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[XFS] inode items and EFI/EFDs have different ondisk format for 32bit and

Browse Source 
64bit kernels allow recovery to handle both versions and do the necessary
decoding

SGI-PV: 952214
SGI-Modid: xfs-linux-melb:xfs-kern:26011a

Signed-off-by: Tim Shimmin <tes@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
This commit is contained in:
Tim Shimmin 2006-06-09 14:55:38 +10:00 committed by Nathan Scott
parent d210a28cd8
commit 6d192a9b82
5 changed files with 245 additions and 61 deletions
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56
fs/xfs/xfs_extfree_item.c
View File

@ -293,6 +293,62 @@ xfs_efi_init(xfs_mount_t *mp,
return (efip);
}
/*
* Copy an EFI format buffer from the given buf, and into the destination
* EFI format structure.
* The given buffer can be in 32 bit or 64 bit form (which has different padding),
* one of which will be the native format for this kernel.
* It will handle the conversion of formats if necessary.
*/
int
xfs_efi_copy_format(xfs_log_iovec_t *buf, xfs_efi_log_format_t *dst_efi_fmt)
{
xfs_efi_log_format_t *src_efi_fmt = (xfs_efi_log_format_t *)buf->i_addr;
uint i;
uint len = sizeof(xfs_efi_log_format_t) +
(src_efi_fmt->efi_nextents - 1) * sizeof(xfs_extent_t);
uint len32 = sizeof(xfs_efi_log_format_32_t) +
(src_efi_fmt->efi_nextents - 1) * sizeof(xfs_extent_32_t);
uint len64 = sizeof(xfs_efi_log_format_64_t) +
(src_efi_fmt->efi_nextents - 1) * sizeof(xfs_extent_64_t);
if (buf->i_len == len) {
memcpy((char *)dst_efi_fmt, (char*)src_efi_fmt, len);
return 0;
} else if (buf->i_len == len32) {
xfs_efi_log_format_32_t *src_efi_fmt_32 =
(xfs_efi_log_format_32_t *)buf->i_addr;
dst_efi_fmt->efi_type = src_efi_fmt_32->efi_type;
dst_efi_fmt->efi_size = src_efi_fmt_32->efi_size;
dst_efi_fmt->efi_nextents = src_efi_fmt_32->efi_nextents;
dst_efi_fmt->efi_id = src_efi_fmt_32->efi_id;
for (i = 0; i < dst_efi_fmt->efi_nextents; i++) {
dst_efi_fmt->efi_extents[i].ext_start =
src_efi_fmt_32->efi_extents[i].ext_start;
dst_efi_fmt->efi_extents[i].ext_len =
src_efi_fmt_32->efi_extents[i].ext_len;
}
return 0;
} else if (buf->i_len == len64) {
xfs_efi_log_format_64_t *src_efi_fmt_64 =
(xfs_efi_log_format_64_t *)buf->i_addr;
dst_efi_fmt->efi_type = src_efi_fmt_64->efi_type;
dst_efi_fmt->efi_size = src_efi_fmt_64->efi_size;
dst_efi_fmt->efi_nextents = src_efi_fmt_64->efi_nextents;
dst_efi_fmt->efi_id = src_efi_fmt_64->efi_id;
for (i = 0; i < dst_efi_fmt->efi_nextents; i++) {
dst_efi_fmt->efi_extents[i].ext_start =
src_efi_fmt_64->efi_extents[i].ext_start;
dst_efi_fmt->efi_extents[i].ext_len =
src_efi_fmt_64->efi_extents[i].ext_len;
}
return 0;
}
return EFSCORRUPTED;
}
/*
* This is called by the efd item code below to release references to
* the given efi item. Each efd calls this with the number of

