diff options
| author | Jan Kara <[email protected]> | 2009-09-16 19:22:48 +0200 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2009-09-25 18:08:24 +0200 |
| commit | a5989bdc981ec85e0734ac22519cc0b780813d7b (patch) | |
| tree | 74cc93bd420b7bd044e3fd5451c652b3742015e6 /tools/perf/scripts/python/check-perf-trace.py | |
| parent | 7fa07729e439a6184bd824746d06a49cca553f15 (diff) | |
fs: Fix busyloop in wb_writeback()
If all inodes are under writeback (e.g. in case when there's only one inode
with dirty pages), wb_writeback() with WB_SYNC_NONE work basically degrades
to busylooping until I_SYNC flags of the inode is cleared. Fix the problem by
waiting on I_SYNC flags of an inode on b_more_io list in case we failed to
write anything.
Tested-by: Wu Fengguang <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/check-perf-trace.py')
0 files changed, 0 insertions, 0 deletions