diff options
Diffstat (limited to 'fs/aufs/opts.h')
| -rw-r--r-- | fs/aufs/opts.h | 210 |
1 files changed, 0 insertions, 210 deletions
diff --git a/fs/aufs/opts.h b/fs/aufs/opts.h deleted file mode 100644 index b18a4aa00..000000000 --- a/fs/aufs/opts.h +++ /dev/null @@ -1,210 +0,0 @@ -/* - * Copyright (C) 2005-2015 Junjiro R. Okajima - * - * This program, aufs is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ - -/* - * mount options/flags - */ - -#ifndef __AUFS_OPTS_H__ -#define __AUFS_OPTS_H__ - -#ifdef __KERNEL__ - -#include <linux/path.h> - -struct file; -struct super_block; - -/* ---------------------------------------------------------------------- */ - -/* mount flags */ -#define AuOpt_XINO 1 /* external inode number bitmap - and translation table */ -#define AuOpt_TRUNC_XINO (1 << 1) /* truncate xino files */ -#define AuOpt_UDBA_NONE (1 << 2) /* users direct branch access */ -#define AuOpt_UDBA_REVAL (1 << 3) -#define AuOpt_UDBA_HNOTIFY (1 << 4) -#define AuOpt_SHWH (1 << 5) /* show whiteout */ -#define AuOpt_PLINK (1 << 6) /* pseudo-link */ -#define AuOpt_DIRPERM1 (1 << 7) /* ignore the lower dir's perm - bits */ -#define AuOpt_ALWAYS_DIROPQ (1 << 9) /* policy to creating diropq */ -#define AuOpt_SUM (1 << 10) /* summation for statfs(2) */ -#define AuOpt_SUM_W (1 << 11) /* unimplemented */ -#define AuOpt_WARN_PERM (1 << 12) /* warn when add-branch */ -#define AuOpt_VERBOSE (1 << 13) /* busy inode when del-branch */ -#define AuOpt_DIO (1 << 14) /* direct io */ - -#ifndef CONFIG_AUFS_HNOTIFY -#undef AuOpt_UDBA_HNOTIFY -#define AuOpt_UDBA_HNOTIFY 0 -#endif -#ifndef CONFIG_AUFS_SHWH -#undef AuOpt_SHWH -#define AuOpt_SHWH 0 -#endif - -#define AuOpt_Def (AuOpt_XINO \ - | AuOpt_UDBA_REVAL \ - | AuOpt_PLINK \ - /* | AuOpt_DIRPERM1 */ \ - | AuOpt_WARN_PERM) -#define AuOptMask_UDBA (AuOpt_UDBA_NONE \ - | AuOpt_UDBA_REVAL \ - | AuOpt_UDBA_HNOTIFY) - -#define au_opt_test(flags, name) (flags & AuOpt_##name) -#define au_opt_set(flags, name) do { \ - BUILD_BUG_ON(AuOpt_##name & AuOptMask_UDBA); \ - ((flags) |= AuOpt_##name); \ -} while (0) -#define au_opt_set_udba(flags, name) do { \ - (flags) &= ~AuOptMask_UDBA; \ - ((flags) |= AuOpt_##name); \ -} while (0) -#define au_opt_clr(flags, name) do { \ - ((flags) &= ~AuOpt_##name); \ -} while (0) - -static inline unsigned int au_opts_plink(unsigned int mntflags) -{ -#ifdef CONFIG_PROC_FS - return mntflags; -#else - return mntflags & ~AuOpt_PLINK; -#endif -} - -/* ---------------------------------------------------------------------- */ - -/* policies to select one among multiple writable branches */ -enum { - AuWbrCreate_TDP, /* top down parent */ - AuWbrCreate_RR, /* round robin */ - AuWbrCreate_MFS, /* most free space */ - AuWbrCreate_MFSV, /* mfs with seconds */ - AuWbrCreate_MFSRR, /* mfs then rr */ - AuWbrCreate_MFSRRV, /* mfs then rr with seconds */ - AuWbrCreate_PMFS, /* parent and mfs */ - AuWbrCreate_PMFSV, /* parent and mfs with seconds */ - AuWbrCreate_PMFSRR, /* parent, mfs and round-robin */ - AuWbrCreate_PMFSRRV, /* plus seconds */ - - AuWbrCreate_Def = AuWbrCreate_TDP -}; - -enum { - AuWbrCopyup_TDP, /* top down parent */ - AuWbrCopyup_BUP, /* bottom up parent */ - AuWbrCopyup_BU, /* bottom up */ - - AuWbrCopyup_Def = AuWbrCopyup_TDP -}; - -/* ---------------------------------------------------------------------- */ - -struct au_opt_add { - aufs_bindex_t bindex; - char *pathname; - int perm; - struct path path; -}; - -struct au_opt_del { - char *pathname; - struct path h_path; -}; - -struct au_opt_mod { - char *path; - int perm; - struct dentry *h_root; -}; - -struct au_opt_xino { - char *path; - struct file *file; -}; - -struct au_opt_xino_itrunc { - aufs_bindex_t bindex; -}; - -struct au_opt_wbr_create { - int wbr_create; - int mfs_second; - unsigned long long mfsrr_watermark; -}; - -struct au_opt { - int type; - union { - struct au_opt_xino xino; - struct au_opt_xino_itrunc xino_itrunc; - struct au_opt_add add; - struct au_opt_del del; - struct au_opt_mod mod; - int dirwh; - int rdcache; - unsigned int rdblk; - unsigned int rdhash; - int udba; - struct au_opt_wbr_create wbr_create; - int wbr_copyup; - unsigned int fhsm_second; - }; -}; - -/* opts flags */ -#define AuOpts_REMOUNT 1 -#define AuOpts_REFRESH (1 << 1) -#define AuOpts_TRUNC_XIB (1 << 2) -#define AuOpts_REFRESH_DYAOP (1 << 3) -#define au_ftest_opts(flags, name) ((flags) & AuOpts_##name) -#define au_fset_opts(flags, name) \ - do { (flags) |= AuOpts_##name; } while (0) -#define au_fclr_opts(flags, name) \ - do { (flags) &= ~AuOpts_##name; } while (0) - -struct au_opts { - struct au_opt *opt; - int max_opt; - - unsigned int given_udba; - unsigned int flags; - unsigned long sb_flags; -}; - -/* ---------------------------------------------------------------------- */ - -/* opts.c */ -void au_optstr_br_perm(au_br_perm_str_t *str, int perm); -const char *au_optstr_udba(int udba); -const char *au_optstr_wbr_copyup(int wbr_copyup); -const char *au_optstr_wbr_create(int wbr_create); - -void au_opts_free(struct au_opts *opts); -int au_opts_parse(struct super_block *sb, char *str, struct au_opts *opts); -int au_opts_verify(struct super_block *sb, unsigned long sb_flags, - unsigned int pending); -int au_opts_mount(struct super_block *sb, struct au_opts *opts); -int au_opts_remount(struct super_block *sb, struct au_opts *opts); - -unsigned int au_opt_udba(struct super_block *sb); - -#endif /* __KERNEL__ */ -#endif /* __AUFS_OPTS_H__ */ |