AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-12-19 00:47:22 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity
5e0cd1ef64
linux_dsm_epyc7002/fs/xfs/libxfs/xfs_da_format.c
Eric Sandeen 250d4b4c40 xfs: remove unused header files 
There are many, many xfs header files which are included but
unneeded (or included twice) in the xfs code, so remove them.

nb: xfs_linux.h includes about 9 headers for everyone, so those
explicit includes get removed by this.  I'm not sure what the
preference is, but if we wanted explicit includes everywhere,
a followup patch could remove those xfs_*.h includes from
xfs_linux.h and move them into the files that need them.
Or it could be left as-is.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-06-28 19:30:43 -07:00

889 lines
23 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2000,2002,2005 Silicon Graphics, Inc.
* Copyright (c) 2013 Red Hat, Inc.
* All Rights Reserved.
*/
#include "xfs.h"
#include "xfs_fs.h"
#include "xfs_shared.h"
#include "xfs_format.h"
#include "xfs_log_format.h"
#include "xfs_trans_resv.h"
#include "xfs_mount.h"
#include "xfs_inode.h"
#include "xfs_dir2.h"
/*
* Shortform directory ops
*/
static int
xfs_dir2_sf_entsize(
struct xfs_dir2_sf_hdr *hdr,
int len)
{
int count = sizeof(struct xfs_dir2_sf_entry); /* namelen + offset */
count += len; /* name */
count += hdr->i8count ? XFS_INO64_SIZE : XFS_INO32_SIZE; /* ino # */
return count;
}
static int
xfs_dir3_sf_entsize(
struct xfs_dir2_sf_hdr *hdr,
int len)
{
return xfs_dir2_sf_entsize(hdr, len) + sizeof(uint8_t);
}
static struct xfs_dir2_sf_entry *
xfs_dir2_sf_nextentry(
struct xfs_dir2_sf_hdr *hdr,
struct xfs_dir2_sf_entry *sfep)
{
return (struct xfs_dir2_sf_entry *)
((char *)sfep + xfs_dir2_sf_entsize(hdr, sfep->namelen));
}
static struct xfs_dir2_sf_entry *
xfs_dir3_sf_nextentry(
struct xfs_dir2_sf_hdr *hdr,
struct xfs_dir2_sf_entry *sfep)
{
return (struct xfs_dir2_sf_entry *)
((char *)sfep + xfs_dir3_sf_entsize(hdr, sfep->namelen));
}
/*
* For filetype enabled shortform directories, the file type field is stored at
* the end of the name. Because it's only a single byte, endian conversion is
* not necessary. For non-filetype enable directories, the type is always
* unknown and we never store the value.
*/
static uint8_t
xfs_dir2_sfe_get_ftype(
struct xfs_dir2_sf_entry *sfep)
{
return XFS_DIR3_FT_UNKNOWN;
}
static void
xfs_dir2_sfe_put_ftype(
struct xfs_dir2_sf_entry *sfep,
uint8_t ftype)
{
ASSERT(ftype < XFS_DIR3_FT_MAX);
}
static uint8_t
xfs_dir3_sfe_get_ftype(
struct xfs_dir2_sf_entry *sfep)
{
uint8_t ftype;
ftype = sfep->name[sfep->namelen];
if (ftype >= XFS_DIR3_FT_MAX)
return XFS_DIR3_FT_UNKNOWN;
return ftype;
}
static void
xfs_dir3_sfe_put_ftype(
struct xfs_dir2_sf_entry *sfep,
uint8_t ftype)
{
ASSERT(ftype < XFS_DIR3_FT_MAX);
sfep->name[sfep->namelen] = ftype;
}
/*
* Inode numbers in short-form directories can come in two versions,
* either 4 bytes or 8 bytes wide. These helpers deal with the
* two forms transparently by looking at the headers i8count field.
*
* For 64-bit inode number the most significant byte must be zero.
