PG_BUSY 390 fs/nfs/pagelist.c clear_bit(PG_BUSY, &req->wb_flags); PG_BUSY 394 fs/nfs/pagelist.c wake_up_bit(&req->wb_flags, PG_BUSY); PG_BUSY 474 fs/nfs/pagelist.c if (!test_bit(PG_BUSY, &req->wb_flags)) PG_BUSY 478 fs/nfs/pagelist.c return wait_on_bit_io(&req->wb_flags, PG_BUSY, PG_BUSY 114 include/linux/nfs_page.h #define NFS_WBACK_BUSY(req) (test_bit(PG_BUSY,&(req)->wb_flags)) PG_BUSY 153 include/linux/nfs_page.h return !test_and_set_bit(PG_BUSY, &req->wb_flags);