diff options
Diffstat (limited to 'fs/netfs/internal.h')
| -rw-r--r-- | fs/netfs/internal.h | 97 |
1 files changed, 42 insertions, 55 deletions
diff --git a/fs/netfs/internal.h b/fs/netfs/internal.h index edf9b2a180..21e46bc9aa 100644 --- a/fs/netfs/internal.h +++ b/fs/netfs/internal.h @@ -34,9 +34,10 @@ int netfs_begin_read(struct netfs_io_request *rreq, bool sync); /* * main.c */ -extern unsigned int netfs_debug; extern struct list_head netfs_io_requests; extern spinlock_t netfs_proc_lock; +extern mempool_t netfs_request_pool; +extern mempool_t netfs_subrequest_pool; #ifdef CONFIG_PROC_FS static inline void netfs_proc_add_rreq(struct netfs_io_request *rreq) @@ -61,15 +62,6 @@ static inline void netfs_proc_del_rreq(struct netfs_io_request *rreq) {} /* * misc.c */ -#define NETFS_FLAG_PUT_MARK BIT(0) -#define NETFS_FLAG_PAGECACHE_MARK BIT(1) -int netfs_xa_store_and_mark(struct xarray *xa, unsigned long index, - struct folio *folio, unsigned int flags, - gfp_t gfp_mask); -int netfs_add_folios_to_buffer(struct xarray *buffer, - struct address_space *mapping, - pgoff_t index, pgoff_t to, gfp_t gfp_mask); -void netfs_clear_buffer(struct xarray *buffer); /* * objects.c @@ -91,22 +83,12 @@ static inline void netfs_see_request(struct netfs_io_request *rreq, } /* - * output.c - */ -int netfs_begin_write(struct netfs_io_request *wreq, bool may_wait, - enum netfs_write_trace what); -struct netfs_io_request *netfs_begin_writethrough(struct kiocb *iocb, size_t len); -int netfs_advance_writethrough(struct netfs_io_request *wreq, size_t copied, bool to_page_end); -int netfs_end_writethrough(struct netfs_io_request *wreq, struct kiocb *iocb); - -/* * stats.c */ #ifdef CONFIG_NETFS_STATS extern atomic_t netfs_n_rh_dio_read; -extern atomic_t netfs_n_rh_dio_write; extern atomic_t netfs_n_rh_readahead; -extern atomic_t netfs_n_rh_readpage; +extern atomic_t netfs_n_rh_read_folio; extern atomic_t netfs_n_rh_rreq; extern atomic_t netfs_n_rh_sreq; extern atomic_t netfs_n_rh_download; @@ -123,6 +105,10 @@ extern atomic_t netfs_n_rh_write_begin; extern atomic_t netfs_n_rh_write_done; extern atomic_t netfs_n_rh_write_failed; extern atomic_t netfs_n_rh_write_zskip; +extern atomic_t netfs_n_wh_buffered_write; +extern atomic_t netfs_n_wh_writethrough; +extern atomic_t netfs_n_wh_dio_write; +extern atomic_t netfs_n_wh_writepages; extern atomic_t netfs_n_wh_wstream_conflict; extern atomic_t netfs_n_wh_upload; extern atomic_t netfs_n_wh_upload_done; @@ -149,6 +135,33 @@ static inline void netfs_stat_d(atomic_t *stat) #endif /* + * write_collect.c + */ +int netfs_folio_written_back(struct folio *folio); +void netfs_write_collection_worker(struct work_struct *work); +void netfs_wake_write_collector(struct netfs_io_request *wreq, bool was_async); + +/* + * write_issue.c + */ +struct netfs_io_request *netfs_create_write_req(struct address_space *mapping, + struct file *file, + loff_t start, + enum netfs_io_origin origin); +void netfs_reissue_write(struct netfs_io_stream *stream, + struct netfs_io_subrequest *subreq); +int