tree 032d882544ef73d2e99208de7a6e6340df3d31ea
parent 16a8b70a5a757db513f036bbcc73309f6c507d81
author Sage Weil <sage@newdream.net> 1299113721 -0800
committer Sage Weil <sage@newdream.net> 1299188859 -0800

libceph: fix handling of short returns from get_user_pages

get_user_pages() can return fewer pages than we ask for.  We were returning
a bogus pointer/error code in that case.  Instead, loop until we get all
the pages we want or get an error we can return to the caller.

Signed-off-by: Sage Weil <sage@newdream.net>