summaryrefslogtreecommitdiff
path: root/fs/afs/internal.h
diff options
context:
space:
mode:
Diffstat (limited to 'fs/afs/internal.h')
-rw-r--r--fs/afs/internal.h136
1 files changed, 101 insertions, 35 deletions
diff --git a/fs/afs/internal.h b/fs/afs/internal.h
index d9760b2a8d8d..df30bd62da79 100644
--- a/fs/afs/internal.h
+++ b/fs/afs/internal.h
@@ -163,6 +163,7 @@ struct afs_call {
spinlock_t state_lock;
int error; /* error code */
u32 abort_code; /* Remote abort ID or 0 */
+ unsigned long long remaining; /* How much is left to receive */
unsigned int max_lifespan; /* Maximum lifespan in secs to set if not 0 */
unsigned request_size; /* size of request data */
unsigned reply_max; /* maximum size of reply */
@@ -201,11 +202,17 @@ struct afs_call_type {
/* clean up a call */
void (*destructor)(struct afs_call *call);
+ /* Async receive processing function */
+ void (*async_rx)(struct work_struct *work);
+
/* Work function */
void (*work)(struct work_struct *work);
/* Call done function (gets called immediately on success or failure) */
void (*done)(struct afs_call *call);
+
+ /* Handle a call being immediately cancelled. */
+ void (*immediate_cancel)(struct afs_call *call);
};
/*
@@ -233,28 +240,6 @@ static inline struct key *afs_file_key(struct file *file)
}
/*
- * Record of an outstanding read operation on a vnode.
- */
-struct afs_read {
- loff_t pos; /* Where to start reading */
- loff_t len; /* How much we're asking for */
- loff_t actual_len; /* How much we're actually getting */
- loff_t file_size; /* File size returned by server */
- struct key *key; /* The key to use to reissue the read */
- struct afs_vnode *vnode; /* The file being read into. */
- struct netfs_io_subrequest *subreq; /* Fscache helper read request this belongs to */
- afs_dataversion_t data_version; /* Version number returned by server */
- refcount_t usage;
- unsigned int call_debug_id;
- unsigned int nr_pages;
- int error;
- void (*done)(struct afs_read *);
- void (*cleanup)(struct afs_read *);
- struct iov_iter *iter; /* Iterator representing the buffer */
- struct iov_iter def_iter; /* Default iterator */
-};
-
-/*
* AFS superblock private data
* - there's one superblock per volume
*/
@@ -302,7 +287,7 @@ struct afs_net {
/* Cell database */
struct rb_root cells;
- struct afs_cell *ws_cell;
+ struct afs_cell __rcu *ws_cell;
struct work_struct cells_manager;
struct timer_list cells_timer;
atomic_t cells_outstanding;
@@ -702,13 +687,14 @@ struct afs_vnode {
struct afs_file_status status; /* AFS status info for this file */
afs_dataversion_t invalid_before; /* Child dentries are invalid before this */
struct afs_permits __rcu *permit_cache; /* cache of permits so far obtained */
- struct mutex io_lock; /* Lock for serialising I/O on this mutex */
+ struct list_head io_lock_waiters; /* Threads waiting for the I/O lock */
struct rw_semaphore validate_lock; /* lock for validating this vnode */
struct rw_semaphore rmdir_lock; /* Lock for rmdir vs sillyrename */
struct key *silly_key; /* Silly rename key */
spinlock_t wb_lock; /* lock for wb_keys */
spinlock_t lock; /* waitqueue/flags lock */
unsigned long flags;
+#define AFS_VNODE_IO_LOCK 0 /* Set if the I/O serialisation lock is held */
#define AFS_VNODE_UNSET 1 /* set if vnode attributes not yet set */
#define AFS_VNODE_DIR_VALID 2 /* Set if dir contents are valid */
#define AFS_VNODE_ZAP_DATA 3 /* set if vnode's data should be invalidated */
@@ -719,7 +705,9 @@ struct afs_vnode {
#define AFS_VNODE_NEW_CONTENT 8 /* Set if file has new content (create/trunc-0) */
#define AFS_VNODE_SILLY_DELETED 9 /* Set if file has been silly-deleted */
#define AFS_VNODE_MODIFYING 10 /* Set if we're performing a modification op */
+#define AFS_VNODE_DIR_READ 11 /* Set if we've read a dir's contents */
