^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0+ */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * sufile.h - NILFS segment usage file.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Written by Koji Sato.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #ifndef _NILFS_SUFILE_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #define _NILFS_SUFILE_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/buffer_head.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include "mdt.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) static inline unsigned long nilfs_sufile_get_nsegments(struct inode *sufile)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) return ((struct the_nilfs *)sufile->i_sb->s_fs_info)->ns_nsegments;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) unsigned long nilfs_sufile_get_ncleansegs(struct inode *sufile);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) int nilfs_sufile_set_alloc_range(struct inode *sufile, __u64 start, __u64 end);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) int nilfs_sufile_alloc(struct inode *, __u64 *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) int nilfs_sufile_mark_dirty(struct inode *sufile, __u64 segnum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) int nilfs_sufile_set_segment_usage(struct inode *sufile, __u64 segnum,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) unsigned long nblocks, time64_t modtime);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) int nilfs_sufile_get_stat(struct inode *, struct nilfs_sustat *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) ssize_t nilfs_sufile_get_suinfo(struct inode *, __u64, void *, unsigned int,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) size_t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) ssize_t nilfs_sufile_set_suinfo(struct inode *, void *, unsigned int, size_t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) int nilfs_sufile_updatev(struct inode *, __u64 *, size_t, int, size_t *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) void (*dofunc)(struct inode *, __u64,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) struct buffer_head *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) struct buffer_head *));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) int nilfs_sufile_update(struct inode *, __u64, int,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) void (*dofunc)(struct inode *, __u64,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) struct buffer_head *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) struct buffer_head *));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) void nilfs_sufile_do_scrap(struct inode *, __u64, struct buffer_head *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) struct buffer_head *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) void nilfs_sufile_do_free(struct inode *, __u64, struct buffer_head *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) struct buffer_head *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) void nilfs_sufile_do_cancel_free(struct inode *, __u64, struct buffer_head *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) struct buffer_head *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) void nilfs_sufile_do_set_error(struct inode *, __u64, struct buffer_head *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) struct buffer_head *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) int nilfs_sufile_resize(struct inode *sufile, __u64 newnsegs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) int nilfs_sufile_read(struct super_block *sb, size_t susize,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) struct nilfs_inode *raw_inode, struct inode **inodep);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) int nilfs_sufile_trim_fs(struct inode *sufile, struct fstrim_range *range);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) * nilfs_sufile_scrap - make a segment garbage
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) * @sufile: inode of segment usage file
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) * @segnum: segment number to be freed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) static inline int nilfs_sufile_scrap(struct inode *sufile, __u64 segnum)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) return nilfs_sufile_update(sufile, segnum, 1, nilfs_sufile_do_scrap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) * nilfs_sufile_free - free segment
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) * @sufile: inode of segment usage file
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) * @segnum: segment number to be freed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) static inline int nilfs_sufile_free(struct inode *sufile, __u64 segnum)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) return nilfs_sufile_update(sufile, segnum, 0, nilfs_sufile_do_free);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) * nilfs_sufile_freev - free segments
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) * @sufile: inode of segment usage file
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) * @segnumv: array of segment numbers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) * @nsegs: size of @segnumv array
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) * @ndone: place to store the number of freed segments
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) static inline int nilfs_sufile_freev(struct inode *sufile, __u64 *segnumv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) size_t nsegs, size_t *ndone)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) return nilfs_sufile_updatev(sufile, segnumv, nsegs, 0, ndone,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) nilfs_sufile_do_free);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) * nilfs_sufile_cancel_freev - reallocate freeing segments
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) * @sufile: inode of segment usage file
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) * @segnumv: array of segment numbers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) * @nsegs: size of @segnumv array
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) * @ndone: place to store the number of cancelled segments
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) * Return Value: On success, 0 is returned. On error, a negative error codes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) * is returned.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) static inline int nilfs_sufile_cancel_freev(struct inode *sufile,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) __u64 *segnumv, size_t nsegs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) size_t *ndone)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) return nilfs_sufile_updatev(sufile, segnumv, nsegs, 0, ndone,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) nilfs_sufile_do_cancel_free);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) * nilfs_sufile_set_error - mark a segment as erroneous
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) * @sufile: inode of segment usage file
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) * @segnum: segment number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) * Description: nilfs_sufile_set_error() marks the segment specified by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) * @segnum as erroneous. The error segment will never be used again.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) * Return Value: On success, 0 is returned. On error, one of the following
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) * negative error codes is returned.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) * %-EIO - I/O error.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) * %-ENOMEM - Insufficient amount of memory available.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) * %-EINVAL - Invalid segment usage number.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) static inline int nilfs_sufile_set_error(struct inode *sufile, __u64 segnum)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) return nilfs_sufile_update(sufile, segnum, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) nilfs_sufile_do_set_error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) #endif /* _NILFS_SUFILE_H */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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