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  1. 06 5月, 2015 1 次提交
  3. 11 7月, 2013 1 次提交
  5. 20 3月, 2012 1 次提交
  7. 01 11月, 2011 1 次提交
  9. 31 3月, 2011 1 次提交
  11. 09 8月, 2010 1 次提交
    • J
      drivers/ide: Use memdup_user · 7d543d84
      由 Julia Lawall 提交于 
      Use memdup_user when user data is immediately copied into the
allocated region.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression from,to,size,flag;
position p;
identifier l1,l2;
@@

-  to = \(kmalloc@p\|kzalloc@p\)(size,flag);
+  to = memdup_user(from,size);
   if (
-      to==NULL
+      IS_ERR(to)
                 || ...) {
   <+... when != goto l1;
-  -ENOMEM
+  PTR_ERR(to)
   ...+>
   }
-  if (copy_from_user(to, from, size) != 0) {
-    <+... when != goto l2;
-    -EFAULT
-    ...+>
-  }
// </smpl>
Signed-off-by: NJulia Lawall <julia@diku.dk>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      7d543d84
  13. 07 4月, 2010 1 次提交
    • M
      ide: Fix IDE taskfile with cfq scheduler · 720fc22a
      由 Mikulas Patocka 提交于 
      When ide taskfile access is being used (for example with hdparm --security
commands) and cfq scheduler is selected, the scheduler crashes on BUG in
cfq_put_request.

The reason is that the cfq scheduler is tracking counts of read and write
requests separately; the ide-taskfile subsystem allocates a read request and
then flips the flag to make it a write request. The counters in cfq will
mismatch.

This patch changes ide-taskfile to allocate the READ or WRITE request as
required and don't change the flag later.
Signed-off-by: NMikulas Patocka <mpatocka@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      720fc22a
  15. 08 8月, 2009 4 次提交
  17. 07 6月, 2009 1 次提交
  19. 18 5月, 2009 1 次提交
  21. 11 5月, 2009 1 次提交
  23. 28 4月, 2009 1 次提交
    • T
      ide-taskfile: don't abuse rq->buffer · d868ca24
      由 Tejun Heo 提交于 
      Impact: rq->buffer usage cleanup

ide_raw_taskfile() directly uses rq->buffer to carry pointer to the
data buffer.  This complicates both block interface and ide backend
request handling.  Use blk_rq_map_kern() instead and drop special
handling for REQ_TYPE_ATA_TASKFILE from ide_map_sg().

Note that REQ_RW setting is moved upwards as blk_rq_map_kern() uses it
to initialize bio rw flag.
Signed-off-by: NTejun Heo <tj@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
      d868ca24
  25. 19 4月, 2009 1 次提交
    • T
      ide-taskfile: don't abuse rq->buffer · eace4cb0
      由 Tejun Heo 提交于 
      Impact: rq->buffer usage cleanup

ide_raw_taskfile() directly uses rq->buffer to carry pointer to the
data buffer.  This complicates both block interface and ide backend
request handling.  Use blk_rq_map_kern() instead and drop special
handling for REQ_TYPE_ATA_TASKFILE from ide_map_sg().

Note that REQ_RW setting is moved upwards as blk_rq_map_kern() uses it
to initialize bio rw flag.
Signed-off-by: NTejun Heo <tj@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
      eace4cb0
  27. 08 4月, 2009 5 次提交
  29. 01 4月, 2009 6 次提交
  31. 27 3月, 2009 13 次提交