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由 Theodore Ts'o 提交于
In ext4_ext_map_blocks(), if we have successfully allocated the data blocks, but then run into trouble inserting the extent into the extent tree, most likely due to an ENOSPC condition, determine the arguments to ext4_free_blocks() in a simpler way which is easier to prove to be correct. Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
c8e15130