Hi Simon, > Hi Tsuruta-san, > > have you run sparse over this code? There seem to be a few interesting > warnings generated (and some at the top noise too). Thank you for your comment. I'll do sparse every time from now on. > $ make C=1 CF="-D__CHECK_ENDIAN__" > [snip] > include/trace/events/dm-ioband.h:9:1: warning: symbol 'ftrace_raw_output_ioband_hold_urgent_bio' was not declared. Should it be static? [snip ftrace warnings] > drivers/md/dm-ioband-ctl.c:178:2: warning: context problem in 'suspend_ioband_device': '_spin_unlock_irqrestore' expected different context > drivers/md/dm-ioband-ctl.c:178:2: context 'lock': wanted >= 1, got 0 > drivers/md/dm-ioband-ctl.c:600:3: warning: context imbalance in 'prevent_burst_bios': unexpected unlock > drivers/md/dm-ioband-ctl.c:600:3: context '<noident>': wanted 0, got -1 > drivers/md/dm-ioband-ctl.c:816:3: warning: context imbalance in 'ioband_map': __context__ statement expected different context > drivers/md/dm-ioband-ctl.c:816:3: context '<noident>': wanted >= 0, got -1 > drivers/md/dm-ioband-rangebw.c:287:4: warning: context imbalance in 'range_bw_queue_full': __context__ statement expected different context > drivers/md/dm-ioband-rangebw.c:287:4: context '<noident>': wanted >= 0, got -1 These imbalances are not warned by the latest sparse command retrieved from the git repository, and actually they are not imbalanced. > drivers/md/dm-ioband-rangebw.c:592:6: warning: symbol 'range_bw_timeover' was not declared. Should it be static? > drivers/md/dm-ioband-rangebw.c:210: warning: 'io_mode' may be used uninitialized in this function I'll fix these warnings and post the update soon. Thanks, Ryo Tsuruta -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel