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https://github.com/edk2-porting/linux-next.git
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1493bf217f
Make the following changes to partition check code. * Add ->bdev to struct parsed_partitions. * Introduce read_part_sector() which is a simple wrapper around read_dev_sector() which takes struct parsed_partitions *state instead of @bdev. * For functions which used to take @state and @bdev, drop @bdev. For functions which used to take @bdev, replace it with @state. * While updating, drop superflous checks on NULL state/bdev in ldm.c. This cleans up the API a bit and enables better handling of IO errors during partition check as the generic partition check code now has much better visibility into what went wrong in the low level code paths. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Ben Hutchings <ben@decadent.org.uk> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
58 lines
1.0 KiB
C
58 lines
1.0 KiB
C
/*
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* fs/partitions/karma.c
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* Rio Karma partition info.
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*
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* Copyright (C) 2006 Bob Copeland (me@bobcopeland.com)
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* based on osf.c
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*/
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#include "check.h"
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#include "karma.h"
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int karma_partition(struct parsed_partitions *state)
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{
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int i;
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int slot = 1;
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Sector sect;
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unsigned char *data;
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struct disklabel {
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u8 d_reserved[270];
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struct d_partition {
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__le32 p_res;
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u8 p_fstype;
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u8 p_res2[3];
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__le32 p_offset;
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__le32 p_size;
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} d_partitions[2];
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u8 d_blank[208];
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__le16 d_magic;
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} __attribute__((packed)) *label;
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struct d_partition *p;
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data = read_part_sector(state, 0, §);
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if (!data)
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return -1;
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label = (struct disklabel *)data;
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if (le16_to_cpu(label->d_magic) != KARMA_LABEL_MAGIC) {
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put_dev_sector(sect);
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return 0;
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}
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p = label->d_partitions;
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for (i = 0 ; i < 2; i++, p++) {
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if (slot == state->limit)
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break;
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if (p->p_fstype == 0x4d && le32_to_cpu(p->p_size)) {
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put_partition(state, slot, le32_to_cpu(p->p_offset),
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le32_to_cpu(p->p_size));
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}
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slot++;
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}
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printk("\n");
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put_dev_sector(sect);
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return 1;
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}
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