kernel-lts.guncellendi
This commit is contained in:
parent
4e4119e22c
commit
d0b7cf1039
|
|
@ -0,0 +1,419 @@
|
|||
/*
|
||||
* Copyright (C) 2005-2016 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/>.
|
||||
*/
|
||||
|
||||
#ifndef __AUFS_TYPE_H__
|
||||
#define __AUFS_TYPE_H__
|
||||
|
||||
#define AUFS_NAME "aufs"
|
||||
|
||||
#ifdef __KERNEL__
|
||||
/*
|
||||
* define it before including all other headers.
|
||||
* sched.h may use pr_* macros before defining "current", so define the
|
||||
* no-current version first, and re-define later.
|
||||
*/
|
||||
#define pr_fmt(fmt) AUFS_NAME " %s:%d: " fmt, __func__, __LINE__
|
||||
#include <linux/sched.h>
|
||||
#undef pr_fmt
|
||||
#define pr_fmt(fmt) \
|
||||
AUFS_NAME " %s:%d:%.*s[%d]: " fmt, __func__, __LINE__, \
|
||||
(int)sizeof(current->comm), current->comm, current->pid
|
||||
#else
|
||||
#include <stdint.h>
|
||||
#include <sys/types.h>
|
||||
#endif /* __KERNEL__ */
|
||||
|
||||
#include <linux/limits.h>
|
||||
|
||||
#define AUFS_VERSION "4.4-20160912"
|
||||
|
||||
/* todo? move this to linux-2.6.19/include/magic.h */
|
||||
#define AUFS_SUPER_MAGIC ('a' << 24 | 'u' << 16 | 'f' << 8 | 's')
|
||||
|
||||
/* ---------------------------------------------------------------------- */
|
||||
|
||||
#ifdef CONFIG_AUFS_BRANCH_MAX_127
|
||||
typedef int8_t aufs_bindex_t;
|
||||
#define AUFS_BRANCH_MAX 127
|
||||
#else
|
||||
typedef int16_t aufs_bindex_t;
|
||||
#ifdef CONFIG_AUFS_BRANCH_MAX_511
|
||||
#define AUFS_BRANCH_MAX 511
|
||||
#elif defined(CONFIG_AUFS_BRANCH_MAX_1023)
|
||||
#define AUFS_BRANCH_MAX 1023
|
||||
#elif defined(CONFIG_AUFS_BRANCH_MAX_32767)
|
||||
#define AUFS_BRANCH_MAX 32767
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#ifdef __KERNEL__
|
||||
#ifndef AUFS_BRANCH_MAX
|
||||
#error unknown CONFIG_AUFS_BRANCH_MAX value
|
||||
#endif
|
||||
#endif /* __KERNEL__ */
|
||||
|
||||
/* ---------------------------------------------------------------------- */
|
||||
|
||||
#define AUFS_FSTYPE AUFS_NAME
|
||||
|
||||
#define AUFS_ROOT_INO 2
|
||||
#define AUFS_FIRST_INO 11
|
||||
|
||||
#define AUFS_WH_PFX ".wh."
|
||||
#define AUFS_WH_PFX_LEN ((int)sizeof(AUFS_WH_PFX) - 1)
|
||||
#define AUFS_WH_TMP_LEN 4
|
||||
/* a limit for rmdir/rename a dir and copyup */
|
||||
#define AUFS_MAX_NAMELEN (NAME_MAX \
|
||||
- AUFS_WH_PFX_LEN * 2 /* doubly whiteouted */\
|
||||
- 1 /* dot */\
|
||||
- AUFS_WH_TMP_LEN) /* hex */
|
||||
#define AUFS_XINO_FNAME "." AUFS_NAME ".xino"
|
||||
#define AUFS_XINO_DEFPATH "/tmp/" AUFS_XINO_FNAME
|
||||
#define AUFS_XINO_DEF_SEC 30 /* seconds */
|
||||
#define AUFS_XINO_DEF_TRUNC 45 /* percentage */
|
||||
#define AUFS_DIRWH_DEF 3
|
||||
#define AUFS_RDCACHE_DEF 10 /* seconds */
|
||||
#define AUFS_RDCACHE_MAX 3600 /* seconds */
|
||||
#define AUFS_RDBLK_DEF 512 /* bytes */
|
||||
#define AUFS_RDHASH_DEF 32
|
||||
#define AUFS_WKQ_NAME AUFS_NAME "d"
|
||||
#define AUFS_MFS_DEF_SEC 30 /* seconds */
|
||||
#define AUFS_MFS_MAX_SEC 3600 /* seconds */
