On Tue, Jul 03, 2007 at 03:38:48PM +0530, Amit K. Arora wrote:
quoted text
> > FA_FL_DEALLOC		0x01 /* deallocate unwritten extent (default allocate) */
> > FA_FL_KEEP_SIZE	0x02 /* keep size for EOF {pre,de}alloc (default change size) */
> > FA_FL_DEL_DATA	0x04 /* delete existing data in alloc range (default keep) */
> 
> We now have two sets of flags - 
> 1) the above three with which I think no one has any issues with, and

Yes, I do.  FA_FL_DEL_DATA is plain stupid, a preallocation call should
never delete data.  FA_FL_DEALLOC should probably be a separate syscall
because it's very different functionality.

While we're at it I also dislike the FA_ prefix becuase it doesn't say
anything and is far too generic.  FALLOC_ is much better.

quoted text
> > FA_FL_ERR_FREE	0x08 /* free preallocation on error (default keep prealloc) */

NACK on this one.  We should have just one behaviour, and from the thread
that not freeing the allocation on error.

quoted text
> > FA_FL_NO_MTIME	0x10 /* keep same mtime (default change on size, data change) */
> > FA_FL_NO_CTIME	0x20 /* keep same ctime (default change on size, data change) */

NACK to these aswell.  If i_size changes c/mtime need updates, if the size
doesn't chamge they don't.  No need to add more flags for this.
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