Messages in this thread | | | From | Sergey Senozhatsky <> | Subject | [PATCHv3 0/8] introduce dynamic device creation/removal | Date | Tue, 3 Mar 2015 21:49:42 +0900 |
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Hello,
This patchset introduces zram-control sysfs class, which has two sysfs attrs: - zram_add -- add a new specific (device_id) zram device - zram_remove -- remove a specific (device_id) zram device
Usage example: # add a new specific zram device echo 4 > /sys/class/zram-control/zram_add
# remove a specific zram device echo 4 > /sys/class/zram-control/zram_remove
Patch set also does some cleanups and huge code reorganization.
v3: -- add missing add/remove documentation -- add patch 0008 -- pair class register with unregister, not class destroy function -- do not leak class on register_blkdev() error -- fix kernel version typo (should be 4.1) in documentation
v2: -- switch to sysfs class, rather than using /dev/zram-control node and doing IOCTL on it. we lose some features, though. like automatic device_id generation.
Sergey Senozhatsky (8): zram: cosmetic ZRAM_ATTR_RO code formatting tweak zram: use idr instead of `zram_devices' array zram: factor out device reset from reset_store() zram: reorganize code layout zram: add dynamic device add/remove functionality zram: remove max_num_devices limitation zram: report every added and removed device zram: trivial: correct flag operations comment
Documentation/ABI/testing/sysfs-class-zram | 23 + Documentation/blockdev/zram.txt | 21 +- drivers/block/zram/zram_drv.c | 795 +++++++++++++++++------------ drivers/block/zram/zram_drv.h | 6 - 4 files changed, 499 insertions(+), 346 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-class-zram
-- 2.3.1.167.g7f4ba4b
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