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| author |   Marc Eshel <eshel@almaden.ibm.com> | 2011-05-22 19:47:09 +0300 |
|---|---|---|
| committer |   Boaz Harrosh <bharrosh@panasas.com> | 2011-05-29 20:52:31 +0300 |
| commit | 1be5683b03a766670b3b629bf6bfeab3ca9239d8 (patch) | |
| tree | 613f4c0dea8b0d8447a3158b82b3e2046ee9dcb5 /fs/nfs/callback.h | |
| parent | NFSv4.1: purge deviceid cache on nfs_free_client (diff) | |
| download | linux-dev-1be5683b03a766670b3b629bf6bfeab3ca9239d8.tar.xz linux-dev-1be5683b03a766670b3b629bf6bfeab3ca9239d8.zip | |
pnfs: CB_NOTIFY_DEVICEID
Note: This functionlaity is incomplete as all layout segments referring to
the 'to be removed device id' need to be reaped, and all in flight I/O drained.
[use be32 res in nfs4_callback_devicenotify]
[use nfs_client to qualify deviceid for cb_notify_deviceid]
[use global deviceid cache for CB_NOTIFY_DEVICEID]
[refactor device cache _lookup_deviceid]
[refactor device cache _find_get_deviceid]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
[Bug in new global-device-cache code]
[layout_driver MUST set free_deviceid_node if using dev-cache]
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Diffstat (limited to 'fs/nfs/callback.h')
| -rw-r--r-- | fs/nfs/callback.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/fs/nfs/callback.h b/fs/nfs/callback.h index 46d93ce7311b..b257383bb565 100644 --- a/fs/nfs/callback.h +++ b/fs/nfs/callback.h @@ -167,6 +167,23 @@ extern unsigned nfs4_callback_layoutrecall( extern void nfs4_check_drain_bc_complete(struct nfs4_session *ses); extern void nfs4_cb_take_slot(struct nfs_client *clp); + +struct cb_devicenotifyitem { + uint32_t cbd_notify_type; + uint32_t cbd_layout_type; + struct nfs4_deviceid cbd_dev_id; + uint32_t cbd_immediate; +}; + +struct cb_devicenotifyargs { + int ndevs; + struct cb_devicenotifyitem *devs; +}; + +extern __be32 nfs4_callback_devicenotify( + struct cb_devicenotifyargs *args, + void *dummy, struct cb_process_state *cps); + #endif /* CONFIG_NFS_V4_1 */ extern int check_gss_callback_principal(struct nfs_client *, struct svc_rqst *); extern __be32 nfs4_callback_getattr(struct cb_getattrargs *args, |