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Limit zfs_vdev_aggregation_limit to SPA_MAXBLOCKSIZE

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Prevent users from setting the zfs_vdev_aggregation_limit tuning
larger than SPA_MAXBLOCKSIZE.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #520
This commit is contained in:
Brian Behlendorf 2012-10-15 09:27:48 -07:00
parent 45ca2d91cb
commit c418410393
1 changed files with 2 additions and 2 deletions
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4
module/zfs/vdev_queue.c
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@ -201,7 +201,7 @@ vdev_queue_io_to_issue(vdev_queue_t *vq, uint64_t pending_limit)
avl_tree_t *t;
vdev_io_t *vi;
int flags;
uint64_t maxspan = zfs_vdev_aggregation_limit;
uint64_t maxspan = MIN(zfs_vdev_aggregation_limit, SPA_MAXBLOCKSIZE);
uint64_t maxgap;
int stretch;
@ -312,7 +312,7 @@ again:
if (fio != lio) {
uint64_t size = IO_SPAN(fio, lio);
ASSERT(size <= zfs_vdev_aggregation_limit);
ASSERT(size <= maxspan);
ASSERT(vi != NULL);
aio = zio_vdev_delegated_io(fio->io_vd, fio->io_offset,