xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

NFSv4.1: purge deviceid cache on nfs_free_client

Browse Source 
Use the pnfs_layoutdriver_type both as a qualifier for the deviceid,
distinguishing deviceid from different layout types on the server,
and for freeing the layout-driver allocated structure containing the
nfs4_deviceid_node.

[BUG in _deviceid_purge_client]
[layout_driver MUST set free_deviceid_node if using dev-cache]
[let ver < 4.1 compile]
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
[removed EXPORT_SYMBOL_GPL(nfs4_deviceid_purge_client)]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
This commit is contained in:
Benny Halevy
2011-05-20 13:47:33 +02:00
committed by Boaz Harrosh
parent a1eaecbc4c
commit 1775bc342c
6 changed files with 70 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
fs/nfs/pnfs.h
View File

@@ -65,6 +65,8 @@ enum {
NFS_LAYOUT_DESTROYED, /* no new use of layout allowed */
};
struct nfs4_deviceid_node;
/* Per-layout driver specific registration structure */
struct pnfs_layoutdriver_type {
struct list_head pnfs_tblid;
@@ -90,6 +92,8 @@ struct pnfs_layoutdriver_type {
*/
enum pnfs_try_status (*read_pagelist) (struct nfs_read_data *nfs_data);
enum pnfs_try_status (*write_pagelist) (struct nfs_write_data *nfs_data, int how);
void (*free_deviceid_node) (struct nfs4_deviceid_node *);
};
struct pnfs_layout_hdr {
@@ -160,6 +164,7 @@ int pnfs_layoutcommit_inode(struct inode *inode, bool sync);
/* pnfs_dev.c */
struct nfs4_deviceid_node {
struct hlist_node node;
const struct pnfs_layoutdriver_type *ld;
const struct nfs_client *nfs_client;
struct nfs4_deviceid deviceid;
atomic_t ref;
@@ -169,10 +174,12 @@ void nfs4_print_deviceid(const struct nfs4_deviceid *dev_id);
struct nfs4_deviceid_node *nfs4_find_get_deviceid(const struct nfs_client *, const struct nfs4_deviceid *);
struct nfs4_deviceid_node *nfs4_unhash_put_deviceid(const struct nfs_client *, const struct nfs4_deviceid *);
void nfs4_init_deviceid_node(struct nfs4_deviceid_node *,
const struct pnfs_layoutdriver_type *,
const struct nfs_client *,
const struct nfs4_deviceid *);
struct nfs4_deviceid_node *nfs4_insert_deviceid_node(struct nfs4_deviceid_node *);
bool nfs4_put_deviceid_node(struct nfs4_deviceid_node *);
void nfs4_deviceid_purge_client(const struct nfs_client *);
static inline int lo_fail_bit(u32 iomode)
{
@@ -349,6 +356,10 @@ static inline int pnfs_layoutcommit_inode(struct inode *inode, bool sync)
{
return 0;
}
static inline void nfs4_deviceid_purge_client(struct nfs_client *ncl)
{
}
#endif /* CONFIG_NFS_V4_1 */
#endif /* FS_NFS_PNFS_H */