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71f4d95b23
(.request_fn) from request-based DM. Jens has already started preparing for complete removal of the legacy IO path in 4.21 but this earlier removal of support from DM has been coordinated with Jens (as evidenced by the commit being attributed to him). Making request-based DM exclussively blk-mq only cleans up that portion of DM core quite nicely. - Convert the thinp and zoned targets over to using refcount_t where applicable. - A couple fixes to the DM zoned target for refcounting and other races buried in the implementation of metadata block creation and use. - Small cleanups to remove redundant unlikely() around a couple WARN_ON_ONCE(). - Simplify how dm-ioctl copies from userspace, eliminating some potential for a malicious user trying to change the executed ioctl after its processing has begun. - Tweaked DM crypt target to use the DM device name when naming the various workqueues created for a particular DM crypt device (makes the N workqueues for a DM crypt device more easily understood and enhances user's accounting capabilities at a glance via "ps") - Small fixup to remove dead branch in DM writecache's memory_entry(). -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAABAgAGBQJb0zCmAAoJEMUj8QotnQNaUKwIAKFC3cuTtQyh3LomSbT4uAr5 6apBSVcxVhqU+isriW3HmBPkO4HGyqMWjX5oQGHrOj0YK0i1H65Nq3qH9ATaiSHn awdo8A4YmClF5Mojc51UebXIH0IfnGSOKH/FHNhQzT3jAdn+vYinMSZ28JwFPgKW DsVOSM1dlJZBWRXhQNpyCjVl9Xb3rRUOnkfG0endyMfOsnoxKurhwSkXoStzCdQn O5ubt1XT3wMKoI1k9QWjfrBU1NtZZYD+kQ6EfkYXfL9RNhhZjwzO/eNtqT3jnKsq qbcd8/0JIUttPf7+F0URG9mbMbebfJGqNAaJWcnlRbCHmgUBBGVWsnl8MTWOLkw= =MdDN -----END PGP SIGNATURE----- Merge tag 'for-4.20/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm Pull device mapper updates from Mike Snitzer: - The biggest change this cycle is to remove support for the legacy IO path (.request_fn) from request-based DM. Jens has already started preparing for complete removal of the legacy IO path in 4.21 but this earlier removal of support from DM has been coordinated with Jens (as evidenced by the commit being attributed to him). Making request-based DM exclussively blk-mq only cleans up that portion of DM core quite nicely. - Convert the thinp and zoned targets over to using refcount_t where applicable. - A couple fixes to the DM zoned target for refcounting and other races buried in the implementation of metadata block creation and use. - Small cleanups to remove redundant unlikely() around a couple WARN_ON_ONCE(). - Simplify how dm-ioctl copies from userspace, eliminating some potential for a malicious user trying to change the executed ioctl after its processing has begun. - Tweaked DM crypt target to use the DM device name when naming the various workqueues created for a particular DM crypt device (makes the N workqueues for a DM crypt device more easily understood and enhances user's accounting capabilities at a glance via "ps") - Small fixup to remove dead branch in DM writecache's memory_entry(). * tag 'for-4.20/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm writecache: remove disabled code in memory_entry() dm zoned: fix various dmz_get_mblock() issues dm zoned: fix metadata block ref counting dm raid: avoid bitmap with raid4/5/6 journal device dm crypt: make workqueue names device-specific dm: add dm_table_device_name() dm ioctl: harden copy_params()'s copy_from_user() from malicious users dm: remove unnecessary unlikely() around WARN_ON_ONCE() dm zoned: target: use refcount_t for dm zoned reference counters dm thin: use refcount_t for thin_c reference counting dm table: require that request-based DM be layered on blk-mq devices dm: rename DM_TYPE_MQ_REQUEST_BASED to DM_TYPE_REQUEST_BASED dm: remove legacy request-based IO path |
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