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| author | Boaz Harrosh <bharrosh@panasas.com> | 2011-08-03 21:54:33 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-08-29 13:29:08 -0700 |
| commit | b861a2580da034f6a57517c687ded68e20f99763 (patch) | |
| tree | ea6409d60334148fddb6a34c5a0cc50e3377d4c9 /fs/nfs/callback_xdr.c | |
| parent | 3be1216c9e9976074d49414a53abf572ec4b4a24 (diff) | |
| download | kernel_samsung_smdk4412-b861a2580da034f6a57517c687ded68e20f99763.zip kernel_samsung_smdk4412-b861a2580da034f6a57517c687ded68e20f99763.tar.gz kernel_samsung_smdk4412-b861a2580da034f6a57517c687ded68e20f99763.tar.bz2 | |
pnfs-obj: Bug when we are running out of bio
commit 20618b21da0796115e81906d24ff1601552701b7 upstream.
When we have a situation that the number of pages we want
to encode is bigger then the size of the bio. (Which can
currently happen only when all IO is going to a single device
.e.g group_width==1) then the IO is submitted short and we
report back only the amount of bytes we actually wrote/read
and all is fine. BUT ...
There was a bug that the current length counter was advanced
before the fail to add the extra page, and we come to a situation
that the CDB length was one-page longer then the actual bio size,
which is of course rejected by the osd-target.
While here also fix the bio size calculation, in the case
that we received more then one group of devices.
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs/nfs/callback_xdr.c')
0 files changed, 0 insertions, 0 deletions