Includes a couple of bugfixed found by sparse.
Signed-off-by: Neil Brown <[email protected]>
### Diffstat output
./drivers/md/md.c | 13 +++++----
./include/linux/raid/md_p.h | 58 ++++++++++++++++++++++----------------------
2 files changed, 36 insertions(+), 35 deletions(-)
diff .prev/drivers/md/md.c ./drivers/md/md.c
--- .prev/drivers/md/md.c 2006-10-20 11:49:17.000000000 +1000
+++ ./drivers/md/md.c 2006-10-20 12:00:57.000000000 +1000
@@ -974,12 +974,13 @@ static void super_90_sync(mddev_t *mddev
* version 1 superblock
*/
-static unsigned int calc_sb_1_csum(struct mdp_superblock_1 * sb)
+static __le32 calc_sb_1_csum(struct mdp_superblock_1 * sb)
{
- unsigned int disk_csum, csum;
+ __le32 disk_csum;
+ u32 csum;
unsigned long long newcsum;
int size = 256 + le32_to_cpu(sb->max_dev)*2;
- unsigned int *isuper = (unsigned int*)sb;
+ __le32 *isuper = (__le32*)sb;
int i;
disk_csum = sb->sb_csum;
@@ -989,7 +990,7 @@ static unsigned int calc_sb_1_csum(struc
newcsum += le32_to_cpu(*isuper++);
if (size == 2)
- newcsum += le16_to_cpu(*(unsigned short*) isuper);
+ newcsum += le16_to_cpu(*(__le16*) isuper);
csum = (newcsum & 0xffffffff) + (newcsum >> 32);
sb->sb_csum = disk_csum;
@@ -1106,7 +1107,7 @@ static int super_1_load(mdk_rdev_t *rdev
if (le32_to_cpu(sb->chunksize))
rdev->size &= ~((sector_t)le32_to_cpu(sb->chunksize)/2 - 1);
- if (le32_to_cpu(sb->size) > rdev->size*2)
+ if (le64_to_cpu(sb->size) > rdev->size*2)
return -EINVAL;
return ret;
}
@@ -1228,7 +1229,7 @@ static void super_1_sync(mddev_t *mddev,
else
sb->resync_offset = cpu_to_le64(0);
- sb->cnt_corrected_read = atomic_read(&rdev->corrected_errors);
+ sb->cnt_corrected_read = cpu_to_le32(atomic_read(&rdev->corrected_errors));
sb->raid_disks = cpu_to_le32(mddev->raid_disks);
sb->size = cpu_to_le64(mddev->size<<1);
diff .prev/include/linux/raid/md_p.h ./include/linux/raid/md_p.h
--- .prev/include/linux/raid/md_p.h 2006-10-20 11:41:01.000000000 +1000
+++ ./include/linux/raid/md_p.h 2006-10-20 12:00:57.000000000 +1000
@@ -206,52 +206,52 @@ static inline __u64 md_event(mdp_super_t
*/
struct mdp_superblock_1 {
/* constant array information - 128 bytes */
- __u32 magic; /* MD_SB_MAGIC: 0xa92b4efc - little endian */
- __u32 major_version; /* 1 */
- __u32 feature_map; /* bit 0 set if 'bitmap_offset' is meaningful */
- __u32 pad0; /* always set to 0 when writing */
+ __le32 magic; /* MD_SB_MAGIC: 0xa92b4efc - little endian */
+ __le32 major_version; /* 1 */
+ __le32 feature_map; /* bit 0 set if 'bitmap_offset' is meaningful */
+ __le32 pad0; /* always set to 0 when writing */
__u8 set_uuid[16]; /* user-space generated. */
char set_name[32]; /* set and interpreted by user-space */
- __u64 ctime; /* lo 40 bits are seconds, top 24 are microseconds or 0*/
- __u32 level; /* -4 (multipath), -1 (linear), 0,1,4,5 */
- __u32 layout; /* only for raid5 and raid10 currently */
- __u64 size; /* used size of component devices, in 512byte sectors */
-
- __u32 chunksize; /* in 512byte sectors */
- __u32 raid_disks;
- __u32 bitmap_offset; /* sectors after start of superblock that bitmap starts
+ __le64 ctime; /* lo 40 bits are seconds, top 24 are microseconds or 0*/
+ __le32 level; /* -4 (multipath), -1 (linear), 0,1,4,5 */
+ __le32 layout; /* only for raid5 and raid10 currently */
+ __le64 size; /* used size of component devices, in 512byte sectors */
+
+ __le32 chunksize; /* in 512byte sectors */
+ __le32 raid_disks;
+ __le32 bitmap_offset; /* sectors after start of superblock that bitmap starts
* NOTE: signed, so bitmap can be before superblock
* only meaningful of feature_map[0] is set.
