Henrique de Moraes Holschuh (HE12025-12-29): > The "does not even hit the underlying storage" behavior is a function > of the Linux page-cache, and most of the widely-used filesystems > (certainly ext4 and xfs) will behave like that unless specifically > configured to operate in "sync" mode.
Sure, but that raises all sorts of questions about HOW it is done. For example what happens two files are submitted for writing, but the first one would use the last block of the device? The second one should error with No space left on device, but that would imply the free blocks were already updated to account for the first one before it could have reached the block device.
