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Peter Zijlstra
cf0ca9fe5d
Provide a place in sysfs (/sys/class/bdi) for the backing_dev_info object. This allows us to see and set the various BDI specific variables. In particular this properly exposes the read-ahead window for all relevant users and /sys/block/<block>/queue/read_ahead_kb should be deprecated. With patient help from Kay Sievers and Greg KH [[email protected]] - split off NFS and FUSE changes into separate patches - document new sysfs attributes under Documentation/ABI - do bdi_class_init as a core_initcall, otherwise the "default" BDI won't be initialized - remove bdi_init_fmt macro, it's not used very much [[email protected]: fix ia64 warning] Signed-off-by: Peter Zijlstra <[email protected]> Cc: Kay Sievers <[email protected]> Acked-by: Greg KH <[email protected]> Cc: Trond Myklebust <[email protected]> Signed-off-by: Miklos Szeredi <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>