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Merge tag 'afs-next-20190628' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs

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Pull afs updates from David Howells:
 "A set of minor changes for AFS:

   - Remove an unnecessary check in afs_unlink()

   - Add a tracepoint for tracking callback management

   - Add a tracepoint for afs_server object usage

   - Use struct_size()

   - Add mappings for AFS UAE abort codes to Linux error codes, using
     symbolic names rather than hex numbers in the .c file"

* tag 'afs-next-20190628' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
  afs: Add support for the UAE error table
  fs/afs: use struct_size() in kzalloc()
  afs: Trace afs_server usage
  afs: Add some callback management tracepoints
  afs: afs_unlink() doesn't need to check dentry->d_inode
This commit is contained in:
Linus Torvalds
2019-07-10 20:55:33 -07:00
parent 25cd6f355d 1eda8bab70
commit 8dda9957e3
14 changed files with 369 additions and 82 deletions
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18
fs/afs/internal.h
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@@ -514,6 +514,7 @@ struct afs_server {
atomic_t usage;
u32 addr_version; /* Address list version */
u32 cm_epoch; /* Server RxRPC epoch */
unsigned int debug_id; /* Debugging ID for traces */
/* file service access */
rwlock_t fs_lock; /* access lock */
@@ -844,9 +845,9 @@ extern struct fscache_cookie_def afs_vnode_cache_index_def;
* callback.c
*/
extern void afs_init_callback_state(struct afs_server *);
extern void __afs_break_callback(struct afs_vnode *);
extern void afs_break_callback(struct afs_vnode *);
extern void afs_break_callbacks(struct afs_server *, size_t, struct afs_callback_break*);
extern void __afs_break_callback(struct afs_vnode *, enum afs_cb_break_reason);
extern void afs_break_callback(struct afs_vnode *, enum afs_cb_break_reason);
extern void afs_break_callbacks(struct afs_server *, size_t, struct afs_callback_break *);
extern int afs_register_server_cb_interest(struct afs_vnode *,
struct afs_server_list *, unsigned int);
@@ -1240,17 +1241,12 @@ extern void __exit afs_clean_up_permit_cache(void);
*/
extern spinlock_t afs_server_peer_lock;
static inline struct afs_server *afs_get_server(struct afs_server *server)
{
atomic_inc(&server->usage);
return server;
}
extern struct afs_server *afs_find_server(struct afs_net *,
const struct sockaddr_rxrpc *);
extern struct afs_server *afs_find_server_by_uuid(struct afs_net *, const uuid_t *);
extern struct afs_server *afs_lookup_server(struct afs_cell *, struct key *, const uuid_t *);
extern void afs_put_server(struct afs_net *, struct afs_server *);
extern struct afs_server *afs_get_server(struct afs_server *, enum afs_server_trace);
extern void afs_put_server(struct afs_net *, struct afs_server *, enum afs_server_trace);
extern void afs_manage_servers(struct work_struct *);
extern void afs_servers_timer(struct timer_list *);
extern void __net_exit afs_purge_servers(struct afs_net *);
@@ -1434,7 +1430,7 @@ static inline void afs_check_for_remote_deletion(struct afs_fs_cursor *fc,
{
if (fc->ac.error == -ENOENT) {
set_bit(AFS_VNODE_DELETED, &vnode->flags);
afs_break_callback(vnode);
afs_break_callback(vnode, afs_cb_break_for_deleted);
}
}