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readahead at least twice the strip size (same as raid0 driver does)

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This commit is contained in:
Zdenek Kabelac 2008-01-08 16:47:10 +00:00
parent 50c41b09cd
commit 1c1b068ff8
1 changed files with 2 additions and 1 deletions
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3
lib/activate/dev_manager.c
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@ -953,7 +953,8 @@ static int _add_new_lv_to_dtree(struct dev_manager *dm, struct dm_tree *dtree,
}
if (read_ahead == DM_READ_AHEAD_AUTO) {
read_ahead = max_stripe_size;
/* we need RA at least twice a whole stripe - see the comment in md/raid0.c */
read_ahead = max_stripe_size * 2;
read_ahead_flags = DM_READ_AHEAD_MINIMUM_FLAG;
}