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| author | Ilya Dryomov <idryomov@gmail.com> | 2021-04-27 23:10:58 +0200 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2021-04-27 23:10:58 +0200 |
| commit | 8b018889922581c247373fc1bd28e11a472d3d0f (patch) | |
| tree | 62124f24a00a33251b1fa592ab1c9ff7b8618e9f /fs/netfs/internal.h | |
| parent | 9f4ad9e425a1d3b6a34617b8ea226d56a119a717 (diff) | |
| parent | 53b776c77aca99b663a5512a04abc27670d61058 (diff) | |
Merge remote-tracking branch 'dhowells/netfs-lib'
Pick up David Howells' netfs helper library and the new fscache API.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs/netfs/internal.h')
| -rw-r--r-- | fs/netfs/internal.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/fs/netfs/internal.h b/fs/netfs/internal.h new file mode 100644 index 000000000000..b7f2c4459f33 --- /dev/null +++ b/fs/netfs/internal.h @@ -0,0 +1,97 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* Internal definitions for network filesystem support + * + * Copyright (C) 2021 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + */ + +#ifdef pr_fmt +#undef pr_fmt +#endif + +#define pr_fmt(fmt) "netfs: " fmt + +/* + * read_helper.c + */ +extern unsigned int netfs_debug; + +/* + * stats.c + */ +#ifdef CONFIG_NETFS_STATS +extern atomic_t netfs_n_rh_readahead; +extern atomic_t netfs_n_rh_readpage; +extern atomic_t netfs_n_rh_rreq; +extern atomic_t netfs_n_rh_sreq; +extern atomic_t netfs_n_rh_download; +extern atomic_t netfs_n_rh_download_done; +extern atomic_t netfs_n_rh_download_failed; +extern atomic_t netfs_n_rh_download_instead; +extern atomic_t netfs_n_rh_read; +extern atomic_t netfs_n_rh_read_done; +extern atomic_t netfs_n_rh_read_failed; +extern atomic_t netfs_n_rh_zero; +extern atomic_t netfs_n_rh_short_read; +extern atomic_t netfs_n_rh_write; +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; + + +static inline void netfs_stat(atomic_t *stat) +{ + atomic_inc(stat); +} + +static inline void netfs_stat_d(atomic_t *stat) +{ + atomic_dec(stat); +} + +#else +#define netfs_stat(x) do {} while(0) +#define netfs_stat_d(x) do {} while(0) +#endif + +/*****************************************************************************/ +/* + * debug tracing + */ +#define dbgprintk(FMT, ...) \ + printk("[%-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 |