cleaner.h revision 1.9
1 1.1 perseant #ifndef CLEANER_H_ 2 1.1 perseant #define CLEANER_H_ 3 1.1 perseant 4 1.1 perseant /* 5 1.1 perseant * An abbreviated version of the SEGUSE data structure. 6 1.1 perseant */ 7 1.1 perseant struct clfs_seguse { 8 1.1 perseant u_int32_t nbytes; 9 1.1 perseant u_int32_t nsums; 10 1.1 perseant u_int32_t flags; 11 1.1 perseant u_int64_t lastmod; 12 1.1 perseant u_int64_t priority; 13 1.1 perseant }; 14 1.1 perseant 15 1.1 perseant /* 16 1.1 perseant * The cleaner's view of the superblock data structure. 17 1.1 perseant */ 18 1.1 perseant struct clfs { 19 1.6 dholland struct dlfs lfs_dlfs; 20 1.1 perseant 21 1.1 perseant /* Ifile */ 22 1.1 perseant int clfs_ifilefd; /* Ifile file descriptor */ 23 1.1 perseant struct uvnode *lfs_ivnode; /* Ifile vnode */ 24 1.4 martin struct lfs_fhandle clfs_ifilefh; /* Ifile file handle */ 25 1.1 perseant 26 1.1 perseant /* Device */ 27 1.1 perseant int clfs_devfd; /* Device file descriptor */ 28 1.1 perseant struct uvnode *clfs_devvp; /* Device vnode */ 29 1.1 perseant char *clfs_dev; /* Name of device */ 30 1.1 perseant 31 1.1 perseant /* Cache of segment status */ 32 1.1 perseant struct clfs_seguse *clfs_segtab; /* Abbreviated seguse table */ 33 1.1 perseant struct clfs_seguse **clfs_segtabp; /* pointers to same */ 34 1.1 perseant 35 1.1 perseant /* Progress status */ 36 1.1 perseant int clfs_nactive; /* How many segments' blocks we have */ 37 1.1 perseant int clfs_onhold; /* If cleaning this fs is on hold */ 38 1.1 perseant }; 39 1.1 perseant 40 1.1 perseant /* 41 1.9 dholland * Get lfs accessors that use struct clfs. This must come after the 42 1.9 dholland * definition of struct clfs. (blah) 43 1.8 dholland */ 44 1.9 dholland #define STRUCT_LFS struct clfs 45 1.9 dholland #include <ufs/lfs/lfs_accessors.h> 46 1.8 dholland 47 1.8 dholland /* 48 1.1 perseant * Fraction of the could-be-clean segments required to be clean. 49 1.1 perseant */ 50 1.1 perseant #define BUSY_LIM 0.5 51 1.1 perseant #define IDLE_LIM 0.9 52 1.1 perseant 53 1.1 perseant __BEGIN_DECLS 54 1.1 perseant 55 1.1 perseant /* lfs_cleanerd.c */ 56 1.1 perseant void pwarn(const char *, ...); 57 1.1 perseant void calc_cb(struct clfs *, int, struct clfs_seguse *); 58 1.1 perseant int clean_fs(struct clfs *, CLEANERINFO *); 59 1.5 lukem void dlog(const char *, ...); 60 1.1 perseant void handle_error(struct clfs **, int); 61 1.1 perseant int init_fs(struct clfs *, char *); 62 1.1 perseant int invalidate_segment(struct clfs *, int); 63 1.1 perseant void lfs_ientry(IFILE **, struct clfs *, ino_t, struct ubuf **); 64 1.1 perseant int load_segment(struct clfs *, int, BLOCK_INFO **, int *); 65 1.1 perseant int needs_cleaning(struct clfs *, CLEANERINFO *); 66 1.1 perseant int32_t parse_pseg(struct clfs *, daddr_t, BLOCK_INFO **, int *); 67 1.1 perseant int reinit_fs(struct clfs *); 68 1.1 perseant void reload_ifile(struct clfs *); 69 1.2 perseant void toss_old_blocks(struct clfs *, BLOCK_INFO **, int *, int *); 70 1.1 perseant 71 1.1 perseant /* cleansrv.c */ 72 1.1 perseant void check_control_socket(void); 73 1.1 perseant void try_to_become_master(int, char **); 74 1.1 perseant 75 1.1 perseant /* coalesce.c */ 76 1.1 perseant int log2int(int); 77 1.1 perseant int clean_all_inodes(struct clfs *); 78 1.1 perseant int fork_coalesce(struct clfs *); 79 1.1 perseant 80 1.1 perseant __END_DECLS 81 1.1 perseant 82 1.1 perseant #endif /* CLEANER_H_ */ 83
Indexes created Sat Sep 27 14:09:57 GMT 2025