*/
static xfs_ino_t
xfs_dir2_sf_get_ino(
struct xfs_dir2_sf_hdr *hdr,
uint8_t *from)
{
if (hdr->i8count)
return get_unaligned_be64(from) & 0x00ffffffffffffffULL;
else
return get_unaligned_be32(from);
}
static void
xfs_dir2_sf_put_ino(
struct xfs_dir2_sf_hdr *hdr,
uint8_t *to,
xfs_ino_t ino)
{
ASSERT((ino & 0xff00000000000000ULL) == 0);
if (hdr->i8count)
put_unaligned_be64(ino, to);
else
put_unaligned_be32(ino, to);
}
static xfs_ino_t
xfs_dir2_sf_get_parent_ino(
struct xfs_dir2_sf_hdr *hdr)
{
return xfs_dir2_sf_get_ino(hdr, hdr->parent);
}
static void
xfs_dir2_sf_put_parent_ino(
struct xfs_dir2_sf_hdr *hdr,
xfs_ino_t ino)
{
xfs_dir2_sf_put_ino(hdr, hdr->parent, ino);
}
/*
* In short-form directory entries the inode numbers are stored at variable
* offset behind the entry name. If the entry stores a filetype value, then it
* sits between the name and the inode number. Hence the inode numbers may only
* be accessed through the helpers below.
*/
static xfs_ino_t
xfs_dir2_sfe_get_ino(
struct xfs_dir2_sf_hdr *hdr,
struct xfs_dir2_sf_entry *sfep)
{
return xfs_dir2_sf_get_ino(hdr, &sfep->name[sfep->namelen]);
}
static void
xfs_dir2_sfe_put_ino(
struct xfs_dir2_sf_hdr *hdr,
struct xfs_dir2_sf_entry *sfep,
xfs_ino_t ino)
{
xfs_dir2_sf_put_ino(hdr, &sfep->name[sfep->namelen], ino);
}
static xfs_ino_t
xfs_dir3_sfe_get_ino(
struct xfs_dir2_sf_hdr *hdr,
struct xfs_dir2_sf_entry *sfep)
{
return xfs_dir2_sf_get_ino(hdr, &sfep->name[sfep->namelen + 1]);
}
static void
xfs_dir3_sfe_put_ino(
struct xfs_dir2_sf_hdr *hdr,
struct xfs_dir2_sf_entry *sfep,
xfs_ino_t ino)
{
xfs_dir2_sf_put_ino(hdr, &sfep->name[sfep->namelen + 1], ino);
}
/*
* Directory data block operations
*/
/*
* For special situations, the dirent size ends up fixed because we always know
* what the size of the entry is. That's true for the "." and "..", and
* therefore we know that they are a fixed size and hence their offsets are
* constant, as is the first entry.
*
* Hence, this calculation is written as a macro to be able to be calculated at
* compile time and so certain offsets can be calculated directly in the
* structure initaliser via the macro. There are two macros - one for dirents
* with ftype and without so there are no unresolvable conditionals in the
* calculations. We also use round_up() as XFS_DIR2_DATA_ALIGN is always a power
* of 2 and the compiler doesn't reject it (unlike roundup()).
*/
#define XFS_DIR2_DATA_ENTSIZE(n) \
round_up((offsetof(struct xfs_dir2_data_entry, name[0]) + (n) + \
sizeof(xfs_dir2_data_off_t)), XFS_DIR2_DATA_ALIGN)
#define XFS_DIR3_DATA_ENTSIZE(n) \
round_up((offsetof(struct xfs_dir2_data_entry, name[0]) + (n) + \
sizeof(xfs_dir2_data_off_t) + sizeof(uint8_t)), \
XFS_DIR2_DATA_ALIGN)
static int
xfs_dir2_data_entsize(
int n)
{
return XFS_DIR2_DATA_ENTSIZE(n);
}
static int
xfs_dir3_data_entsize(
int n)
{
return XFS_DIR3_DATA_ENTSIZE(n);
}
static uint8_t
xfs_dir2_data_get_ftype(
struct xfs_dir2_data_entry *dep)
{
return XFS_DIR3_FT_UNKNOWN;
}
static void
xfs_dir2_data_put_ftype(
struct xfs_dir2_data_entry *dep,
uint8_t ftype)
{
ASSERT(ftype < XFS_DIR3_FT_MAX);
}
static uint8_t
xfs_dir3_data_get_ftype(
struct xfs_dir2_data_entry *dep)
{
uint8_t ftype = dep->name[dep->namelen];
if (ftype >= XFS_DIR3_FT_MAX)
return XFS_DIR3_FT_UNKNOWN;
return ftype;
}
static void
xfs_dir3_data_put_ftype(
struct xfs_dir2_data_entry *dep,
uint8_t type)
{
ASSERT(type < XFS_DIR3_FT_MAX);
ASSERT(dep->namelen != 0);
dep->name[dep->namelen] = type;
}
/*
* Pointer to an entry's tag word.