|
||||
#define AUFS_FHSM_CACHE_DEF_SEC 30 /* seconds */
|
||||
#define AUFS_PLINK_WARN 50 /* number of plinks in a single bucket */
|
||||
|
||||
/* pseudo-link maintenace under /proc */
|
||||
#define AUFS_PLINK_MAINT_NAME "plink_maint"
|
||||
#define AUFS_PLINK_MAINT_DIR "fs/" AUFS_NAME
|
||||
#define AUFS_PLINK_MAINT_PATH AUFS_PLINK_MAINT_DIR "/" AUFS_PLINK_MAINT_NAME
|
||||
|
||||
#define AUFS_DIROPQ_NAME AUFS_WH_PFX ".opq" /* whiteouted doubly */
|
||||
#define AUFS_WH_DIROPQ AUFS_WH_PFX AUFS_DIROPQ_NAME
|
||||
|
||||
#define AUFS_BASE_NAME AUFS_WH_PFX AUFS_NAME
|
||||
#define AUFS_PLINKDIR_NAME AUFS_WH_PFX "plnk"
|
||||
#define AUFS_ORPHDIR_NAME AUFS_WH_PFX "orph"
|
||||
|
||||
/* doubly whiteouted */
|
||||
#define AUFS_WH_BASE AUFS_WH_PFX AUFS_BASE_NAME
|
||||
#define AUFS_WH_PLINKDIR AUFS_WH_PFX AUFS_PLINKDIR_NAME
|
||||
#define AUFS_WH_ORPHDIR AUFS_WH_PFX AUFS_ORPHDIR_NAME
|
||||
|
||||
/* branch permissions and attributes */
|
||||
#define AUFS_BRPERM_RW "rw"
|
||||
#define AUFS_BRPERM_RO "ro"
|
||||
#define AUFS_BRPERM_RR "rr"
|
||||
#define AUFS_BRATTR_COO_REG "coo_reg"
|
||||
#define AUFS_BRATTR_COO_ALL "coo_all"
|
||||
#define AUFS_BRATTR_FHSM "fhsm"
|
||||
#define AUFS_BRATTR_UNPIN "unpin"
|
||||
#define AUFS_BRATTR_ICEX "icex"
|
||||
#define AUFS_BRATTR_ICEX_SEC "icexsec"
|
||||
#define AUFS_BRATTR_ICEX_SYS "icexsys"
|
||||
#define AUFS_BRATTR_ICEX_TR "icextr"
|
||||
#define AUFS_BRATTR_ICEX_USR "icexusr"
|
||||
#define AUFS_BRATTR_ICEX_OTH "icexoth"
|
||||
#define AUFS_BRRATTR_WH "wh"
|
||||
#define AUFS_BRWATTR_NLWH "nolwh"
|
||||
#define AUFS_BRWATTR_MOO "moo"
|
||||
|
||||
#define AuBrPerm_RW 1 /* writable, hardlinkable wh */
|
||||
#define AuBrPerm_RO (1 << 1) /* readonly */
|
||||
#define AuBrPerm_RR (1 << 2) /* natively readonly */
|
||||
#define AuBrPerm_Mask (AuBrPerm_RW | AuBrPerm_RO | AuBrPerm_RR)
|
||||
|
||||
#define AuBrAttr_COO_REG (1 << 3) /* copy-up on open */
|
||||
#define AuBrAttr_COO_ALL (1 << 4)
|
||||
#define AuBrAttr_COO_Mask (AuBrAttr_COO_REG | AuBrAttr_COO_ALL)
|
||||
|
||||
#define AuBrAttr_FHSM (1 << 5) /* file-based hsm */
|
||||
#define AuBrAttr_UNPIN (1 << 6) /* rename-able top dir of
|
||||
branch. meaningless since
|
||||
linux-3.18-rc1 */
|
||||
|
||||
/* ignore error in copying XATTR */
|
||||
#define AuBrAttr_ICEX_SEC (1 << 7)
|
||||
#define AuBrAttr_ICEX_SYS (1 << 8)
|
||||
#define AuBrAttr_ICEX_TR (1 << 9)
|
||||
#define AuBrAttr_ICEX_USR (1 << 10)
|
||||
#define AuBrAttr_ICEX_OTH (1 << 11)
|
||||
#define AuBrAttr_ICEX (AuBrAttr_ICEX_SEC \
|
||||
| AuBrAttr_ICEX_SYS \
|
||||
| AuBrAttr_ICEX_TR \
|
||||
| AuBrAttr_ICEX_USR \
|
||||
| AuBrAttr_ICEX_OTH)
|
||||
|
||||
#define AuBrRAttr_WH (1 << 12) /* whiteout-able */
|
||||
#define AuBrRAttr_Mask AuBrRAttr_WH
|
||||
|
||||
#define AuBrWAttr_NoLinkWH (1 << 13) /* un-hardlinkable whiteouts */
|
||||
#define AuBrWAttr_MOO (1 << 14) /* move-up on open */
|
||||
#define AuBrWAttr_Mask (AuBrWAttr_NoLinkWH | AuBrWAttr_MOO)