*/
/* These are only valid with feature bit '4' */
- __u32 new_level; /* new level we are reshaping to */
- __u64 reshape_position; /* next address in array-space for reshape */
- __u32 delta_disks; /* change in number of raid_disks */
- __u32 new_layout; /* new layout */
- __u32 new_chunk; /* new chunk size (bytes) */
+ __le32 new_level; /* new level we are reshaping to */
+ __le64 reshape_position; /* next address in array-space for reshape */
+ __le32 delta_disks; /* change in number of raid_disks */
+ __le32 new_layout; /* new layout */
+ __le32 new_chunk; /* new chunk size (bytes) */
__u8 pad1[128-124]; /* set to 0 when written */
/* constant this-device information - 64 bytes */
- __u64 data_offset; /* sector start of data, often 0 */
- __u64 data_size; /* sectors in this device that can be used for data */
- __u64 super_offset; /* sector start of this superblock */
- __u64 recovery_offset;/* sectors before this offset (from data_offset) have been recovered */
- __u32 dev_number; /* permanent identifier of this device - not role in raid */
- __u32 cnt_corrected_read; /* number of read errors that were corrected by re-writing */
+ __le64 data_offset; /* sector start of data, often 0 */
+ __le64 data_size; /* sectors in this device that can be used for data */
+ __le64 super_offset; /* sector start of this superblock */
+ __le64 recovery_offset;/* sectors before this offset (from data_offset) have been recovered */
+ __le32 dev_number; /* permanent identifier of this device - not role in raid */
+ __le32 cnt_corrected_read; /* number of read errors that were corrected by re-writing */
__u8 device_uuid[16]; /* user-space setable, ignored by kernel */
__u8 devflags; /* per-device flags. Only one defined...*/
#define WriteMostly1 1 /* mask for writemostly flag in above */
__u8 pad2[64-57]; /* set to 0 when writing */
/* array state information - 64 bytes */
- __u64 utime; /* 40 bits second, 24 btes microseconds */
- __u64 events; /* incremented when superblock updated */
- __u64 resync_offset; /* data before this offset (from data_offset) known to be in sync */
- __u32 sb_csum; /* checksum upto devs[max_dev] */
- __u32 max_dev; /* size of devs[] array to consider */
+ __le64 utime; /* 40 bits second, 24 btes microseconds */
+ __le64 events; /* incremented when superblock updated */
+ __le64 resync_offset; /* data before this offset (from data_offset) known to be in sync */
+ __le32 sb_csum; /* checksum upto devs[max_dev] */
+ __le32 max_dev; /* size of devs[] array to consider */
__u8 pad3[64-32]; /* set to 0 when writing */
/* device state information. Indexed by dev_number.
@@ -260,7 +260,7 @@ struct mdp_superblock_1 {
* into the 'roles' value. If a device is spare or faulty, then it doesn't
* have a meaningful role.
*/
- __u16 dev_roles[0]; /* role in array, or 0xffff for a spare, or 0xfffe for faulty */
+ __le16 dev_roles[0]; /* role in array, or 0xffff for a spare, or 0xfffe for faulty */
};
/* feature_map bits */
-
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