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authorNick Piggin <npiggin@kernel.dk>2011-01-07 17:49:21 +1100
committerNick Piggin <npiggin@kernel.dk>2011-01-07 17:50:17 +1100
commitfbc8d4c04626e015b18cc61199f505920abb48f0 (patch)
tree31cd59dd54966d225ae159f41308798b2d58b8a2 /tools
parent5adcee1d8d32d7f305f6f5aaefdbf8f35adca177 (diff)
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config fs: avoid switching ->d_op on live dentry
Switching d_op on a live dentry is racy in general, so avoid it. In this case it is a negative dentry, which is safer, but there are still concurrent ops which may be called on d_op in that case (eg. d_revalidate). So in general a filesystem may not do this. Fix configfs so as not to do this. Signed-off-by: Nick Piggin <npiggin@kernel.dk>
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