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authorLinus Torvalds <torvalds@g5.osdl.org>2006-06-26 11:55:42 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-26 11:55:42 -0700
commit09c0dc68625c06f5b1e786aad0d5369b592179e6 (patch)
tree19fd06de08792a4c07ee8b61e5615ee35e8ccec0 /include
parent2a2ed2db353d949c06b6ef8b6913f65b39111eab (diff)
Revert "[PATCH] kthread: update loop.c to use kthread"
This reverts commit c7b2eff059fcc2d1b7085ee3d84b79fd657a537b. Hugh Dickins explains: "It seems too little tested: "losetup -d /dev/loop0" fails with EINVAL because nothing sets lo_thread; but even when you patch loop_thread() to set lo->lo_thread = current, it can't survive more than a few dozen iterations of the loop below (with a tmpfs mounted on /tst): j=0 cp /dev/zero /tst while : do let j=j+1 echo "Doing pass $j" losetup /dev/loop0 /tst/zero mkfs -t ext2 -b 1024 /dev/loop0 >/dev/null 2>&1 mount -t ext2 /dev/loop0 /mnt umount /mnt losetup -d /dev/loop0 done it collapses with failed ioctl then BUG_ON(!bio). I think the original lo_done completion was more subtle and safe than the kthread conversion has allowed for." Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/loop.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/loop.h b/include/linux/loop.h
index bf3d2345ce99..e76c7611d6cc 100644
--- a/include/linux/loop.h
+++ b/include/linux/loop.h
@@ -59,7 +59,7 @@ struct loop_device {
struct bio *lo_bio;
struct bio *lo_biotail;
int lo_state;
- struct task_struct *lo_thread;
+ struct completion lo_done;
struct completion lo_bh_done;
struct mutex lo_ctl_mutex;
int lo_pending;