On Wed, Feb 18, 2015 at 05:49:28PM +0100, Lukas Czerner wrote: > Currently there is a bug in zero range code which causes zero range > calls to only allocate block aligned portion of the range, while > ignoring the rest in some cases. > > In some cases, namely if the end of the range is past isize, we do > attempt to preallocate the last nonaligned block. However this might > cause kernel to BUG() in some carefully designed zero range requests on > setups where page size > block size. > > Fix this problem by first preallocating the entire range, including the > nonaligned edges and converting the written extents to unwritten in the > next step. This approach will also give us the advantage of having the > range to be as linearly contiguous as possible. > > Signed-off-by: Lukas Czerner <lczerner@xxxxxxxxxx> Thanks, applied. Apologies for the delay. - Ted -- 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
