> On Thu, Apr 8, 2010 at 11:34 AM, Joel Fernandes <agnel.joel@xxxxxxxxx> > wrote: >> >> Could anyone explain the significance of the BH_Boundary flag in a >> buffer head. and when you should this flag be set or cleared? >> What other effects does setting or clearing this flag have? >> > Set if the block to be submitted after this one will not be adjacent to this > one. > Do you mean the next logical block (in an inode) is not physically adjancent to the current block being submitted? Wouldn't it be hard to determine this as then you would have to map the next logical block to determine its physical number and check if it is adjacent to the current block. Could you tell me what would happen if we never set this flag? I appreciate your response, thanks a lot. It might be a better idea to bottom post, people get pissed otherwise. You could see a sample here: http://en.wikipedia.org/wiki/Posting_style#Bottom-posting Thanks, -Joel -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
