On 4/16/21 3:18 PM, Saravanan D wrote: > From: Calvin Owens <calvinowens@xxxxxx> > > While the maximum size of each ramdisk is defined either > as a module parameter, or compile time default, it's impossible > to know how many pages have currently been allocated by each > ram%d device, since they're allocated when used and never freed. > > This patch creates a new directory at this location: > > » /sys/kernel/debug/ramdisk_pages/ > > ...which will contain a file named "ram%d" for each instantiated > ramdisk on the system. The file is read-only, and read() will > output the number of pages currently held by that ramdisk. I folded in the justification and applied it for 5.13, thanks. -- Jens Axboe