*/
static __be16 *
xfs_dir2_data_entry_tag_p(
struct xfs_dir2_data_entry *dep)
{
return (__be16 *)((char *)dep +
xfs_dir2_data_entsize(dep->namelen) - sizeof(__be16));
}
static __be16 *
xfs_dir3_data_entry_tag_p(
struct xfs_dir2_data_entry *dep)
{
return (__be16 *)((char *)dep +
xfs_dir3_data_entsize(dep->namelen) - sizeof(__be16));
}
/*
* location of . and .. in data space (always block 0)
*/
static struct xfs_dir2_data_entry *
xfs_dir2_data_dot_entry_p(
struct xfs_dir2_data_hdr *hdr)
{
return (struct xfs_dir2_data_entry *)
((char *)hdr + sizeof(struct xfs_dir2_data_hdr));
}
static struct xfs_dir2_data_entry *
xfs_dir2_data_dotdot_entry_p(
struct xfs_dir2_data_hdr *hdr)
{
return (struct xfs_dir2_data_entry *)
((char *)hdr + sizeof(struct xfs_dir2_data_hdr) +
XFS_DIR2_DATA_ENTSIZE(1));
}
static struct xfs_dir2_data_entry *
xfs_dir2_data_first_entry_p(
struct xfs_dir2_data_hdr *hdr)
{
return (struct xfs_dir2_data_entry *)
((char *)hdr + sizeof(struct xfs_dir2_data_hdr) +
XFS_DIR2_DATA_ENTSIZE(1) +
XFS_DIR2_DATA_ENTSIZE(2));
}
static struct xfs_dir2_data_entry *
xfs_dir2_ftype_data_dotdot_entry_p(
struct xfs_dir2_data_hdr *hdr)
{
return (struct xfs_dir2_data_entry *)
((char *)hdr + sizeof(struct xfs_dir2_data_hdr) +
XFS_DIR3_DATA_ENTSIZE(1));
}
static struct xfs_dir2_data_entry *
xfs_dir2_ftype_data_first_entry_p(
struct xfs_dir2_data_hdr *hdr)
{
return (struct xfs_dir2_data_entry *)
((char *)hdr + sizeof(struct xfs_dir2_data_hdr) +
XFS_DIR3_DATA_ENTSIZE(1) +
XFS_DIR3_DATA_ENTSIZE(2));
}
static struct xfs_dir2_data_entry *
xfs_dir3_data_dot_entry_p(
struct xfs_dir2_data_hdr *hdr)
{
return (struct xfs_dir2_data_entry *)
((char *)hdr + sizeof(struct xfs_dir3_data_hdr));
}
static struct xfs_dir2_data_entry *
xfs_dir3_data_dotdot_entry_p(
struct xfs_dir2_data_hdr *hdr)
{
return (struct xfs_dir2_data_entry *)
((char *)hdr + sizeof(struct xfs_dir3_data_hdr) +
XFS_DIR3_DATA_ENTSIZE(1));
}
static struct xfs_dir2_data_entry *
xfs_dir3_data_first_entry_p(
struct xfs_dir2_data_hdr *hdr)
{
return (struct xfs_dir2_data_entry *)
((char *)hdr + sizeof(struct xfs_dir3_data_hdr) +
XFS_DIR3_DATA_ENTSIZE(1) +
XFS_DIR3_DATA_ENTSIZE(2));
}
static struct xfs_dir2_data_free *
xfs_dir2_data_bestfree_p(struct xfs_dir2_data_hdr *hdr)
{
return hdr->bestfree;
}
static struct xfs_dir2_data_free *
xfs_dir3_data_bestfree_p(struct xfs_dir2_data_hdr *hdr)
{
return ((struct xfs_dir3_data_hdr *)hdr)->best_free;
}
static struct xfs_dir2_data_entry *
xfs_dir2_data_entry_p(struct xfs_dir2_data_hdr *hdr)
{
return (struct xfs_dir2_data_entry *)
((char *)hdr + sizeof(struct xfs_dir2_data_hdr));
}
static struct xfs_dir2_data_unused *
xfs_dir2_data_unused_p(struct xfs_dir2_data_hdr *hdr)
{
return (struct xfs_dir2_data_unused *)
((char *)hdr + sizeof(struct xfs_dir2_data_hdr));
}
static struct xfs_dir2_data_entry *
xfs_dir3_data_entry_p(struct xfs_dir2_data_hdr *hdr)
{
return (struct xfs_dir2_data_entry *)
((char *)hdr + sizeof(struct xfs_dir3_data_hdr));
