This is a rework of the directory readahead panic fix based on a buffer I/O count mechanism. See [1] for the original patch and subsequent discussion leading to the solution as constituted. This is split into multiple patches simply to break out some refactoring and special buffer exclusion from the accounting mechanism. This prevents the original problem (xfs/311) as well as passes an initial xfstests run. Brian [1] http://oss.sgi.com/pipermail/xfs/2016-June/049946.html Brian Foster (3): xfs: helper to set flags on uncached buffer reads xfs: exclude never-released buffers from buftarg I/O accounting xfs: track and serialize in-flight async buffers against unmount fs/xfs/xfs_buf.c | 177 ++++++++++++++++++++++++++++++++++++++++------------- fs/xfs/xfs_buf.h | 8 +++ fs/xfs/xfs_log.c | 4 +- fs/xfs/xfs_mount.c | 12 ++-- 4 files changed, 151 insertions(+), 50 deletions(-) -- 2.5.5 _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
