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New BusyBox applet - readahead example (1)
Added lines... Tested with BusyBox 1.8.2
include/applets.h
USE_READAHEAD(APPLET(readahead, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
include/usage.h
#define readahead_trivial_usage \
"[FILE]..."
#define readahead_full_usage \
"Preloads FILE(s) in RAM cache so that subsequent reads" \ "for those files do not block on disk I/O."