53
fs/xfs/xfs_extfree_item.h
View File

@ -26,6 +26,24 @@ typedef struct xfs_extent {
xfs_extlen_t ext_len;
} xfs_extent_t;
/*
* Since an xfs_extent_t has types (start:64, len: 32)
* there are different alignments on 32 bit and 64 bit kernels.
* So we provide the different variants for use by a
* conversion routine.
*/
typedef struct xfs_extent_32 {
xfs_dfsbno_t ext_start;
xfs_extlen_t ext_len;
} __attribute__((packed)) xfs_extent_32_t;
typedef struct xfs_extent_64 {
xfs_dfsbno_t ext_start;
xfs_extlen_t ext_len;
__uint32_t ext_pad;
} xfs_extent_64_t;
/*
* This is the structure used to lay out an efi log item in the
* log. The efi_extents field is a variable size array whose
@ -39,6 +57,22 @@ typedef struct xfs_efi_log_format {
xfs_extent_t efi_extents[1]; /* array of extents to free */
} xfs_efi_log_format_t;
typedef struct xfs_efi_log_format_32 {
unsigned short efi_type; /* efi log item type */
unsigned short efi_size; /* size of this item */
uint efi_nextents; /* # extents to free */
__uint64_t efi_id; /* efi identifier */
xfs_extent_32_t efi_extents[1]; /* array of extents to free */
} __attribute__((packed)) xfs_efi_log_format_32_t;
typedef struct xfs_efi_log_format_64 {
unsigned short efi_type; /* efi log item type */
unsigned short efi_size; /* size of this item */
uint efi_nextents; /* # extents to free */
__uint64_t efi_id; /* efi identifier */
xfs_extent_64_t efi_extents[1]; /* array of extents to free */
} xfs_efi_log_format_64_t;
/*
* This is the structure used to lay out an efd log item in the
* log. The efd_extents array is a variable size array whose
@ -52,6 +86,22 @@ typedef struct xfs_efd_log_format {
xfs_extent_t efd_extents[1]; /* array of extents freed */
} xfs_efd_log_format_t;
typedef struct xfs_efd_log_format_32 {
unsigned short efd_type; /* efd log item type */
unsigned short efd_size; /* size of this item */
uint efd_nextents; /* # of extents freed */
__uint64_t efd_efi_id; /* id of corresponding efi */
xfs_extent_32_t efd_extents[1]; /* array of extents freed */
} __attribute__((packed)) xfs_efd_log_format_32_t;
typedef struct xfs_efd_log_format_64 {
unsigned short efd_type; /* efd log item type */
unsigned short efd_size; /* size of this item */
uint efd_nextents; /* # of extents freed */
__uint64_t efd_efi_id; /* id of corresponding efi */
xfs_extent_64_t efd_extents[1]; /* array of extents freed */
} xfs_efd_log_format_64_t;
#ifdef __KERNEL__
@ -103,7 +153,8 @@ extern struct kmem_zone *xfs_efd_zone;
xfs_efi_log_item_t *xfs_efi_init(struct xfs_mount *, uint);
xfs_efd_log_item_t *xfs_efd_init(struct xfs_mount *, xfs_efi_log_item_t *,
uint);
int xfs_efi_copy_format(xfs_log_iovec_t *buf,
xfs_efi_log_format_t *dst_efi_fmt);
void xfs_efi_item_free(xfs_efi_log_item_t *);
#endif /* __KERNEL__ */

