4800f71e23
2) Reduce the acquisitions of the Giant lock in the nfs_socket.c paths significantly. - We don't need to acquire Giant before tsleeping on lbolt anymore, since jhb specialcased lbolt handling in msleep. - nfs_up() needs to acquire Giant only if printing the "server up" message. - nfs_timer() held Giant for the duration of the NFS timer processing, just because the printing of the message in nfs_down() needed it (and we acquire other locks in nfs_timer()). The acquisition of Giant is moved down into nfs_down() now, reducing the time Giant is held in that path. Reported by: Kris Kennaway