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The sanitize support is added as a user-app ioctl call, and was removed from the block-device request, since its purpose is to be invoked not via File-System but by a user. This feature deletes the unmap memory region of the eMMC card, by writing to a specific register in the EXT_CSD. unmap region is the memory region that was previously deleted (by erase, trim or discard operation). In order to avoid timeout when sanitizing large-scale cards, the timeout for sanitize operation is 240 seconds. Signed-off-by: Yaniv Gardi <ygardi@codeaurora.org> Signed-off-by: Maya Erez <merez@codeaurora.org> Signed-off-by: Chris Ball <cjb@laptop.org> Conflicts: drivers/mmc/card/block.c |
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