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authorChristoph Hellwig <hch@lst.de>2018-07-18 02:51:51 +0300
committerDarrick J. Wong <darrick.wong@oracle.com>2018-07-31 23:18:09 +0300
commit745b3f76d1c889d738a1c4537a3c491bc1ecac4d (patch)
tree29a159f817cb3779f93f6d9140152da18091bb40 /tools/perf/scripts/python
parent9e037cb7972fab5a9f55bca4ebe6e4dbf7e160bc (diff)
downloadlinux-745b3f76d1c889d738a1c4537a3c491bc1ecac4d.tar.xz
xfs: maintain a sequence count for inode fork manipulations
Add a simple 32-bit unsigned integer as the sequence count for modifications to the extent list in the inode fork. This will be used to optimize away extent list lookups in the writeback code. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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