usermodehelper: Tidy up waiting

Rather than using a tri-state integer for the wait flag in
call_usermodehelper_exec, define a proper enum, and use that.  I've
preserved the integer values so that any callers I've missed should
still work OK.

Signed-off-by: Jeremy Fitzhardinge <[email protected]>
Cc: James Bottomley <[email protected]>
Cc: Randy Dunlap <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Johannes Berg <[email protected]>
Cc: Ralf Baechle <[email protected]>
Cc: Bjorn Helgaas <[email protected]>
Cc: Joel Becker <[email protected]>
Cc: Tony Luck <[email protected]>
Cc: Kay Sievers <[email protected]>
Cc: Srivatsa Vaddagiri <[email protected]>
Cc: Oleg Nesterov <[email protected]>
Cc: David Howells <[email protected]>

0 files changed, 0 insertions, 0 deletions