linux/fs/xfs/xfs_icache.h
Linus Torvalds e0ea4045bc xfs: update #2 for v3.12-rc1
Here we have defrag support for v5 superblock, a number of bugfixes and
 a cleanup or two.
 
 - defrag support for CRC filesystems
 - fix endian worning in xlog_recover_get_buf_lsn
 - fixes for sparse warnings
 - fix for assert in xfs_dir3_leaf_hdr_from_disk
 - fix for log recovery of remote symlinks
 - fix for log recovery of btree root splits
 - fixes formemory allocation failures with ACLs
 - fix for assert in xfs_buf_item_relse
 - fix for assert in xfs_inode_buf_verify
 - fix an assignment in an assert that should be a test in
   xfs_bmbt_change_owner
 - remove dead code in xlog_recover_inode_pass2
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Merge tag 'xfs-for-linus-v3.12-rc1-2' of git://oss.sgi.com/xfs/xfs

Pull xfs update #2 from Ben Myers:
 "Here we have defrag support for v5 superblock, a number of bugfixes
  and a cleanup or two.

   - defrag support for CRC filesystems
   - fix endian worning in xlog_recover_get_buf_lsn
   - fixes for sparse warnings
   - fix for assert in xfs_dir3_leaf_hdr_from_disk
   - fix for log recovery of remote symlinks
   - fix for log recovery of btree root splits
   - fixes formemory allocation failures with ACLs
   - fix for assert in xfs_buf_item_relse
   - fix for assert in xfs_inode_buf_verify
   - fix an assignment in an assert that should be a test in
     xfs_bmbt_change_owner
   - remove dead code in xlog_recover_inode_pass2"

* tag 'xfs-for-linus-v3.12-rc1-2' of git://oss.sgi.com/xfs/xfs:
  xfs: remove dead code from xlog_recover_inode_pass2
  xfs: = vs == typo in ASSERT()
  xfs: don't assert fail on bad inode numbers
  xfs: aborted buf items can be in the AIL.
  xfs: factor all the kmalloc-or-vmalloc fallback allocations
  xfs: fix memory allocation failures with ACLs
  xfs: ensure we copy buffer type in da btree root splits
  xfs: set remote symlink buffer type for recovery
  xfs: recovery of swap extents operations for CRC filesystems
  xfs: swap extents operations for CRC filesystems
  xfs: check magic numbers in dir3 leaf verifier first
  xfs: fix some minor sparse warnings
  xfs: fix endian warning in xlog_recover_get_buf_lsn()
2013-09-12 16:13:41 -07:00

107 lines
3.1 KiB
C

/*
* Copyright (c) 2000-2006 Silicon Graphics, Inc.
* All Rights Reserved.
*
* This program 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.
*
* This program is distributed in the hope that it would 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, write the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef XFS_SYNC_H
#define XFS_SYNC_H 1
struct xfs_mount;
struct xfs_perag;
struct xfs_eofblocks {
__u32 eof_flags;
kuid_t eof_uid;
kgid_t eof_gid;
prid_t eof_prid;
__u64 eof_min_file_size;
};
#define SYNC_WAIT 0x0001 /* wait for i/o to complete */
#define SYNC_TRYLOCK 0x0002 /* only try to lock inodes */
/*
* Flags for xfs_iget()
*/
#define XFS_IGET_CREATE 0x1
#define XFS_IGET_UNTRUSTED 0x2
#define XFS_IGET_DONTCACHE 0x4
int xfs_iget(struct xfs_mount *mp, struct xfs_trans *tp, xfs_ino_t ino,
uint flags, uint lock_flags, xfs_inode_t **ipp);
/* recovery needs direct inode allocation capability */
struct xfs_inode * xfs_inode_alloc(struct xfs_mount *mp, xfs_ino_t ino);
void xfs_inode_free(struct xfs_inode *ip);
void xfs_reclaim_worker(struct work_struct *work);
int xfs_reclaim_inodes(struct xfs_mount *mp, int mode);
int xfs_reclaim_inodes_count(struct xfs_mount *mp);
long xfs_reclaim_inodes_nr(struct xfs_mount *mp, int nr_to_scan);
void xfs_inode_set_reclaim_tag(struct xfs_inode *ip);
void xfs_inode_set_eofblocks_tag(struct xfs_inode *ip);
void xfs_inode_clear_eofblocks_tag(struct xfs_inode *ip);
int xfs_icache_free_eofblocks(struct xfs_mount *, struct xfs_eofblocks *);
void xfs_eofblocks_worker(struct work_struct *);
int xfs_inode_ag_iterator(struct xfs_mount *mp,
int (*execute)(struct xfs_inode *ip, struct xfs_perag *pag,
int flags, void *args),
int flags, void *args);
int xfs_inode_ag_iterator_tag(struct xfs_mount *mp,
int (*execute)(struct xfs_inode *ip, struct xfs_perag *pag,
int flags, void *args),
int flags, void *args, int tag);
static inline int
xfs_fs_eofblocks_from_user(
struct xfs_fs_eofblocks *src,
struct xfs_eofblocks *dst)
{
if (src->eof_version != XFS_EOFBLOCKS_VERSION)
return EINVAL;
if (src->eof_flags & ~XFS_EOF_FLAGS_VALID)
return EINVAL;
if (memchr_inv(&src->pad32, 0, sizeof(src->pad32)) ||
memchr_inv(src->pad64, 0, sizeof(src->pad64)))
return EINVAL;
dst->eof_flags = src->eof_flags;
dst->eof_prid = src->eof_prid;
dst->eof_min_file_size = src->eof_min_file_size;
dst->eof_uid = INVALID_UID;
if (src->eof_flags & XFS_EOF_FLAGS_UID) {
dst->eof_uid = make_kuid(current_user_ns(), src->eof_uid);
if (!uid_valid(dst->eof_uid))
return EINVAL;
}
dst->eof_gid = INVALID_GID;
if (src->eof_flags & XFS_EOF_FLAGS_GID) {
dst->eof_gid = make_kgid(current_user_ns(), src->eof_gid);
if (!gid_valid(dst->eof_gid))
return EINVAL;
}
return 0;
}
#endif