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Date: Tue, 20 Jul 2010 22:34:55 +0200 From: Tejun Heo <tj@...nel.org> To: linux-kernel@...r.kernel.org, dhowells@...hat.com, sfrench@...ba.org, anton@...ba.org, swhiteho@...hat.com, airlied@...ux.ie, dri-devel@...ts.freedesktop.org Subject: [PATCHSET wq#for-next] workqueue: replace slow-work with workqueue Hello, With cmwq, workqueue now can handle all use cases of slow-work. This patchset converts all slow-work users to use workqueue instead and remove slow-work from the kernel. The following users are converted. * fscache-object: a dedicated unbound workqueue is used. * fscache-operation: a dedicated unbound workqueue is used. * cifs: system_nrt_wq is used. * gfs2: a dedicated nrt workqueue is used. * drm: system_nrt_wq is used. cifs and gfs2 conversions largely remained unchanged from the last posting. fscache conversions are updated to use unbound workqueues and debugfs support is dropped for now (workqueue debugfs support is not included in wq#for-next). Tracing API based debug implementation is planned. The drm conversion is new but the conversion is mostly trivial and my simplistic testing involving plugging and unplugging monitor works fine. David, fscache conversion now uses unbound workqueues and it should behave virtually the same with slow-work. As whether cmwq will get merged isn't completely clear yet, I think it would be better to keep these changes in the wq tree instead of scattering them around multiple trees. Would the maintainers be okay with that? This patchset contains the following patches. 0001-fscache-convert-object-to-use-workqueue-instead-of-s.patch 0002-fscache-convert-operation-to-use-workqueue-instead-o.patch 0003-fscache-drop-references-to-slow-work.patch 0004-cifs-use-workqueue-instead-of-slow-work.patch 0005-gfs2-use-workqueue-instead-of-slow-work.patch 0006-drm-use-workqueue-instead-of-slow-work.patch 0007-slow-work-kill-it.patch It's on top of the following branch. git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq.git for-next and is available in the following git branch git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq.git review-slow-work-conversion and contains the following changes. Documentation/filesystems/caching/fscache.txt | 10 Documentation/slow-work.txt | 322 ------- drivers/gpu/drm/drm_crtc_helper.c | 29 fs/cachefiles/namei.c | 13 fs/cachefiles/rdwr.c | 4 fs/cifs/Kconfig | 1 fs/cifs/cifsfs.c | 5 fs/cifs/cifsglob.h | 8 fs/cifs/dir.c | 2 fs/cifs/file.c | 30 fs/cifs/misc.c | 20 fs/fscache/Kconfig | 1 fs/fscache/internal.h | 8 fs/fscache/main.c | 104 ++ fs/fscache/object-list.c | 11 fs/fscache/object.c | 106 +- fs/fscache/operation.c | 67 - fs/fscache/page.c | 36 fs/gfs2/Kconfig | 1 fs/gfs2/incore.h | 3 fs/gfs2/main.c | 14 fs/gfs2/ops_fstype.c | 8 fs/gfs2/recovery.c | 54 - fs/gfs2/recovery.h | 6 fs/gfs2/sys.c | 3 include/drm/drm_crtc.h | 3 include/linux/fscache-cache.h | 47 - include/linux/slow-work.h | 163 --- init/Kconfig | 24 kernel/Makefile | 2 kernel/slow-work-debugfs.c | 227 ----- kernel/slow-work.c | 1068 -------------------------- kernel/slow-work.h | 72 - kernel/sysctl.c | 8 34 files changed, 292 insertions(+), 2188 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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