zram: delete zram_init_device() function
allocate new `zram_meta' in disksize_store() only for uninitialised
zram device, saving a number of allocations and deallocations in case
if disksize_store() was called on currently used device. at the same
time zram_meta stack variable is not necessary, because we can set
->meta directly. there is also no need in setting QUEUE_FLAG_NONROT
queue on every disksize_store(), set it once during device creation.
[minchan@kernel.org]: handled zram->meta alloc fail case.
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
1 file changed
