diff options
| author | Peng Tao | 2015-01-19 05:41:16 +0100 |
|---|---|---|
| committer | Tom Haynes | 2015-02-03 20:06:52 +0100 |
| commit | 5fadeb47dcc5c30d4b6cf481b4a78689eab59443 (patch) | |
| tree | 61144dbb7c04d5ddae49174c122ef1c686712b06 /mm/page_alloc.c | |
| parent | nfs41: wait for LAYOUTRETURN before retrying LAYOUTGET (diff) | |
| download | kernel-qcow2-linux-5fadeb47dcc5c30d4b6cf481b4a78689eab59443.tar.gz kernel-qcow2-linux-5fadeb47dcc5c30d4b6cf481b4a78689eab59443.tar.xz kernel-qcow2-linux-5fadeb47dcc5c30d4b6cf481b4a78689eab59443.zip | |
nfs: count DIO good bytes correctly with mirroring
When resending to MDS, we might resend multiple mirroring
requests to MDS. As a result, nfs_direct_good_bytes() ends
up counting bytes multiple times, causing application to
get wrong return results in read/write syscalls.
Fix it by tracking start of a dreq and checking the range of
pgio header.
Cc: Weston Andros Adamson <dros@primarydata.com>
Signed-off-by: Peng Tao <tao.peng@primarydata.com>
Diffstat (limited to 'mm/page_alloc.c')
0 files changed, 0 insertions, 0 deletions