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Date: Tue, 28 Dec 2010 18:28:56 +0100 From: Tejun Heo <tj@...nel.org> To: axboe@...nel.dk, linux-kernel@...r.kernel.org, kay.sievers@...y.org, hch@...radead.org Subject: [PATCHSET] block: convert block drivers to ->check_events() This patchset converts all in-kernel block drivers from ->media_changed() to ->check_events(). Most conversions are fairly mechanical. The only notable exceptions are, * 0014-umem: media_changed was dummy. As ->check_events() can be omitted, just drop it. * 0015-pktcdvd: inherits and forwards ->check_events() instead of ->media_changed() from the underlying device. 0001-block-don-t-implicitly-trigger-event-check-on-disk_u.patch 0002-block-don-t-check-events-on-close-unless-it-was-bloc.patch 0003-block-don-t-check-events-while-open-is-in-progress.patch 0004-ide-convert-to-bdops-check_events.patch 0005-floppy-ami-ata-flop-convert-to-bdops-check_events.patch 0006-gdrom-viocd-convert-to-bdops-check_events.patch 0007-paride-convert-to-bdops-check_events.patch 0008-dac960-convert-to-bdops-check_events.patch 0009-swim-3-convert-to-bdops-check_events.patch 0010-ub-convert-to-bdops-check_events.patch 0011-xsysace-convert-to-bdops-check_events.patch 0012-i2o_block-convert-to-bdops-check_events.patch 0013-s390-tape_block-convert-to-bdops-check_events.patch 0014-umem-drop-dummy-media_changed.patch 0015-pktcdvd-convert-to-bdops-check_events.patch 0016-staging-convert-to-bdops-check_events.patch 0001-0003 prepare for further conversions. Some of the conversions are not very well behaved in that they may generate spurious events and allow event polling between event clearing check and the actual clearing. These three patches modify the disk event check behavior such that such faults can be tolerated. 0004-0016 convert all block drivers. Conversions are mostly mechanical, all changes except for one of the staging driver are compile-tested and ide is verified to behave correctly after the conversion. We should be able to remove ->media_changed() in the next devel cycle once the scsi bits and the block branch get merged. This patchset is on top of the current linux-2.6-block/event-handling (fcc57045d53edc35bcce456e60ac4aa802712934) and is available in the following git branch. git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc.git disk-event-convert and contains the following changes. block/genhd.c | 2 - drivers/block/DAC960.c | 8 +++-- drivers/block/amiflop.c | 9 +++--- drivers/block/ataflop.c | 14 +++++---- drivers/block/floppy.c | 10 ++++-- drivers/block/paride/pcd.c | 18 +++++++----- drivers/block/paride/pd.c | 7 ++-- drivers/block/paride/pf.c | 10 ++++-- drivers/block/pktcdvd.c | 13 ++++++-- drivers/block/swim.c | 8 +++-- drivers/block/swim3.c | 11 ++++--- drivers/block/ub.c | 10 ++++-- drivers/block/umem.c | 10 ------ drivers/block/xsysace.c | 9 +++--- drivers/cdrom/gdrom.c | 16 ++++++---- drivers/cdrom/viocd.c | 17 ++++++----- drivers/ide/ide-cd.c | 10 ++++-- drivers/ide/ide-cd.h | 3 +- drivers/ide/ide-cd_ioctl.c | 8 ++--- drivers/ide/ide-gd.c | 14 +++++---- drivers/message/i2o/i2o_block.c | 11 ++++--- drivers/s390/char/tape_block.c | 11 ++++--- drivers/staging/hv/blkvsc_drv.c | 11 ++++--- drivers/staging/westbridge/astoria/block/cyasblkdev_block.c | 11 ++++--- fs/block_dev.c | 11 ++++--- 25 files changed, 152 insertions(+), 110 deletions(-) Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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