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| author |   Chris Mason <chris.mason@oracle.com> | 2010-10-29 11:16:17 -0400 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2010-10-29 11:25:29 -0400 |
| commit | 3259f8bed2f0f57c2fdcdac1b510c3fa319ef97e (patch) | |
| tree | 5f06f6c83413ca2fc7aec85ba0811a8c91904097 /tools/perf/scripts/python/syscall-counts.py | |
| parent | Btrfs: don't loop forever on bad btree blocks (diff) | |
| download | wireguard-linux-3259f8bed2f0f57c2fdcdac1b510c3fa319ef97e.tar.xz wireguard-linux-3259f8bed2f0f57c2fdcdac1b510c3fa319ef97e.zip | |
Add new functions for triggering inode writeback
When btrfs is running low on metadata space, it needs to force delayed
allocation pages to disk. It currently does this with a suboptimal walk
of a private list of inodes with delayed allocation, and it would be
much better if we used the generic flusher threads.
writeback_inodes_sb_if_idle would be ideal, but it waits for the flusher
thread to start IO on all the dirty pages in the FS before it returns.
This adds variants of writeback_inodes_sb* that allow the caller to
control how many pages get sent down.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts.py')
0 files changed, 0 insertions, 0 deletions