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| author | Nick Piggin <npiggin@suse.de> | 2008-09-22 13:57:50 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-09-23 08:09:14 -0700 |
| commit | db203d53d474aa068984e409d807628f5841da1b (patch) | |
| tree | 7c4352513d8a108b916d2cbe16234346addf179c /mm/mempool.c | |
| parent | 2d4c8266774188cda7f7e612e6dfb8ad12c579d5 (diff) | |
| download | blackbird-op-linux-db203d53d474aa068984e409d807628f5841da1b.tar.gz blackbird-op-linux-db203d53d474aa068984e409d807628f5841da1b.zip | |
mm: tiny-shmem fix lock ordering: mmap_sem vs i_mutex
tiny-shmem calls do_truncate in shmem_file_setup. do_truncate takes
i_mutex, and shmem_file_setup is called with mmap_sem held. However
i_mutex nests outside mmap_sem.
Copy the code in shmem.c to avoid this problem.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Nick Piggin <npiggin@suse.de>
Reported-and-tested-by: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Matt Mackall <mpm@selenic.com>
Cc: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/mempool.c')
0 files changed, 0 insertions, 0 deletions