+ struct folio_queue *directory; /* Directory contents */
struct list_head wb_keys; /* List of keys available for writeback */
struct list_head pending_locks; /* locks waiting to be granted */
struct list_head granted_locks; /* locks granted on this file */
@@ -728,6 +716,7 @@ struct afs_vnode {
ktime_t locked_at; /* Time at which lock obtained */
enum afs_lock_state lock_state : 8;
afs_lock_type_t lock_type : 8;
+ unsigned int directory_size; /* Amount of space in ->directory */
/* outstanding callback notification on this file */
struct work_struct cb_work; /* Work for mmap'd files */
@@ -907,7 +896,7 @@ struct afs_operation {
bool new_negative;
} rename;
struct {
- struct afs_read *req;
+ struct netfs_io_subrequest *subreq;
} fetch;
struct {
afs_lock_type_t type;
@@ -959,6 +948,7 @@ struct afs_operation {
#define AFS_OPERATION_TRIED_ALL 0x0400 /* Set if we've tried all the fileservers */
#define AFS_OPERATION_RETRY_SERVER 0x0800 /* Set if we should retry the current server */
#define AFS_OPERATION_DIR_CONFLICT 0x1000 /* Set if we detected a 3rd-party dir change */
+#define AFS_OPERATION_ASYNC 0x2000 /* Set if should run asynchronously */
};
/*
@@ -983,6 +973,21 @@ static inline void afs_invalidate_cache(struct afs_vnode *vnode, unsigned int fl
i_size_read(&vnode->netfs.inode), flags);
}
+/*
+ * Directory iteration management.
+ */
+struct afs_dir_iter {
+ struct afs_vnode *dvnode;
+ union afs_xdr_dir_block *block;
+ struct folio_queue *fq;
+ unsigned int fpos;
+ int fq_slot;
+ unsigned int loop_check;
+ u8 nr_slots;
+ u8 bucket;
+ unsigned int prev_entry;
+};
+
#include <trace/events/afs.h>
/*****************************************************************************/
@@ -1064,8 +1069,13 @@ extern const struct inode_operations afs_dir_inode_operations;
extern const struct address_space_operations afs_dir_aops;
extern const struct dentry_operations afs_fs_dentry_operations;
+ssize_t afs_read_single(struct afs_vnode *dvnode, struct file *file);
+ssize_t afs_read_dir(struct afs_vnode *dvnode, struct file *file)
+ __acquires(&dvnode->validate_lock);
extern void afs_d_release(struct dentry *);
extern void afs_check_for_remote_deletion(struct afs_operation *);
+int afs_single_writepages(struct address_space *mapping,
+ struct writeback_control *wbc);
/*
* dir_edit.c
@@ -1075,6 +1085,18 @@ extern void afs_edit_dir_add(struct afs_vnode *, struct qstr *, struct afs_fid *
extern void afs_edit_dir_remove(struct afs_vnode *, struct qstr *, enum afs_edit_dir_reason);
void afs_edit_dir_update_dotdot(struct afs_vnode *vnode, struct afs_vnode *new_dvnode,
enum afs_edit_dir_reason why);
+void afs_mkdir_init_dir(struct afs_vnode *dvnode, struct afs_vnode *parent_vnode);
+
+/*
+ * dir_search.c
+ */
+unsigned int afs_dir_hash_name(const struct qstr *name);
+bool afs_dir_init_iter(struct afs_dir_iter *iter, const struct qstr *name);
+union afs_xdr_dir_block *afs_dir_find_block(struct afs_dir_iter *iter, size_t block);
+int afs_dir_search_bucket(struct afs_dir_iter *iter, const struct qstr *name,
+ struct afs_fid *_fid);
+int afs_dir_search(struct afs_vnode *dvnode, struct qstr *name,
+ struct afs_fid *_fid, afs_dataversion_t *_dir_version);
/*
* dir_silly.c
@@ -1099,24 +1121,17 @@ extern void afs_dynroot_depopulate(struct super_block *);
* file.c
*/
extern const struct address_space_operations afs_file_aops;
-extern const struct address_space_operations afs_symlink_aops;
extern const struct inode_operations afs_file_inode_operations;
extern const struct file_operations afs_file_operations;
+extern const struct afs_operation_ops afs_fetch_data_operation;
extern const struct netfs_request_ops afs_req_ops;
extern int afs_cache_wb_key(struct afs_vnode *, struct afs_file *);
extern void afs_put_wb_key(struct afs_wb_key *);
extern int afs_open(struct inode *, struct file *);
