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Sergey Senozhatsky authored
This patch makes some preparations for on-demand device add/remove functionality. Remove `zram_devices' array and switch to id-to-pointer translation (idr). idr doesn't bloat zram struct with additional members, f.e. list_head, yet still provides ability to match the device_id with the device pointer. No user-space visible changes. [Julia.Lawall@lip6.fr: return -ENOMEM when `queue' alloc fails] Signed-off-by:
Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Reported-by:
Julia Lawall <Julia.Lawall@lip6.fr> Acked-by:
Minchan Kim <minchan@kernel.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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