}
static struct xfs_dir2_data_unused *
xfs_dir3_data_unused_p(struct xfs_dir2_data_hdr *hdr)
{
return (struct xfs_dir2_data_unused *)
((char *)hdr + sizeof(struct xfs_dir3_data_hdr));
}
/*
* Directory Leaf block operations
*/
static int
xfs_dir2_max_leaf_ents(struct xfs_da_geometry *geo)
{
return (geo->blksize - sizeof(struct xfs_dir2_leaf_hdr)) /
(uint)sizeof(struct xfs_dir2_leaf_entry);
}
static struct xfs_dir2_leaf_entry *
xfs_dir2_leaf_ents_p(struct xfs_dir2_leaf *lp)
{
return lp->__ents;
}
static int
xfs_dir3_max_leaf_ents(struct xfs_da_geometry *geo)
{
return (geo->blksize - sizeof(struct xfs_dir3_leaf_hdr)) /
(uint)sizeof(struct xfs_dir2_leaf_entry);
}
static struct xfs_dir2_leaf_entry *
xfs_dir3_leaf_ents_p(struct xfs_dir2_leaf *lp)
{
return ((struct xfs_dir3_leaf *)lp)->__ents;
}
static void
xfs_dir2_leaf_hdr_from_disk(
struct xfs_dir3_icleaf_hdr *to,
struct xfs_dir2_leaf *from)
{
to->forw = be32_to_cpu(from->hdr.info.forw);
to->back = be32_to_cpu(from->hdr.info.back);
to->magic = be16_to_cpu(from->hdr.info.magic);
to->count = be16_to_cpu(from->hdr.count);
to->stale = be16_to_cpu(from->hdr.stale);
ASSERT(to->magic == XFS_DIR2_LEAF1_MAGIC ||
to->magic == XFS_DIR2_LEAFN_MAGIC);
}
static void
xfs_dir2_leaf_hdr_to_disk(
struct xfs_dir2_leaf *to,
struct xfs_dir3_icleaf_hdr *from)
{
ASSERT(from->magic == XFS_DIR2_LEAF1_MAGIC ||
from->magic == XFS_DIR2_LEAFN_MAGIC);
to->hdr.info.forw = cpu_to_be32(from->forw);
to->hdr.info.back = cpu_to_be32(from->back);
to->hdr.info.magic = cpu_to_be16(from->magic);
to->hdr.count = cpu_to_be16(from->count);
to->hdr.stale = cpu_to_be16(from->stale);
}
static void
xfs_dir3_leaf_hdr_from_disk(
struct xfs_dir3_icleaf_hdr *to,
struct xfs_dir2_leaf *from)
{
struct xfs_dir3_leaf_hdr *hdr3 = (struct xfs_dir3_leaf_hdr *)from;
to->forw = be32_to_cpu(hdr3->info.hdr.forw);
to->back = be32_to_cpu(hdr3->info.hdr.back);
to->magic = be16_to_cpu(hdr3->info.hdr.magic);
to->count = be16_to_cpu(hdr3->count);
to->stale = be16_to_cpu(hdr3->stale);
ASSERT(to->magic == XFS_DIR3_LEAF1_MAGIC ||
to->magic == XFS_DIR3_LEAFN_MAGIC);
}
static void
xfs_dir3_leaf_hdr_to_disk(
struct xfs_dir2_leaf *to,
struct xfs_dir3_icleaf_hdr *from)
{
struct xfs_dir3_leaf_hdr *hdr3 = (struct xfs_dir3_leaf_hdr *)to;
ASSERT(from->magic == XFS_DIR3_LEAF1_MAGIC ||
from->magic == XFS_DIR3_LEAFN_MAGIC);
hdr3->info.hdr.forw = cpu_to_be32(from->forw);
hdr3->info.hdr.back = cpu_to_be32(from->back);
hdr3->info.hdr.magic = cpu_to_be16(from->magic);
hdr3->count = cpu_to_be16(from->count);
hdr3->stale = cpu_to_be16(from->stale);
}
/*
* Directory/Attribute Node block operations
*/
static struct xfs_da_node_entry *
xfs_da2_node_tree_p(struct xfs_da_intnode *dap)
{
return dap->__btree;
}
static struct xfs_da_node_entry *
xfs_da3_node_tree_p(struct xfs_da_intnode *dap)
{
return ((struct xfs_da3_intnode *)dap)->__btree;
}
static void
xfs_da2_node_hdr_from_disk(
struct xfs_da3_icnode_hdr *to,
struct xfs_da_intnode *from)