49
fs/xfs/xfs_inode_item.c
View File

@ -1084,3 +1084,52 @@ xfs_istale_done(
{
xfs_iflush_abort(iip->ili_inode);
}
/*
* convert an xfs_inode_log_format struct from either 32 or 64 bit versions
* (which can have different field alignments) to the native version
*/
int
xfs_inode_item_format_convert(
xfs_log_iovec_t *buf,
xfs_inode_log_format_t *in_f)
{
if (buf->i_len == sizeof(xfs_inode_log_format_32_t)) {
xfs_inode_log_format_32_t *in_f32;
in_f32 = (xfs_inode_log_format_32_t *)buf->i_addr;
in_f->ilf_type = in_f32->ilf_type;
in_f->ilf_size = in_f32->ilf_size;
in_f->ilf_fields = in_f32->ilf_fields;
in_f->ilf_asize = in_f32->ilf_asize;
in_f->ilf_dsize = in_f32->ilf_dsize;
in_f->ilf_ino = in_f32->ilf_ino;
/* copy biggest field of ilf_u */
memcpy(in_f->ilf_u.ilfu_uuid.__u_bits,
in_f32->ilf_u.ilfu_uuid.__u_bits,
sizeof(uuid_t));
in_f->ilf_blkno = in_f32->ilf_blkno;
in_f->ilf_len = in_f32->ilf_len;
in_f->ilf_boffset = in_f32->ilf_boffset;
return 0;
} else if (buf->i_len == sizeof(xfs_inode_log_format_64_t)){
xfs_inode_log_format_64_t *in_f64;
in_f64 = (xfs_inode_log_format_64_t *)buf->i_addr;
in_f->ilf_type = in_f64->ilf_type;
in_f->ilf_size = in_f64->ilf_size;
in_f->ilf_fields = in_f64->ilf_fields;
in_f->ilf_asize = in_f64->ilf_asize;
in_f->ilf_dsize = in_f64->ilf_dsize;
in_f->ilf_ino = in_f64->ilf_ino;
/* copy biggest field of ilf_u */
memcpy(in_f->ilf_u.ilfu_uuid.__u_bits,
in_f64->ilf_u.ilfu_uuid.__u_bits,
sizeof(uuid_t));
in_f->ilf_blkno = in_f64->ilf_blkno;
in_f->ilf_len = in_f64->ilf_len;
in_f->ilf_boffset = in_f64->ilf_boffset;
return 0;
}
return EFSCORRUPTED;
}

61
fs/xfs/xfs_inode_item.h
View File

@ -23,25 +23,6 @@
* log. The size of the inline data/extents/b-tree root to be logged
* (if any) is indicated in the ilf_dsize field. Changes to this structure
* must be added on to the end.
*
* Convention for naming inode log item versions : The current version
* is always named XFS_LI_INODE. When an inode log item gets superseded,
* add the latest version of IRIX that will generate logs with that item
* to the version name.
*
* -Version 1 of this structure (XFS_LI_5_3_INODE) included up to the first
* union (ilf_u) field. This was released with IRIX 5.3-XFS.
* -Version 2 of this structure (XFS_LI_6_1_INODE) is currently the entire
* structure. This was released with IRIX 6.0.1-XFS and IRIX 6.1.
* -Version 3 of this structure (XFS_LI_INODE) is the same as version 2
* so a new structure definition wasn't necessary. However, we had
* to add a new type because the inode cluster size changed from 4K
* to 8K and the version number had to be rev'ved to keep older kernels
* from trying to recover logs with the 8K buffers in them. The logging
