diff options
Diffstat (limited to 'fs/fuse/fuse_i.h')
| -rw-r--r-- | fs/fuse/fuse_i.h | 47 |
1 files changed, 45 insertions, 2 deletions
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h index fee96fe7887b..d56d4fd956db 100644 --- a/fs/fuse/fuse_i.h +++ b/fs/fuse/fuse_i.h @@ -38,14 +38,34 @@ /** Bias for fi->writectr, meaning new writepages must not be sent */ #define FUSE_NOWRITE INT_MIN -/** It could be as large as PATH_MAX, but would that have any uses? */ -#define FUSE_NAME_MAX 1024 +/** Maximum length of a filename, not including terminating null */ + +/* maximum, small enough for FUSE_MIN_READ_BUFFER*/ +#define FUSE_NAME_LOW_MAX 1024 +/* maximum, but needs a request buffer > FUSE_MIN_READ_BUFFER */ +#define FUSE_NAME_MAX (PATH_MAX - 1) /** Number of dentries for each connection in the control filesystem */ #define FUSE_CTL_NUM_DENTRIES 5 +/* Frequency (in seconds) of request timeout checks, if opted into */ +#define FUSE_TIMEOUT_TIMER_FREQ 15 + +/** Frequency (in jiffies) of request timeout checks, if opted into */ +extern const unsigned long fuse_timeout_timer_freq; + /** Maximum of max_pages received in init_out */ extern unsigned int fuse_max_pages_limit; +/* + * Default timeout (in seconds) for the server to reply to a request + * before the connection is aborted, if no timeout was specified on mount. + */ +extern unsigned int fuse_default_req_timeout; +/* + * Max timeout (in seconds) for the server to reply to a request before + * the connection is aborted. + */ +extern unsigned int fuse_max_req_timeout; /** List of active connections */ extern struct list_head fuse_conn_list; @@ -378,6 +398,7 @@ struct fuse_io_priv { * FR_FINISHED: request is finished * FR_PRIVATE: request is on private list * FR_ASYNC: request is asynchronous + * FR_URING: request is handled through fuse-io-uring */ enum fuse_req_flag { FR_ISREPLY, @@ -392,6 +413,7 @@ enum fuse_req_flag { FR_FINISHED, FR_PRIVATE, FR_ASYNC, + FR_URING, }; /** @@ -441,7 +463,10 @@ struct fuse_req { #ifdef CONFIG_FUSE_IO_URING void *ring_entry; + void *ring_queue; #endif + /** When (in jiffies) the request was created */ + unsigned long create_time; }; struct fuse_iqueue; @@ -867,6 +892,9 @@ struct fuse_conn { /* Use pages instead of pointer for kernel I/O */ unsigned int use_pages_for_kvec_io:1; + /* Is link not implemented by fs? */ + unsigned int no_link:1; + /* Use io_uring for communication */ unsigned int io_uring; @@ -900,6 +928,9 @@ struct fuse_conn { /** Version counter for evict inode */ atomic64_t evict_ctr; + /* maximum file name length */ + u32 name_max; + /** Called on final put */ void (*release)(struct fuse_conn *); @@ -935,6 +966,15 @@ struct fuse_conn { /** uring connection information*/ struct fuse_ring *ring; #endif + + /** Only used if the connection opts into request timeouts */ + struct { + /* Worker for checking if any requests have timed out */ + struct delayed_work work; + + /* Request timeout (in jiffies). 0 = no timeout */ + unsigned int req_timeout; + } timeout; }; /* @@ -1216,6 +1256,9 @@ void fuse_request_end(struct fuse_req *req); void fuse_abort_conn(struct fuse_conn *fc); void fuse_wait_aborted(struct fuse_conn *fc); +/* Check if any requests timed out */ +void fuse_check_timeout(struct work_struct *work); + /** * Invalidate inode attributes */ |