I hate to comment at this late stage, especially on something that I think is really a great idea (I did similar more complex, sys_blkalloc with even more arguments time ago --- I'm glad given how complex this thread has become I didn't post them now). In the past there wasn't that much incentive to get this functionality exposed because of various other issues (mmap + page dirty didn't flush reliably) which are close to being resolve, so I think the timing of this is really great.... On Wed, Mar 21, 2007 at 05:34:25PM +0530, Amit K. Arora wrote: > As suggested by you and Russel, I have made this change to the > patch. Here is how it looks like now. Please let me know if anyone > has concerns about passing arguments this way (breaking each > "loff_t" into two "u32"s). I really dislike breaking 64-bit args up unless it's necessary. I guess it doesn't really hurt, but it feels needlessly ugly. > + .long sys_fallocate /* 320 */ > +/* > + * fallocate() modes > + */ > +#define FA_ALLOCATE 0x1 > +#define FA_DEALLOCATE 0x2 > + given there are the only TWO modes right now, why not leave the arguments as 64-bit sane and simply have two syscalls, one for each? - 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
