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ext4: Take read lock during overwrite case.
authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Tue, 29 Jan 2008 04:58:29 +0000 (23:58 -0500)
committerTheodore Ts'o <tytso@mit.edu>
Tue, 29 Jan 2008 04:58:29 +0000 (23:58 -0500)
When we are overwriting a file and not actually allocating new file system
blocks we need to take only the read lock on i_data_sem.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>

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