.h
@@ -97,8 +97,8 @@ typedef struct block_dev_desc {
#define DEV_TYPE_OPDISK 0x07 /* optical disk */
typedef struct disk_partition {
- ulong start; /* # of first block in partition */
- ulong size; /* number of blocks in partition */
+ lbaint_t start; /* # of first block in partition */
+ lbaint_t size; /* number of blocks in partition */
ulong blksz; /* block size in bytes */
uchar name[32]; /* partition name */
uchar type[32]; /* string type description */