On Thu, Nov 29, 2012 at 11:40:37AM -0500, bjschuma@xxxxxxxxxx wrote: > From: Bryan Schumaker <bjschuma@xxxxxxxxxx> > > While working on p2p-nfs, I discovered that I sometimes need to clear > state for a specific client to test all possible error recovery conditions. > The current fault injection code deletes state as it find it, so it can > be difficult to guess which state will be forgotten. In addition, I > currently print out the amount of state forgotten but I don't give details > like "Forgot 3 locks from client w.x.y.z". These patches set out to > improve that. > > The first 6 patches clean up the current code and prepare it for specific > client state removal. Patch 7 adds printing information to the server's logs > when a fault injection file is read (such as "Client w.x.y.z has 3 open > files"). Patch 8 adds in a custom file operations structure so users can > write strings to fault injection files in addition to u64s. Finally, patch > 9 allows users to remove state by writing a client's IP address to one of > the files. > > Changes in v4: > - Access lock state from open owners rather than requiring a network namespace > pointer. > - Don't produce a null pointer expection if fault injection is attempted after > loading the nfsd module but before running any nfsd threads. OK, thanks for your patience, applying this version (pending some basic testing). --b. > > - Bryan > > Bryan Schumaker (9): > NFSD: Lock state before calling fault injection function > NFSD: Clean up forgetting clients > NFSD: Clean up forgetting locks > NFSD: Clean up forgetting openowners > NFSD: Clean up forgetting and recalling delegations > NFSD: Fault injection operations take a per-client forget function > NFSD: Reading a fault injection file prints a state count > NFSD: Add a custom file operations structure for fault injection > NFSD: Forget state for a specific client > > fs/nfsd/fault_inject.c | 112 ++++++++++++++++++++++++---- > fs/nfsd/netns.h | 3 + > fs/nfsd/nfs4state.c | 197 ++++++++++++++++++++++++++++++------------------- > fs/nfsd/state.h | 18 +++-- > 4 files changed, 237 insertions(+), 93 deletions(-) > > -- > 1.8.0.1 > -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
