linux/fs/bcachefs/sb-counters.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _BCACHEFS_SB_COUNTERS_H
#define _BCACHEFS_SB_COUNTERS_H

#include "bcachefs.h"
#include "super-io.h"

int bch2_sb_counters_to_cpu(struct bch_fs *);
int bch2_sb_counters_from_cpu(struct bch_fs *);

void bch2_fs_counters_exit(struct bch_fs *);
int bch2_fs_counters_init(struct bch_fs *);

extern const char * const bch2_counter_names[];
extern const struct bch_sb_field_ops bch_sb_field_ops_counters;

long bch2_ioctl_query_counters(struct bch_fs *,
			struct bch_ioctl_query_counters __user *);

#endif // _BCACHEFS_SB_COUNTERS_H
bcachefs: Add persistent counters This adds a new superblock field for persisting counters and adds a sysfs interface in counters/ exposing these counters. The superblock field is ignored by older versions letting us avoid an on disk version bump. Each sysfs file outputs a counter that tracks since filesystem creation and a counter for the current mount session. Signed-off-by: Daniel Hill <daniel@gluo.nz> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> 2022-03-15 21:36:33 +13:00			`/* SPDX-License-Identifier: GPL-2.0 */`
bcachefs: counters.c -> sb-counters.c Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> 2024-01-20 23:46:35 -05:00			`#ifndef _BCACHEFS_SB_COUNTERS_H`
			`#define _BCACHEFS_SB_COUNTERS_H`
bcachefs: Add persistent counters This adds a new superblock field for persisting counters and adds a sysfs interface in counters/ exposing these counters. The superblock field is ignored by older versions letting us avoid an on disk version bump. Each sysfs file outputs a counter that tracks since filesystem creation and a counter for the current mount session. Signed-off-by: Daniel Hill <daniel@gluo.nz> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> 2022-03-15 21:36:33 +13:00
			`#include "bcachefs.h"`
			`#include "super-io.h"`

			`int bch2_sb_counters_to_cpu(struct bch_fs *);`
			`int bch2_sb_counters_from_cpu(struct bch_fs *);`

			`void bch2_fs_counters_exit(struct bch_fs *);`
			`int bch2_fs_counters_init(struct bch_fs *);`

bcachefs: BCH_IOCTL_QUERY_COUNTERS Add an ioctl for querying counters, the same ones provided in /sys/fs/bcachefs/<uuid>/counters/, but more suitable for a 'bcachefs top' command. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> 2025-01-26 22:05:02 -05:00			`extern const char * const bch2_counter_names[];`
bcachefs: Add persistent counters This adds a new superblock field for persisting counters and adds a sysfs interface in counters/ exposing these counters. The superblock field is ignored by older versions letting us avoid an on disk version bump. Each sysfs file outputs a counter that tracks since filesystem creation and a counter for the current mount session. Signed-off-by: Daniel Hill <daniel@gluo.nz> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> 2022-03-15 21:36:33 +13:00			`extern const struct bch_sb_field_ops bch_sb_field_ops_counters;`

bcachefs: BCH_IOCTL_QUERY_COUNTERS Add an ioctl for querying counters, the same ones provided in /sys/fs/bcachefs/<uuid>/counters/, but more suitable for a 'bcachefs top' command. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> 2025-01-26 22:05:02 -05:00			`long bch2_ioctl_query_counters(struct bch_fs *,`
			`struct bch_ioctl_query_counters __user *);`

bcachefs: counters.c -> sb-counters.c Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> 2024-01-20 23:46:35 -05:00			`#endif // _BCACHEFS_SB_COUNTERS_H`