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De-couple our I/O bio request from the embedded bio in buf by explicitly

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copying the fields.
This commit is contained in:
Poul-Henning Kamp 2004-11-04 08:38:07 +00:00
parent d9506686f3
commit c5d3d25e4f
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=137191
1 changed files with 6 additions and 1 deletions
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7
sys/vm/swap_pager.c
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@ -2374,8 +2374,11 @@ swapgeom_done(struct bio *bp2)
struct buf *bp;
bp = bp2->bio_caller2;
bp->b_ioflags = bp2->bio_flags;
if (bp2->bio_error)
bp->b_ioflags |= BIO_ERROR;
bp->b_resid = bp->b_bcount - bp2->bio_completed;
bp->b_error = bp2->bio_error;
bufdone(bp);
g_destroy_bio(bp2);
}
@ -2393,7 +2396,7 @@ swapgeom_strategy(struct buf *bp, struct swdevt *sp)
bufdone(bp);
return;
}
bio = g_clone_bio(&bp->b_io);
bio = g_new_bio();
if (bio == NULL) {
/*
* XXX: This is better than panicing, but not much better.
@ -2406,6 +2409,8 @@ swapgeom_strategy(struct buf *bp, struct swdevt *sp)
return;
}
bio->bio_caller2 = bp;
bio->bio_cmd = bp->b_iocmd;
bio->bio_data = bp->b_data;
bio->bio_offset = (bp->b_blkno - sp->sw_first) * PAGE_SIZE;
bio->bio_length = bp->b_bcount;
bio->bio_done = swapgeom_done;