> > BH_Mapped > - Buffer has a physical block backing it stored in b_bdev + b_blocknr. This bit > is set by filesystem's get_block() function (or by VFS itself for block device > mappings). > > XXX: Some filesystems set BH_Mapped even for buffers that do no really > have the backing block (like buffers for delayed allocation). I think > we should get rid of it... > Also we don't want get_block to be called multiple times for the same file offset. __block_prepare_write does get_block looking at the BH_Mapped flag. ie one of reason delay and unwritten buffer_heads are also marked mapped. -aneesh -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