netfs_advance_write(struct netfs_io_request *wreq, + struct netfs_io_stream *stream, + loff_t start, size_t len, bool to_eof); +struct netfs_io_request *netfs_begin_writethrough(struct kiocb *iocb, size_t len); +int netfs_advance_writethrough(struct netfs_io_request *wreq, struct writeback_control *wbc, + struct folio *folio, size_t copied, bool to_page_end, + struct folio **writethrough_cache); +int netfs_end_writethrough(struct netfs_io_request *wreq, struct writeback_control *wbc, + struct folio *writethrough_cache); +int netfs_unbuffered_write(struct netfs_io_request *wreq, bool may_wait, size_t len); + +/* * Miscellaneous functions. */ static inline bool netfs_is_cache_enabled(struct netfs_inode *ctx) @@ -168,7 +181,7 @@ static inline bool netfs_is_cache_enabled(struct netfs_inode *ctx) */ static inline struct netfs_group *netfs_get_group(struct netfs_group *netfs_group) { - if (netfs_group) + if (netfs_group && netfs_group != NETFS_FOLIO_COPY_TO_CACHE) refcount_inc(&netfs_group->ref); return netfs_group; } @@ -178,7 +191,9 @@ static inline struct netfs_group *netfs_get_group(struct netfs_group *netfs_grou */ static inline void netfs_put_group(struct netfs_group *netfs_group) { - if (netfs_group && refcount_dec_and_test(&netfs_group->ref)) + if (netfs_group && + netfs_group != NETFS_FOLIO_COPY_TO_CACHE && + refcount_dec_and_test(&netfs_group->ref)) netfs_group->free(netfs_group); } @@ -187,7 +202,9 @@ static inline void netfs_put_group(struct netfs_group *netfs_group) */ static inline void netfs_put_group_many(struct netfs_group *netfs_group, int nr) { - if (netfs_group && refcount_sub_and_test(nr, &netfs_group->ref)) + if (netfs_group && + netfs_group != NETFS_FOLIO_COPY_TO_CACHE && + refcount_sub_and_test(nr, &netfs_group->ref)) netfs_group->free(netfs_group); } @@ -336,42 +353,12 @@ void fscache_create_volume(struct fscache_volume *volume, bool wait); * debug tracing */ #define dbgprintk(FMT, ...) \ - printk("[%-6.6s] "FMT"\n", current->comm, ##__VA_ARGS__) + pr_debug("[%-6.6s] "FMT"\n", current->comm, ##__VA_ARGS__) #define kenter(FMT, ...) dbgprintk("==> %s("FMT")", __func__, ##__VA_ARGS__) #define kleave(FMT, ...) dbgprintk("<== %s()"FMT"", __func__, ##__VA_ARGS__) #define kdebug(FMT, ...) dbgprintk(FMT, ##__VA_ARGS__) -#ifdef __KDEBUG -#define _enter(FMT, ...) kenter(FMT, ##__VA_ARGS__) -#define _leave(FMT, ...) kleave(FMT, ##__VA_ARGS__) -#define _debug(FMT, ...) kdebug(FMT, ##__VA_ARGS__) - -#elif defined(CONFIG_NETFS_DEBUG) -#define _enter(FMT, ...) \ -do { \ - if (netfs_debug) \ - kenter(FMT, ##__VA_ARGS__); \ -} while (0) - -#define _leave(FMT, ...) \ -do { \ - if (netfs_debug) \ - kleave(FMT, ##__VA_ARGS__); \ -} while (0) - -#define _debug(FMT, ...) \ -do { \ - if (netfs_debug) \ - kdebug(FMT, ##__VA_ARGS__); \ -} while (0) - -#else -#define _enter(FMT, ...) no_printk("==> %s("FMT")", __func__, ##__VA_ARGS__) -#define _leave(FMT, ...) no_printk("<== %s()"FMT"", __func__, ##__VA_ARGS__) -#define _debug(FMT, ...) no_printk(FMT, ##__VA_ARGS__) -#endif - /* * assertions */ |