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Revert "block: Remove extra discard_alignment from hd_struct."

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It was not a good idea to start dereferencing disk->queue from
the fs sysfs strategy for displaying discard alignment. We ran
into first a NULL pointer deref, and after fixing that we sometimes
see unvalid disk->queue pointer values.

Since discard is the only one of the bunch actually looking into
the queue, just revert the change.

This reverts commit 23ceb5b771.

Conflicts:
	fs/partitions/check.c
This commit is contained in:
Jens Axboe 2011-05-30 07:42:51 +02:00
commit a1706ac4c0
2 changed files with 4 additions and 7 deletions
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1
include/linux/genhd.h
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@ -100,6 +100,7 @@ struct hd_struct {
sector_t start_sect;
sector_t nr_sects;
sector_t alignment_offset;
unsigned int discard_alignment;
struct device __dev;
struct kobject *holder_dir;
int policy, partno;