* code can handle recovery on different-sized clusters now so hopefully
* this'll be the last time we need to change the inode log item just
* for a change in the inode cluster size. This new version was
* released with IRIX 6.2.
*/
typedef struct xfs_inode_log_format {
unsigned short ilf_type; /* inode log item type */
@ -59,18 +40,38 @@ typedef struct xfs_inode_log_format {
int ilf_boffset; /* off of inode in buffer */
} xfs_inode_log_format_t;
/* Initial version shipped with IRIX 5.3-XFS */
typedef struct xfs_inode_log_format_v1 {
unsigned short ilf_type; /* inode log item type */
unsigned short ilf_size; /* size of this item */
uint ilf_fields; /* flags for fields logged */
uint ilf_dsize; /* size of data/ext/root */
xfs_ino_t ilf_ino; /* inode number */
typedef struct xfs_inode_log_format_32 {
unsigned short ilf_type; /* 16: inode log item type */
unsigned short ilf_size; /* 16: size of this item */
uint ilf_fields; /* 32: flags for fields logged */
ushort ilf_asize; /* 32: size of attr d/ext/root */
ushort ilf_dsize; /* 32: size of data/ext/root */
xfs_ino_t ilf_ino; /* 64: inode number */
union {
xfs_dev_t ilfu_rdev; /* rdev value for dev inode*/
uuid_t ilfu_uuid; /* mount point value */
xfs_dev_t ilfu_rdev; /* 32: rdev value for dev inode*/
uuid_t ilfu_uuid; /* 128: mount point value */
} ilf_u;
} xfs_inode_log_format_t_v1;
__int64_t ilf_blkno; /* 64: blkno of inode buffer */
int ilf_len; /* 32: len of inode buffer */
int ilf_boffset; /* 32: off of inode in buffer */
} __attribute__((packed)) xfs_inode_log_format_32_t;
typedef struct xfs_inode_log_format_64 {
unsigned short ilf_type; /* 16: inode log item type */
unsigned short ilf_size; /* 16: size of this item */
uint ilf_fields; /* 32: flags for fields logged */
ushort ilf_asize; /* 32: size of attr d/ext/root */
ushort ilf_dsize; /* 32: size of data/ext/root */
__uint32_t ilf_pad; /* 32: pad for 64 bit boundary */
xfs_ino_t ilf_ino; /* 64: inode number */
union {
xfs_dev_t ilfu_rdev; /* 32: rdev value for dev inode*/
uuid_t ilfu_uuid; /* 128: mount point value */
} ilf_u;
__int64_t ilf_blkno; /* 64: blkno of inode buffer */
int ilf_len; /* 32: len of inode buffer */
int ilf_boffset; /* 32: off of inode in buffer */
} xfs_inode_log_format_64_t;
/*
* Flags for xfs_trans_log_inode flags field.
@ -172,6 +173,8 @@ extern void xfs_inode_item_destroy(struct xfs_inode *);
extern void xfs_iflush_done(struct xfs_buf *, xfs_inode_log_item_t *);
extern void xfs_istale_done(struct xfs_buf *, xfs_inode_log_item_t *);
extern void xfs_iflush_abort(struct xfs_inode *);
extern int xfs_inode_item_format_convert(xfs_log_iovec_t *,
xfs_inode_log_format_t *);
#endif /* __KERNEL__ */

