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Confirming Peter's fix (locking 101: release the lock before you go

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to sleep). Locking 101, part 2: do not look at buffer contents after
you have been asleep. There is no telling what wonderous changes may
have occurred.
This commit is contained in:
Kirk McKusick 2000-01-13 20:03:22 +00:00
parent 8dc799a226
commit d7127837a2
2 changed files with 0 additions and 4 deletions
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2
sys/contrib/softupdates/ffs_softdep.c
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@ -4566,8 +4566,6 @@ getdirtybuf(bpp, waitfor)
FREE_LOCK_INTERLOCKED(&lk);
tsleep(&bp->b_xflags, PRIBIO, "getbuf", 0);
ACQUIRE_LOCK_INTERLOCKED(&lk);
if (bp->b_xflags & BX_BKGRDINPROG)
panic("getdirtybuf: still writing");
continue;
}
if (waitfor != MNT_WAIT)

2
sys/ufs/ffs/ffs_softdep.c
View File

@ -4566,8 +4566,6 @@ getdirtybuf(bpp, waitfor)
FREE_LOCK_INTERLOCKED(&lk);
tsleep(&bp->b_xflags, PRIBIO, "getbuf", 0);
ACQUIRE_LOCK_INTERLOCKED(&lk);
if (bp->b_xflags & BX_BKGRDINPROG)
panic("getdirtybuf: still writing");
continue;
}
if (waitfor != MNT_WAIT)