Revision 033369d1af1264abc23bea2e174aa47cdd212f6f authored by Artem Bityutskiy on 01 June 2012, 14:18:08 UTC, committed by Al Viro on 01 June 2012, 14:37:36 UTC
This patch stops reiserfs using the VFS 'write_super()' method along with the s_dirt flag, because they are on their way out. The whole "superblock write-out" VFS infrastructure is served by the 'sync_supers()' kernel thread, which wakes up every 5 (by default) seconds and writes out all dirty superblock using the '->write_super()' call-back. But the problem with this thread is that it wastes power by waking up the system every 5 seconds, even if there are no diry superblocks, or there are no client file-systems which would need this (e.g., btrfs does not use '->write_super()'). So we want to kill it completely and thus, we need to make file-systems to stop using the '->write_super()' VFS service, and then remove it together with the kernel thread. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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| File | Mode | Size |
|---|---|---|
| Kconfig | -rw-r--r-- | 5.8 KB |
| Makefile | -rw-r--r-- | 615 bytes |
| amd_iommu.c | -rw-r--r-- | 82.4 KB |
| amd_iommu_init.c | -rw-r--r-- | 42.9 KB |
| amd_iommu_proto.h | -rw-r--r-- | 2.7 KB |
| amd_iommu_types.h | -rw-r--r-- | 19.6 KB |
| amd_iommu_v2.c | -rw-r--r-- | 22.6 KB |
| dmar.c | -rw-r--r-- | 31.3 KB |
| exynos-iommu.c | -rw-r--r-- | 25.1 KB |
| intel-iommu.c | -rw-r--r-- | 105.2 KB |
| intel_irq_remapping.c | -rw-r--r-- | 24.1 KB |
| iommu.c | -rw-r--r-- | 8.6 KB |
| iova.c | -rw-r--r-- | 11.5 KB |
| irq_remapping.c | -rw-r--r-- | 3.2 KB |
| irq_remapping.h | -rw-r--r-- | 2.5 KB |
| msm_iommu.c | -rw-r--r-- | 16.9 KB |
| msm_iommu_dev.c | -rw-r--r-- | 8.9 KB |
| omap-iommu-debug.c | -rw-r--r-- | 9.6 KB |
| omap-iommu.c | -rw-r--r-- | 26.6 KB |
| omap-iovmm.c | -rw-r--r-- | 16.0 KB |
| tegra-gart.c | -rw-r--r-- | 11.0 KB |
| tegra-smmu.c | -rw-r--r-- | 26.9 KB |
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