87
fs/xfs/xfs_log_recover.c
View File

@ -2292,12 +2292,22 @@ xlog_recover_do_inode_trans(
int attr_index;
uint fields;
xfs_dinode_core_t *dicp;
int need_free = 0;
if (pass == XLOG_RECOVER_PASS1) {
return 0;
}
in_f = (xfs_inode_log_format_t *)item->ri_buf[0].i_addr;
if (item->ri_buf[0].i_len == sizeof(xfs_inode_log_format_t)) {
in_f = (xfs_inode_log_format_t *)item->ri_buf[0].i_addr;
} else {
in_f = (xfs_inode_log_format_t *)kmem_alloc(
sizeof(xfs_inode_log_format_t), KM_SLEEP);
need_free = 1;
error = xfs_inode_item_format_convert(&item->ri_buf[0], in_f);
if (error)
goto error;
}
ino = in_f->ilf_ino;
mp = log->l_mp;
if (ITEM_TYPE(item) == XFS_LI_INODE) {
@ -2323,8 +2333,10 @@ xlog_recover_do_inode_trans(
* Inode buffers can be freed, look out for it,
* and do not replay the inode.
*/
if (xlog_check_buffer_cancelled(log, imap.im_blkno, imap.im_len, 0))
return 0;
if (xlog_check_buffer_cancelled(log, imap.im_blkno, imap.im_len, 0)) {
error = 0;
goto error;
}
bp = xfs_buf_read_flags(mp->m_ddev_targp, imap.im_blkno, imap.im_len,
XFS_BUF_LOCK);
@ -2333,7 +2345,7 @@ xlog_recover_do_inode_trans(
bp, imap.im_blkno);
error = XFS_BUF_GETERROR(bp);
xfs_buf_relse(bp);
return error;
goto error;
}
error = 0;
ASSERT(in_f->ilf_fields & XFS_ILOG_CORE);
@ -2350,7 +2362,8 @@ xlog_recover_do_inode_trans(
dip, bp, ino);
XFS_ERROR_REPORT("xlog_recover_do_inode_trans(1)",
XFS_ERRLEVEL_LOW, mp);
return XFS_ERROR(EFSCORRUPTED);
error = EFSCORRUPTED;
goto error;
}
dicp = (xfs_dinode_core_t*)(item->ri_buf[1].i_addr);
if (unlikely(dicp->di_magic != XFS_DINODE_MAGIC)) {
@ -2360,7 +2373,8 @@ xlog_recover_do_inode_trans(
item, ino);
XFS_ERROR_REPORT("xlog_recover_do_inode_trans(2)",
XFS_ERRLEVEL_LOW, mp);
return XFS_ERROR(EFSCORRUPTED);
error = EFSCORRUPTED;
goto error;
}
/* Skip replay when the on disk inode is newer than the log one */
@ -2376,7 +2390,8 @@ xlog_recover_do_inode_trans(
/* do nothing */
} else {
xfs_buf_relse(bp);
return 0;
error = 0;
goto error;
}
}
/* Take the opportunity to reset the flush iteration count */
@ -2391,7 +2406,8 @@ xlog_recover_do_inode_trans(
xfs_fs_cmn_err(CE_ALERT, mp,
"xfs_inode_recover: Bad regular inode log record, rec ptr 0x%p, ino ptr = 0x%p, ino bp = 0x%p, ino %Ld",
item, dip, bp, ino);
return XFS_ERROR(EFSCORRUPTED);
error = EFSCORRUPTED;
goto error;
}
} else if (unlikely((dicp->di_mode & S_IFMT) == S_IFDIR)) {
if ((dicp->di_format != XFS_DINODE_FMT_EXTENTS) &&
@ -2403,7 +2419,8 @@ xlog_recover_do_inode_trans(
xfs_fs_cmn_err(CE_ALERT, mp,
"xfs_inode_recover: Bad dir inode log record, rec ptr 0x%p, ino ptr = 0x%p, ino bp = 0x%p, ino %Ld",
item, dip, bp, ino);
return XFS_ERROR(EFSCORRUPTED);
error = EFSCORRUPTED;
goto error;
}
}
if (unlikely(dicp->di_nextents + dicp->di_anextents > dicp->di_nblocks)){
@ -2415,7 +2432,8 @@ xlog_recover_do_inode_trans(
item, dip, bp, ino,
dicp->di_nextents + dicp->di_anextents,
dicp->di_nblocks);
return XFS_ERROR(EFSCORRUPTED);
error = EFSCORRUPTED;
goto error;
}
if (unlikely(dicp->di_forkoff > mp->m_sb.sb_inodesize)) {
XFS_CORRUPTION_ERROR("xlog_recover_do_inode_trans(6)",
@ -2424,7 +2442,8 @@ xlog_recover_do_inode_trans(
xfs_fs_cmn_err(CE_ALERT, mp,
"xfs_inode_recover: Bad inode log rec ptr 0x%p, dino ptr 0x%p, dino bp 0x%p, ino %Ld, forkoff 0x%x",
item, dip, bp, ino, dicp->di_forkoff);
return XFS_ERROR(EFSCORRUPTED);
error = EFSCORRUPTED;