{
ASSERT(from->hdr.info.magic == cpu_to_be16(XFS_DA_NODE_MAGIC));
to->forw = be32_to_cpu(from->hdr.info.forw);
to->back = be32_to_cpu(from->hdr.info.back);
to->magic = be16_to_cpu(from->hdr.info.magic);
to->count = be16_to_cpu(from->hdr.__count);
to->level = be16_to_cpu(from->hdr.__level);
}
static void
xfs_da2_node_hdr_to_disk(
struct xfs_da_intnode *to,
struct xfs_da3_icnode_hdr *from)
{
ASSERT(from->magic == XFS_DA_NODE_MAGIC);
to->hdr.info.forw = cpu_to_be32(from->forw);
to->hdr.info.back = cpu_to_be32(from->back);
to->hdr.info.magic = cpu_to_be16(from->magic);
to->hdr.__count = cpu_to_be16(from->count);
to->hdr.__level = cpu_to_be16(from->level);
}
static void
xfs_da3_node_hdr_from_disk(
struct xfs_da3_icnode_hdr *to,
struct xfs_da_intnode *from)
{
struct xfs_da3_node_hdr *hdr3 = (struct xfs_da3_node_hdr *)from;
ASSERT(from->hdr.info.magic == cpu_to_be16(XFS_DA3_NODE_MAGIC));
to->forw = be32_to_cpu(hdr3->info.hdr.forw);
to->back = be32_to_cpu(hdr3->info.hdr.back);
to->magic = be16_to_cpu(hdr3->info.hdr.magic);
to->count = be16_to_cpu(hdr3->__count);
to->level = be16_to_cpu(hdr3->__level);
}
static void
xfs_da3_node_hdr_to_disk(
struct xfs_da_intnode *to,
struct xfs_da3_icnode_hdr *from)
{
struct xfs_da3_node_hdr *hdr3 = (struct xfs_da3_node_hdr *)to;
ASSERT(from->magic == XFS_DA3_NODE_MAGIC);
hdr3->info.hdr.forw = cpu_to_be32(from->forw);
hdr3->info.hdr.back = cpu_to_be32(from->back);
hdr3->info.hdr.magic = cpu_to_be16(from->magic);
hdr3->__count = cpu_to_be16(from->count);
hdr3->__level = cpu_to_be16(from->level);
}
/*
* Directory free space block operations
*/
static int
xfs_dir2_free_max_bests(struct xfs_da_geometry *geo)
{
return (geo->blksize - sizeof(struct xfs_dir2_free_hdr)) /
sizeof(xfs_dir2_data_off_t);
}
static __be16 *
xfs_dir2_free_bests_p(struct xfs_dir2_free *free)
{
return (__be16 *)((char *)free + sizeof(struct xfs_dir2_free_hdr));
}
/*
* Convert data space db to the corresponding free db.
*/
static xfs_dir2_db_t
xfs_dir2_db_to_fdb(struct xfs_da_geometry *geo, xfs_dir2_db_t db)
{
return xfs_dir2_byte_to_db(geo, XFS_DIR2_FREE_OFFSET) +
(db / xfs_dir2_free_max_bests(geo));
}
/*
* Convert data space db to the corresponding index in a free db.
*/
static int
xfs_dir2_db_to_fdindex(struct xfs_da_geometry *geo, xfs_dir2_db_t db)
{
return db % xfs_dir2_free_max_bests(geo);
}
static int
xfs_dir3_free_max_bests(struct xfs_da_geometry *geo)
{
return (geo->blksize - sizeof(struct xfs_dir3_free_hdr)) /
sizeof(xfs_dir2_data_off_t);
}
static __be16 *
xfs_dir3_free_bests_p(struct xfs_dir2_free *free)
{
return (__be16 *)((char *)free + sizeof(struct xfs_dir3_free_hdr));
}
/*
* Convert data space db to the corresponding free db.
*/
static xfs_dir2_db_t
xfs_dir3_db_to_fdb(struct xfs_da_geometry *geo, xfs_dir2_db_t db)
{
return xfs_dir2_byte_to_db(geo, XFS_DIR2_FREE_OFFSET) +
(db / xfs_dir3_free_max_bests(geo));
}
/*
* Convert data space db to the corresponding index in a free db.