extern int afs_release(struct inode *, struct file *);
-extern int afs_fetch_data(struct afs_vnode *, struct afs_read *);
-extern struct afs_read *afs_alloc_read(gfp_t);
-extern void afs_put_read(struct afs_read *);
-
-static inline struct afs_read *afs_get_read(struct afs_read *req)
-{
- refcount_inc(&req->usage);
- return req;
-}
+void afs_fetch_data_async_rx(struct work_struct *work);
+void afs_fetch_data_immediate_cancel(struct afs_call *call);
/*
* flock.c
@@ -1168,6 +1183,7 @@ extern void afs_fs_store_acl(struct afs_operation *);
extern struct afs_operation *afs_alloc_operation(struct key *, struct afs_volume *);
extern int afs_put_operation(struct afs_operation *);
extern bool afs_begin_vnode_operation(struct afs_operation *);
+extern void afs_end_vnode_operation(struct afs_operation *op);
extern void afs_wait_for_operation(struct afs_operation *);
extern int afs_do_sync_operation(struct afs_operation *);
@@ -1205,6 +1221,10 @@ extern void afs_fs_probe_cleanup(struct afs_net *);
*/
extern const struct afs_operation_ops afs_fetch_status_operation;
+void afs_init_new_symlink(struct afs_vnode *vnode, struct afs_operation *op);
+const char *afs_get_link(struct dentry *dentry, struct inode *inode,
+ struct delayed_call *callback);
+int afs_readlink(struct dentry *dentry, char __user *buffer, int buflen);
extern void afs_vnode_commit_status(struct afs_operation *, struct afs_vnode_param *);
extern int afs_fetch_status(struct afs_vnode *, struct key *, bool, afs_access_t *);
extern int afs_ilookup5_test_by_fid(struct inode *, void *);
@@ -1336,6 +1356,7 @@ extern void afs_charge_preallocation(struct work_struct *);
extern void afs_put_call(struct afs_call *);
void afs_deferred_put_call(struct afs_call *call);
void afs_make_call(struct afs_call *call, gfp_t gfp);
+void afs_deliver_to_call(struct afs_call *call);
void afs_wait_for_call_to_complete(struct afs_call *call);
extern struct afs_call *afs_alloc_flat_call(struct afs_net *,
const struct afs_call_type *,
@@ -1346,6 +1367,19 @@ extern void afs_send_simple_reply(struct afs_call *, const void *, size_t);
extern int afs_extract_data(struct afs_call *, bool);
extern int afs_protocol_error(struct afs_call *, enum afs_eproto_cause);
+static inline struct afs_call *afs_get_call(struct afs_call *call,
+ enum afs_call_trace why)
+{
+ int r;
+
+ __refcount_inc(&call->ref, &r);
+
+ trace_afs_call(call->debug_id, why, r + 1,
+ atomic_read(&call->net->nr_outstanding_calls),
+ __builtin_return_address(0));
+ return call;
+}
+
static inline void afs_see_call(struct afs_call *call, enum afs_call_trace why)
{
int r = refcount_read(&call->ref);
@@ -1721,6 +1755,38 @@ static inline int afs_bad(struct afs_vnode *vnode, enum afs_file_error where)
return -EIO;
}
+/*
+ * Set the callback promise on a vnode.
+ */
+static inline void afs_set_cb_promise(struct afs_vnode *vnode, time64_t expires_at,
+ enum afs_cb_promise_trace trace)
+{
+ atomic64_set(&vnode->cb_expires_at, expires_at);
+ trace_afs_cb_promise(vnode, trace);
+}
+
+/*
+ * Clear the callback promise on a vnode, returning true if it was promised.
+ */
+static inline bool afs_clear_cb_promise(struct afs_vnode *vnode,
+ enum afs_cb_promise_trace trace)
+{
+ trace_afs_cb_promise(vnode, trace);
+ return atomic64_xchg(&vnode->cb_expires_at, AFS_NO_CB_PROMISE) != AFS_NO_CB_PROMISE;
+}
+
+/*
+ * Mark a directory as being invalid.
+ */
+static inline void afs_invalidate_dir(struct afs_vnode *dvnode,
+ enum afs_dir_invalid_trace trace)
+{
+ if (test_and_clear_bit(AFS_VNODE_DIR_VALID, &dvnode->flags)) {
+ trace_afs_dir_invalid(dvnode, trace);
+ afs_stat_v(dvnode, n_inval);
+ }
+}
+
/*****************************************************************************/
/*
* debug tracing
generated by cgit v1.2.3 (git 2.39.0) at 2025-04-30 11:35:47 +0300