goto error;
}
if (unlikely(item->ri_buf[1].i_len > sizeof(xfs_dinode_core_t))) {
XFS_CORRUPTION_ERROR("xlog_recover_do_inode_trans(7)",
@ -2433,7 +2452,8 @@ xlog_recover_do_inode_trans(
xfs_fs_cmn_err(CE_ALERT, mp,
"xfs_inode_recover: Bad inode log record length %d, rec ptr 0x%p",
item->ri_buf[1].i_len, item);
return XFS_ERROR(EFSCORRUPTED);
error = EFSCORRUPTED;
goto error;
}
/* The core is in in-core format */
@ -2521,7 +2541,8 @@ xlog_recover_do_inode_trans(
xlog_warn("XFS: xlog_recover_do_inode_trans: Invalid flag");
ASSERT(0);
xfs_buf_relse(bp);
return XFS_ERROR(EIO);
error = EIO;
goto error;
}
}
@ -2537,7 +2558,10 @@ write_inode_buffer:
error = xfs_bwrite(mp, bp);
}
return (error);
error:
if (need_free)
kmem_free(in_f, sizeof(*in_f));
return XFS_ERROR(error);
}
/*
@ -2674,32 +2698,32 @@ xlog_recover_do_dquot_trans(
* structure into it, and adds the efi to the AIL with the given
* LSN.
*/
STATIC void
STATIC int
xlog_recover_do_efi_trans(
xlog_t *log,
xlog_recover_item_t *item,
xfs_lsn_t lsn,
int pass)
{
int error;
xfs_mount_t *mp;
xfs_efi_log_item_t *efip;
xfs_efi_log_format_t *efi_formatp;
SPLDECL(s);
if (pass == XLOG_RECOVER_PASS1) {
return;
return 0;
}
efi_formatp = (xfs_efi_log_format_t *)item->ri_buf[0].i_addr;
ASSERT(item->ri_buf[0].i_len ==
(sizeof(xfs_efi_log_format_t) +
((efi_formatp->efi_nextents - 1) * sizeof(xfs_extent_t))));
mp = log->l_mp;
efip = xfs_efi_init(mp, efi_formatp->efi_nextents);
memcpy((char *)&(efip->efi_format), (char *)efi_formatp,
sizeof(xfs_efi_log_format_t) +
((efi_formatp->efi_nextents - 1) * sizeof(xfs_extent_t)));
if ((error = xfs_efi_copy_format(&(item->ri_buf[0]),
&(efip->efi_format)))) {
xfs_efi_item_free(efip);
return error;
}
efip->efi_next_extent = efi_formatp->efi_nextents;
efip->efi_flags |= XFS_EFI_COMMITTED;
@ -2708,6 +2732,7 @@ xlog_recover_do_efi_trans(
* xfs_trans_update_ail() drops the AIL lock.
*/
xfs_trans_update_ail(mp, (xfs_log_item_t *)efip, lsn, s);
return 0;
}
@ -2738,9 +2763,10 @@ xlog_recover_do_efd_trans(
}
efd_formatp = (xfs_efd_log_format_t *)item->ri_buf[0].i_addr;
ASSERT(item->ri_buf[0].i_len ==
(sizeof(xfs_efd_log_format_t) +
((efd_formatp->efd_nextents - 1) * sizeof(xfs_extent_t))));
ASSERT((item->ri_buf[0].i_len == (sizeof(xfs_efd_log_format_32_t) +
((efd_formatp->efd_nextents - 1) * sizeof(xfs_extent_32_t)))) ||
(item->ri_buf[0].i_len == (sizeof(xfs_efd_log_format_64_t) +
((efd_formatp->efd_nextents - 1) * sizeof(xfs_extent_64_t)))));
efi_id = efd_formatp->efd_efi_id;
/*
@ -2810,15 +2836,14 @@ xlog_recover_do_trans(
if ((error = xlog_recover_do_buffer_trans(log, item,
pass)))
break;
} else if ((ITEM_TYPE(item) == XFS_LI_INODE) ||
(ITEM_TYPE(item) == XFS_LI_6_1_INODE) ||
(ITEM_TYPE(item) == XFS_LI_5_3_INODE)) {
} else if ((ITEM_TYPE(item) == XFS_LI_INODE)) {
if ((error = xlog_recover_do_inode_trans(log, item,
pass)))
break;
} else if (ITEM_TYPE(item) == XFS_LI_EFI) {
xlog_recover_do_efi_trans(log, item, trans->r_lsn,
pass);
if ((error = xlog_recover_do_efi_trans(log, item, trans->r_lsn,
pass)))
break;
} else if (ITEM_TYPE(item) == XFS_LI_EFD) {
xlog_recover_do_efd_trans(log, item, pass);
} else if (ITEM_TYPE(item) == XFS_LI_DQUOT) {
@ -3798,7 +3823,7 @@ xlog_do_log_recovery(
error = xlog_do_recovery_pass(log, head_blk, tail_blk,
XLOG_RECOVER_PASS2);
#ifdef DEBUG
{
if (!error) {
int i;
for (i = 0; i < XLOG_BC_TABLE_SIZE; i++)