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| author | Andrew Morton <akpm@osdl.org> | 2006-12-10 02:19:27 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-10 09:55:41 -0800 |
| commit | 55e829af06681e5d731c03ba04febbd1c76ca293 (patch) | |
| tree | 4304030be250d913f56696ffda8ae660fb17b110 /mm/truncate.c | |
| parent | 8c08540f8755c451d8b96ea14cfe796bc3cd712d (diff) | |
| download | linux-3.10-55e829af06681e5d731c03ba04febbd1c76ca293.tar.gz linux-3.10-55e829af06681e5d731c03ba04febbd1c76ca293.tar.bz2 linux-3.10-55e829af06681e5d731c03ba04febbd1c76ca293.zip | |
[PATCH] io-accounting: write accounting
Accounting writes is fairly simple: whenever a process flips a page from clean
to dirty, we accuse it of having caused a write to underlying storage of
PAGE_CACHE_SIZE bytes.
This may overestimate the amount of writing: the page-dirtying may cause only
one buffer_head's worth of writeout. Fixing that is possible, but probably a
bit messy and isn't obviously important.
Cc: Jay Lan <jlan@sgi.com>
Cc: Shailabh Nagar <nagar@watson.ibm.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Chris Sturtivant <csturtiv@sgi.com>
Cc: Tony Ernst <tee@sgi.com>
Cc: Guillaume Thouvenin <guillaume.thouvenin@bull.net>
Cc: David Wright <daw@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm/truncate.c')
0 files changed, 0 insertions, 0 deletions