*/
static int
xfs_dir3_db_to_fdindex(struct xfs_da_geometry *geo, xfs_dir2_db_t db)
{
return db % xfs_dir3_free_max_bests(geo);
}
static void
xfs_dir2_free_hdr_from_disk(
struct xfs_dir3_icfree_hdr *to,
struct xfs_dir2_free *from)
{
to->magic = be32_to_cpu(from->hdr.magic);
to->firstdb = be32_to_cpu(from->hdr.firstdb);
to->nvalid = be32_to_cpu(from->hdr.nvalid);
to->nused = be32_to_cpu(from->hdr.nused);
ASSERT(to->magic == XFS_DIR2_FREE_MAGIC);
}
static void
xfs_dir2_free_hdr_to_disk(
struct xfs_dir2_free *to,
struct xfs_dir3_icfree_hdr *from)
{
ASSERT(from->magic == XFS_DIR2_FREE_MAGIC);
to->hdr.magic = cpu_to_be32(from->magic);
to->hdr.firstdb = cpu_to_be32(from->firstdb);
to->hdr.nvalid = cpu_to_be32(from->nvalid);
to->hdr.nused = cpu_to_be32(from->nused);
}
static void
xfs_dir3_free_hdr_from_disk(
struct xfs_dir3_icfree_hdr *to,
struct xfs_dir2_free *from)
{
struct xfs_dir3_free_hdr *hdr3 = (struct xfs_dir3_free_hdr *)from;
to->magic = be32_to_cpu(hdr3->hdr.magic);
to->firstdb = be32_to_cpu(hdr3->firstdb);
to->nvalid = be32_to_cpu(hdr3->nvalid);
to->nused = be32_to_cpu(hdr3->nused);
ASSERT(to->magic == XFS_DIR3_FREE_MAGIC);
}
static void
xfs_dir3_free_hdr_to_disk(
struct xfs_dir2_free *to,
struct xfs_dir3_icfree_hdr *from)
{
struct xfs_dir3_free_hdr *hdr3 = (struct xfs_dir3_free_hdr *)to;
ASSERT(from->magic == XFS_DIR3_FREE_MAGIC);
hdr3->hdr.magic = cpu_to_be32(from->magic);
hdr3->firstdb = cpu_to_be32(from->firstdb);
hdr3->nvalid = cpu_to_be32(from->nvalid);
hdr3->nused = cpu_to_be32(from->nused);
}
static const struct xfs_dir_ops xfs_dir2_ops = {
.sf_entsize = xfs_dir2_sf_entsize,
.sf_nextentry = xfs_dir2_sf_nextentry,
.sf_get_ftype = xfs_dir2_sfe_get_ftype,
.sf_put_ftype = xfs_dir2_sfe_put_ftype,
.sf_get_ino = xfs_dir2_sfe_get_ino,
.sf_put_ino = xfs_dir2_sfe_put_ino,
.sf_get_parent_ino = xfs_dir2_sf_get_parent_ino,
.sf_put_parent_ino = xfs_dir2_sf_put_parent_ino,
.data_entsize = xfs_dir2_data_entsize,
.data_get_ftype = xfs_dir2_data_get_ftype,
.data_put_ftype = xfs_dir2_data_put_ftype,
.data_entry_tag_p = xfs_dir2_data_entry_tag_p,
.data_bestfree_p = xfs_dir2_data_bestfree_p,
.data_dot_offset = sizeof(struct xfs_dir2_data_hdr),
.data_dotdot_offset = sizeof(struct xfs_dir2_data_hdr) +
XFS_DIR2_DATA_ENTSIZE(1),
.data_first_offset = sizeof(struct xfs_dir2_data_hdr) +
XFS_DIR2_DATA_ENTSIZE(1) +
XFS_DIR2_DATA_ENTSIZE(2),
.data_entry_offset = sizeof(struct xfs_dir2_data_hdr),
.data_dot_entry_p = xfs_dir2_data_dot_entry_p,
.data_dotdot_entry_p = xfs_dir2_data_dotdot_entry_p,
.data_first_entry_p = xfs_dir2_data_first_entry_p,
.data_entry_p = xfs_dir2_data_entry_p,
.data_unused_p = xfs_dir2_data_unused_p,
.leaf_hdr_size = sizeof(struct xfs_dir2_leaf_hdr),
.leaf_hdr_to_disk = xfs_dir2_leaf_hdr_to_disk,
.leaf_hdr_from_disk = xfs_dir2_leaf_hdr_from_disk,