|
||||
|
||||
#define AuBrAttr_CMOO_Mask (AuBrAttr_COO_Mask | AuBrWAttr_MOO)
|
||||
|
||||
/* #warning test userspace */
|
||||
#ifdef __KERNEL__
|
||||
#ifndef CONFIG_AUFS_FHSM
|
||||
#undef AuBrAttr_FHSM
|
||||
#define AuBrAttr_FHSM 0
|
||||
#endif
|
||||
#ifndef CONFIG_AUFS_XATTR
|
||||
#undef AuBrAttr_ICEX
|
||||
#define AuBrAttr_ICEX 0
|
||||
#undef AuBrAttr_ICEX_SEC
|
||||
#define AuBrAttr_ICEX_SEC 0
|
||||
#undef AuBrAttr_ICEX_SYS
|
||||
#define AuBrAttr_ICEX_SYS 0
|
||||
#undef AuBrAttr_ICEX_TR
|
||||
#define AuBrAttr_ICEX_TR 0
|
||||
#undef AuBrAttr_ICEX_USR
|
||||
#define AuBrAttr_ICEX_USR 0
|
||||
#undef AuBrAttr_ICEX_OTH
|
||||
#define AuBrAttr_ICEX_OTH 0
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/* the longest combination */
|
||||
/* AUFS_BRATTR_ICEX and AUFS_BRATTR_ICEX_TR don't affect here */
|
||||
#define AuBrPermStrSz sizeof(AUFS_BRPERM_RW \
|
||||
"+" AUFS_BRATTR_COO_REG \
|
||||
"+" AUFS_BRATTR_FHSM \
|
||||
"+" AUFS_BRATTR_UNPIN \
|
||||
"+" AUFS_BRATTR_ICEX_SEC \
|
||||
"+" AUFS_BRATTR_ICEX_SYS \
|
||||
"+" AUFS_BRATTR_ICEX_USR \
|
||||
"+" AUFS_BRATTR_ICEX_OTH \
|
||||
"+" AUFS_BRWATTR_NLWH)
|
||||
|
||||
typedef struct {
|
||||
char a[AuBrPermStrSz];
|
||||
} au_br_perm_str_t;
|
||||
|
||||
static inline int au_br_writable(int brperm)
|
||||
{
|
||||
return brperm & AuBrPerm_RW;
|
||||
}
|
||||
|
||||
static inline int au_br_whable(int brperm)
|
||||
{
|
||||
return brperm & (AuBrPerm_RW | AuBrRAttr_WH);
|
||||
}
|
||||
|
||||
static inline int au_br_wh_linkable(int brperm)
|
||||
{
|
||||
return !(brperm & AuBrWAttr_NoLinkWH);
|
||||
}
|
||||
|
||||
static inline int au_br_cmoo(int brperm)
|
||||
{
|
||||
return brperm & AuBrAttr_CMOO_Mask;
|
||||
}
|
||||
|
||||
static inline int au_br_fhsm(int brperm)
|
||||
{
|
||||
return brperm & AuBrAttr_FHSM;
|
||||
}
|
||||
|
||||
/* ---------------------------------------------------------------------- */
|
||||
|
||||
/* ioctl */
|
||||
enum {
|
||||
/* readdir in userspace */
|
||||
AuCtl_RDU,
|
||||
AuCtl_RDU_INO,
|
||||
|
||||
AuCtl_WBR_FD, /* pathconf wrapper */
|
||||
AuCtl_IBUSY, /* busy inode */
|
||||
AuCtl_MVDOWN, /* move-down */
|
||||
AuCtl_BR, /* info about branches */
|
||||
AuCtl_FHSM_FD /* connection for fhsm */
|
||||
};
|
||||
|
||||
/* borrowed from linux/include/linux/kernel.h */
|
||||
#ifndef ALIGN
|
||||
#define ALIGN(x, a) __ALIGN_MASK(x, (typeof(x))(a)-1)
|
||||
#define __ALIGN_MASK(x, mask) (((x)+(mask))&~(mask))
|
||||
#endif
|
||||
|
||||
/* borrowed from linux/include/linux/compiler-gcc3.h */
|
||||
#ifndef __aligned
|
||||
#define __aligned(x) __attribute__((aligned(x)))
|
||||
#endif
|
||||
|
||||
#ifdef __KERNEL__
|
||||
#ifndef __packed
|
||||
#define __packed __attribute__((packed))
|
||||
#endif
|
||||
#endif
|
||||
|
||||
struct au_rdu_cookie {
|
||||
uint64_t h_pos;
|
||||
int16_t bindex;
|
||||
uint8_t flags;
|
||||
uint8_t pad;
|
||||
uint32_t generation;
|
||||
} __aligned(8);
|
||||
|
||||
struct au_rdu_ent {
|
||||
