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Check error return from g_clone_bio(). (netchild@)

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Add XXX comment about why this is still not optimal. (phk@)

Submitted by:	netchild@
This commit is contained in:
Poul-Henning Kamp 2004-02-02 13:08:03 +00:00
parent 42fd931ee9
commit 3e5b686160
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=125322
1 changed files with 11 additions and 0 deletions
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11
sys/vm/swap_pager.c
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@ -2415,6 +2415,17 @@ swapgeom_strategy(struct buf *bp, struct swdevt *sp)
return;
}
bio = g_clone_bio(&bp->b_io);
if (bio == NULL) {
/*
* XXX: This is better than panicing, but not much better.
* XXX: Somehow this should be retried. A more generic
* XXX: implementation of ENOMEM in geom may be able to cope.
*/
bp->b_error = ENOMEM;
bp->b_ioflags |= BIO_ERROR;
bufdone(bp);
return;
}
bio->bio_caller2 = bp;
bio->bio_offset = (bp->b_blkno - sp->sw_first) * PAGE_SIZE;
bio->bio_length = bp->b_bcount;