.leaf_max_ents = xfs_dir2_max_leaf_ents,
.leaf_ents_p = xfs_dir2_leaf_ents_p,
.node_hdr_size = sizeof(struct xfs_da_node_hdr),
.node_hdr_to_disk = xfs_da2_node_hdr_to_disk,
.node_hdr_from_disk = xfs_da2_node_hdr_from_disk,
.node_tree_p = xfs_da2_node_tree_p,
.free_hdr_size = sizeof(struct xfs_dir2_free_hdr),
.free_hdr_to_disk = xfs_dir2_free_hdr_to_disk,
.free_hdr_from_disk = xfs_dir2_free_hdr_from_disk,
.free_max_bests = xfs_dir2_free_max_bests,
.free_bests_p = xfs_dir2_free_bests_p,
.db_to_fdb = xfs_dir2_db_to_fdb,
.db_to_fdindex = xfs_dir2_db_to_fdindex,
};
static const struct xfs_dir_ops xfs_dir2_ftype_ops = {
.sf_entsize = xfs_dir3_sf_entsize,
.sf_nextentry = xfs_dir3_sf_nextentry,
.sf_get_ftype = xfs_dir3_sfe_get_ftype,
.sf_put_ftype = xfs_dir3_sfe_put_ftype,
.sf_get_ino = xfs_dir3_sfe_get_ino,
.sf_put_ino = xfs_dir3_sfe_put_ino,
.sf_get_parent_ino = xfs_dir2_sf_get_parent_ino,
.sf_put_parent_ino = xfs_dir2_sf_put_parent_ino,
.data_entsize = xfs_dir3_data_entsize,
.data_get_ftype = xfs_dir3_data_get_ftype,
.data_put_ftype = xfs_dir3_data_put_ftype,
.data_entry_tag_p = xfs_dir3_data_entry_tag_p,
.data_bestfree_p = xfs_dir2_data_bestfree_p,
.data_dot_offset = sizeof(struct xfs_dir2_data_hdr),
.data_dotdot_offset = sizeof(struct xfs_dir2_data_hdr) +
XFS_DIR3_DATA_ENTSIZE(1),
.data_first_offset = sizeof(struct xfs_dir2_data_hdr) +
XFS_DIR3_DATA_ENTSIZE(1) +
XFS_DIR3_DATA_ENTSIZE(2),
.data_entry_offset = sizeof(struct xfs_dir2_data_hdr),
.data_dot_entry_p = xfs_dir2_data_dot_entry_p,
.data_dotdot_entry_p = xfs_dir2_ftype_data_dotdot_entry_p,
.data_first_entry_p = xfs_dir2_ftype_data_first_entry_p,
.data_entry_p = xfs_dir2_data_entry_p,
.data_unused_p = xfs_dir2_data_unused_p,
.leaf_hdr_size = sizeof(struct xfs_dir2_leaf_hdr),
.leaf_hdr_to_disk = xfs_dir2_leaf_hdr_to_disk,
.leaf_hdr_from_disk = xfs_dir2_leaf_hdr_from_disk,
.leaf_max_ents = xfs_dir2_max_leaf_ents,
.leaf_ents_p = xfs_dir2_leaf_ents_p,
.node_hdr_size = sizeof(struct xfs_da_node_hdr),
.node_hdr_to_disk = xfs_da2_node_hdr_to_disk,
.node_hdr_from_disk = xfs_da2_node_hdr_from_disk,
.node_tree_p = xfs_da2_node_tree_p,
.free_hdr_size = sizeof(struct xfs_dir2_free_hdr),
.free_hdr_to_disk = xfs_dir2_free_hdr_to_disk,
.free_hdr_from_disk = xfs_dir2_free_hdr_from_disk,
.free_max_bests = xfs_dir2_free_max_bests,
.free_bests_p = xfs_dir2_free_bests_p,
.db_to_fdb = xfs_dir2_db_to_fdb,
.db_to_fdindex = xfs_dir2_db_to_fdindex,
};
static const struct xfs_dir_ops xfs_dir3_ops = {
.sf_entsize = xfs_dir3_sf_entsize,
.sf_nextentry = xfs_dir3_sf_nextentry,
.sf_get_ftype = xfs_dir3_sfe_get_ftype,
.sf_put_ftype = xfs_dir3_sfe_put_ftype,
.sf_get_ino = xfs_dir3_sfe_get_ino,
.sf_put_ino = xfs_dir3_sfe_put_ino,
.sf_get_parent_ino = xfs_dir2_sf_get_parent_ino,
.sf_put_parent_ino = xfs_dir2_sf_put_parent_ino,