uint64_t ino;
|
||||
int16_t bindex;
|
||||
uint8_t type;
|
||||
uint8_t nlen;
|
||||
uint8_t wh;
|
||||
char name[0];
|
||||
} __aligned(8);
|
||||
|
||||
static inline int au_rdu_len(int nlen)
|
||||
{
|
||||
/* include the terminating NULL */
|
||||
return ALIGN(sizeof(struct au_rdu_ent) + nlen + 1,
|
||||
sizeof(uint64_t));
|
||||
}
|
||||
|
||||
union au_rdu_ent_ul {
|
||||
struct au_rdu_ent *e;
|
||||
uint64_t ul;
|
||||
};
|
||||
|
||||
enum {
|
||||
AufsCtlRduV_SZ,
|
||||
AufsCtlRduV_End
|
||||
};
|
||||
|
||||
struct aufs_rdu {
|
||||
/* input */
|
||||
union {
|
||||
uint64_t sz; /* AuCtl_RDU */
|
||||
uint64_t nent; /* AuCtl_RDU_INO */
|
||||
};
|
||||
union au_rdu_ent_ul ent;
|
||||
uint16_t verify[AufsCtlRduV_End];
|
||||
|
||||
/* input/output */
|
||||
uint32_t blk;
|
||||
|
||||
/* output */
|
||||
union au_rdu_ent_ul tail;
|
||||
/* number of entries which were added in a single call */
|
||||
uint64_t rent;
|
||||
uint8_t full;
|
||||
uint8_t shwh;
|
||||
|
||||
struct au_rdu_cookie cookie;
|
||||
} __aligned(8);
|
||||
|
||||
/* ---------------------------------------------------------------------- */
|
||||
|
||||
struct aufs_wbr_fd {
|
||||
uint32_t oflags;
|
||||
int16_t brid;
|
||||
} __aligned(8);
|
||||
|
||||
/* ---------------------------------------------------------------------- */
|
||||
|
||||
struct aufs_ibusy {
|
||||
uint64_t ino, h_ino;
|
||||
int16_t bindex;
|
||||
} __aligned(8);
|
||||
|
||||
/* ---------------------------------------------------------------------- */
|
||||
|
||||
/* error code for move-down */
|
||||
/* the actual message strings are implemented in aufs-util.git */
|
||||
enum {
|
||||
EAU_MVDOWN_OPAQUE = 1,
|
||||
EAU_MVDOWN_WHITEOUT,
|
||||
EAU_MVDOWN_UPPER,
|
||||
EAU_MVDOWN_BOTTOM,
|
||||
EAU_MVDOWN_NOUPPER,
|
||||
EAU_MVDOWN_NOLOWERBR,
|
||||
EAU_Last
|
||||
};
|
||||
|
||||
/* flags for move-down */
|
||||
#define AUFS_MVDOWN_DMSG 1
|
||||
#define AUFS_MVDOWN_OWLOWER (1 << 1) /* overwrite lower */
|
||||
#define AUFS_MVDOWN_KUPPER (1 << 2) /* keep upper */
|
||||
#define AUFS_MVDOWN_ROLOWER (1 << 3) /* do even if lower is RO */
|
||||
#define AUFS_MVDOWN_ROLOWER_R (1 << 4) /* did on lower RO */
|
||||
#define AUFS_MVDOWN_ROUPPER (1 << 5) /* do even if upper is RO */
|
||||
#define AUFS_MVDOWN_ROUPPER_R (1 << 6) /* did on upper RO */
|
||||
#define AUFS_MVDOWN_BRID_UPPER (1 << 7) /* upper brid */
|
||||
#define AUFS_MVDOWN_BRID_LOWER (1 << 8) /* lower brid */
|
||||
#define AUFS_MVDOWN_FHSM_LOWER (1 << 9) /* find fhsm attr for lower */
|
||||
#define AUFS_MVDOWN_STFS (1 << 10) /* req. stfs */
|
||||
#define AUFS_MVDOWN_STFS_FAILED (1 << 11) /* output: stfs is unusable */
|
||||
#define AUFS_MVDOWN_BOTTOM (1 << 12) /* output: no more lowers */
|
||||
|
||||
/* index for move-down */
|
||||
enum {
|
||||
AUFS_MVDOWN_UPPER,
|
||||
AUFS_MVDOWN_LOWER,
|
||||
AUFS_MVDOWN_NARRAY
|
||||
};
|
||||
|
||||
/*
|
||||
* additional info of move-down
|
||||
* number of free blocks and inodes.
