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| author |   Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2016-07-26 15:26:29 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2016-07-26 16:19:19 -0700 |
| commit | 4595ef88d136134a9470c955575640f5c96344ed (patch) | |
| tree | 2bade796ca5b0dc90138726ab7438b4fa136328e /include/trace/events/huge_memory.h | |
| parent | khugepaged: move up_read(mmap_sem) out of khugepaged_alloc_page() (diff) | |
| download | linux-dev-4595ef88d136134a9470c955575640f5c96344ed.tar.xz linux-dev-4595ef88d136134a9470c955575640f5c96344ed.zip | |
shmem: make shmem_inode_info::lock irq-safe
We are going to need to call shmem_charge() under tree_lock to get
accoutning right on collapse of small tmpfs pages into a huge one.
The problem is that tree_lock is irq-safe and lockdep is not happy, that
we take irq-unsafe lock under irq-safe[1].
Let's convert the lock to irq-safe.
[1] https://gist.github.com/kiryl/80c0149e03ed35dfaf26628b8e03cdbc
Link: http://lkml.kernel.org/r/1466021202-61880-34-git-send-email-kirill.shutemov@linux.intel.com
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/trace/events/huge_memory.h')
0 files changed, 0 insertions, 0 deletions