.data_entsize = xfs_dir3_data_entsize,
.data_get_ftype = xfs_dir3_data_get_ftype,
.data_put_ftype = xfs_dir3_data_put_ftype,
.data_entry_tag_p = xfs_dir3_data_entry_tag_p,
.data_bestfree_p = xfs_dir3_data_bestfree_p,
.data_dot_offset = sizeof(struct xfs_dir3_data_hdr),
.data_dotdot_offset = sizeof(struct xfs_dir3_data_hdr) +
XFS_DIR3_DATA_ENTSIZE(1),
.data_first_offset = sizeof(struct xfs_dir3_data_hdr) +
XFS_DIR3_DATA_ENTSIZE(1) +
XFS_DIR3_DATA_ENTSIZE(2),
.data_entry_offset = sizeof(struct xfs_dir3_data_hdr),
.data_dot_entry_p = xfs_dir3_data_dot_entry_p,
.data_dotdot_entry_p = xfs_dir3_data_dotdot_entry_p,
.data_first_entry_p = xfs_dir3_data_first_entry_p,
.data_entry_p = xfs_dir3_data_entry_p,
.data_unused_p = xfs_dir3_data_unused_p,
.leaf_hdr_size = sizeof(struct xfs_dir3_leaf_hdr),
.leaf_hdr_to_disk = xfs_dir3_leaf_hdr_to_disk,
.leaf_hdr_from_disk = xfs_dir3_leaf_hdr_from_disk,
.leaf_max_ents = xfs_dir3_max_leaf_ents,
.leaf_ents_p = xfs_dir3_leaf_ents_p,
.node_hdr_size = sizeof(struct xfs_da3_node_hdr),
.node_hdr_to_disk = xfs_da3_node_hdr_to_disk,
.node_hdr_from_disk = xfs_da3_node_hdr_from_disk,
.node_tree_p = xfs_da3_node_tree_p,
.free_hdr_size = sizeof(struct xfs_dir3_free_hdr),
.free_hdr_to_disk = xfs_dir3_free_hdr_to_disk,
.free_hdr_from_disk = xfs_dir3_free_hdr_from_disk,
.free_max_bests = xfs_dir3_free_max_bests,
.free_bests_p = xfs_dir3_free_bests_p,
.db_to_fdb = xfs_dir3_db_to_fdb,
.db_to_fdindex = xfs_dir3_db_to_fdindex,
};
static const struct xfs_dir_ops xfs_dir2_nondir_ops = {
.node_hdr_size = sizeof(struct xfs_da_node_hdr),
.node_hdr_to_disk = xfs_da2_node_hdr_to_disk,
.node_hdr_from_disk = xfs_da2_node_hdr_from_disk,
.node_tree_p = xfs_da2_node_tree_p,
};
static const struct xfs_dir_ops xfs_dir3_nondir_ops = {
.node_hdr_size = sizeof(struct xfs_da3_node_hdr),
.node_hdr_to_disk = xfs_da3_node_hdr_to_disk,
.node_hdr_from_disk = xfs_da3_node_hdr_from_disk,
.node_tree_p = xfs_da3_node_tree_p,
};
/*
* Return the ops structure according to the current config. If we are passed
* an inode, then that overrides the default config we use which is based on
* feature bits.
*/
const struct xfs_dir_ops *
xfs_dir_get_ops(
struct xfs_mount *mp,
struct xfs_inode *dp)
{
if (dp)
return dp->d_ops;
if (mp->m_dir_inode_ops)
return mp->m_dir_inode_ops;
if (xfs_sb_version_hascrc(&mp->m_sb))
return &xfs_dir3_ops;
if (xfs_sb_version_hasftype(&mp->m_sb))
return &xfs_dir2_ftype_ops;
return &xfs_dir2_ops;
}
const struct xfs_dir_ops *
xfs_nondir_get_ops(
struct xfs_mount *mp,
struct xfs_inode *dp)
{
if (dp)
return dp->d_ops;
if (mp->m_nondir_inode_ops)
return mp->m_nondir_inode_ops;
if (xfs_sb_version_hascrc(&mp->m_sb))
return &xfs_dir3_nondir_ops;
return &xfs_dir2_nondir_ops;
}
Reference in New Issue View Git Blame Copy Permalink