|
||||
* subset of struct kstatfs, but smaller and always 64bit.
|
||||
*/
|
||||
struct aufs_stfs {
|
||||
uint64_t f_blocks;
|
||||
uint64_t f_bavail;
|
||||
uint64_t f_files;
|
||||
uint64_t f_ffree;
|
||||
};
|
||||
|
||||
struct aufs_stbr {
|
||||
int16_t brid; /* optional input */
|
||||
int16_t bindex; /* output */
|
||||
struct aufs_stfs stfs; /* output when AUFS_MVDOWN_STFS set */
|
||||
} __aligned(8);
|
||||
|
||||
struct aufs_mvdown {
|
||||
uint32_t flags; /* input/output */
|
||||
struct aufs_stbr stbr[AUFS_MVDOWN_NARRAY]; /* input/output */
|
||||
int8_t au_errno; /* output */
|
||||
} __aligned(8);
|
||||
|
||||
/* ---------------------------------------------------------------------- */
|
||||
|
||||
union aufs_brinfo {
|
||||
/* PATH_MAX may differ between kernel-space and user-space */
|
||||
char _spacer[4096];
|
||||
struct {
|
||||
int16_t id;
|
||||
int perm;
|
||||
char path[0];
|
||||
};
|
||||
} __aligned(8);
|
||||
|
||||
/* ---------------------------------------------------------------------- */
|
||||
|
||||
#define AuCtlType 'A'
|
||||
#define AUFS_CTL_RDU _IOWR(AuCtlType, AuCtl_RDU, struct aufs_rdu)
|
||||
#define AUFS_CTL_RDU_INO _IOWR(AuCtlType, AuCtl_RDU_INO, struct aufs_rdu)
|
||||
#define AUFS_CTL_WBR_FD _IOW(AuCtlType, AuCtl_WBR_FD, \
|
||||
struct aufs_wbr_fd)
|
||||
#define AUFS_CTL_IBUSY _IOWR(AuCtlType, AuCtl_IBUSY, struct aufs_ibusy)
|
||||
#define AUFS_CTL_MVDOWN _IOWR(AuCtlType, AuCtl_MVDOWN, \
|
||||
struct aufs_mvdown)
|
||||
#define AUFS_CTL_BRINFO _IOW(AuCtlType, AuCtl_BR, union aufs_brinfo)
|
||||
#define AUFS_CTL_FHSM_FD _IOW(AuCtlType, AuCtl_FHSM_FD, int)
|
||||
|
||||
#endif /* __AUFS_TYPE_H__ */
|
||||
|
|
@ -45,6 +45,7 @@ aufs4.4-20160912.patch
|
|||
lockdep-debug.patch
|
||||
tmpfs-idr.patch
|
||||
vfs-ino.patch
|
||||
aufs_type.h
|
||||
$name.config $name.config_64)
|
||||
|
||||
## Time to build everything
|
||||
|
|
@ -145,6 +146,8 @@ done
|
|||
# depmod needed
|
||||
depmod -b $PKG -a ${KERNEL_VERSION}
|
||||
|
||||
install -D -m 644 $SRC/aufs_type.h "${PKG}/usr/include/linux/aufs_type.h
|
||||
|
||||
# Install config and kernel files
|
||||
cd $SRC/linux-${_version}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue