Displaying 5 results from an estimated 5 matches for "d_walk".
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pgd_walk
2014 Mar 12
2
[PATCH v6 04/11] qspinlock: Optimized code path for 2 contending tasks
...4ac8 ffff883f4c048510 ffff883f910a02d0
ffff881f920fb
e50
[ 1529.936714] ffffffff811c2d03 0000000000000000 00ff881f920fbe50
0000896600000
000
[ 1529.936714] ffff883f8d4587d8 ffff883f8d458780 ffffffff811c1770
ffff881f920fb
e60
[ 1529.936714] Call Trace:
[ 1529.936714] [<ffffffff811c2d03>] d_walk+0xc3/0x260
[ 1529.936714] [<ffffffff811c1770>] ? check_and_collect+0x30/0x30
[ 1529.936714] [<ffffffff811c3985>] shrink_dcache_for_umount+0x75/0x120
[ 1529.936714] [<ffffffff811adf21>] generic_shutdown_super+0x21/0xf0
[ 1529.936714] [<ffffffff811ae207>] kill_block_super+...
2014 Mar 12
2
[PATCH v6 04/11] qspinlock: Optimized code path for 2 contending tasks
...4ac8 ffff883f4c048510 ffff883f910a02d0
ffff881f920fb
e50
[ 1529.936714] ffffffff811c2d03 0000000000000000 00ff881f920fbe50
0000896600000
000
[ 1529.936714] ffff883f8d4587d8 ffff883f8d458780 ffffffff811c1770
ffff881f920fb
e60
[ 1529.936714] Call Trace:
[ 1529.936714] [<ffffffff811c2d03>] d_walk+0xc3/0x260
[ 1529.936714] [<ffffffff811c1770>] ? check_and_collect+0x30/0x30
[ 1529.936714] [<ffffffff811c3985>] shrink_dcache_for_umount+0x75/0x120
[ 1529.936714] [<ffffffff811adf21>] generic_shutdown_super+0x21/0xf0
[ 1529.936714] [<ffffffff811ae207>] kill_block_super+...
2014 Mar 13
0
[PATCH v6 04/11] qspinlock: Optimized code path for 2 contending tasks
...>+ BUG_ON(lw != _QSPINLOCK_WAITING);
> >+ }
> It was found that when I used a direct memory store instead of an atomic op,
> the following kernel crash might happen at filesystem dismount time:
>
> [ 1529.936714] Call Trace:
> [ 1529.936714] [<ffffffff811c2d03>] d_walk+0xc3/0x260
> [ 1529.936714] [<ffffffff811c1770>] ? check_and_collect+0x30/0x30
> [ 1529.936714] [<ffffffff811c3985>] shrink_dcache_for_umount+0x75/0x120
> [ 1529.936714] [<ffffffff811adf21>] generic_shutdown_super+0x21/0xf0
> [ 1529.936714] [<ffffffff811ae207>...
2014 Mar 12
17
[PATCH v6 00/11] qspinlock: a 4-byte queue spinlock with PV support
v5->v6:
- Change the optimized 2-task contending code to make it fairer at the
expense of a bit of performance.
- Add a patch to support unfair queue spinlock for Xen.
- Modify the PV qspinlock code to follow what was done in the PV
ticketlock.
- Add performance data for the unfair lock as well as the PV
support code.
v4->v5:
- Move the optimized 2-task contending code to the
2014 Mar 12
17
[PATCH v6 00/11] qspinlock: a 4-byte queue spinlock with PV support
v5->v6:
- Change the optimized 2-task contending code to make it fairer at the
expense of a bit of performance.
- Add a patch to support unfair queue spinlock for Xen.
- Modify the PV qspinlock code to follow what was done in the PV
ticketlock.
- Add performance data for the unfair lock as well as the PV
support code.
v4->v5:
- Move the optimized 2-task contending code to the