+// SPDX-License-Identifier: GPL-2.0
/*
- * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
+ * Copyright (c) 2000-2005 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_INODE_H__
-#define __XFS_INODE_H__
-
-struct posix_acl;
-struct xfs_dinode;
-struct xfs_inode;
-
-/*
- * Fork identifiers.
- */
-#define XFS_DATA_FORK 0
-#define XFS_ATTR_FORK 1
-
-/*
- * The following xfs_ext_irec_t struct introduces a second (top) level
- * to the in-core extent allocation scheme. These structs are allocated
- * in a contiguous block, creating an indirection array where each entry
- * (irec) contains a pointer to a buffer of in-core extent records which
- * it manages. Each extent buffer is 4k in size, since 4k is the system
- * page size on Linux i386 and systems with larger page sizes don't seem
- * to gain much, if anything, by using their native page size as the
- * extent buffer size. Also, using 4k extent buffers everywhere provides
- * a consistent interface for CXFS across different platforms.
- *
- * There is currently no limit on the number of irec's (extent lists)
- * allowed, so heavily fragmented files may require an indirection array
- * which spans multiple system pages of memory. The number of extents
- * which would require this amount of contiguous memory is very large
- * and should not cause problems in the foreseeable future. However,
- * if the memory needed for the contiguous array ever becomes a problem,
- * it is possible that a third level of indirection may be required.
- */
-typedef struct xfs_ext_irec {
- xfs_bmbt_rec_host_t *er_extbuf; /* block of extent records */
- xfs_extnum_t er_extoff; /* extent offset in file */
- xfs_extnum_t er_extcount; /* number of extents in page/block */
-} xfs_ext_irec_t;
-
-/*
- * File incore extent information, present for each of data & attr forks.
- */
-#define XFS_IEXT_BUFSZ 4096
-#define XFS_LINEAR_EXTS (XFS_IEXT_BUFSZ / (uint)sizeof(xfs_bmbt_rec_t))
-#define XFS_INLINE_EXTS 2
-#define XFS_INLINE_DATA 32
-typedef struct xfs_ifork {
- int if_bytes; /* bytes in if_u1 */
- int if_real_bytes; /* bytes allocated in if_u1 */
- struct xfs_btree_block *if_broot; /* file's incore btree root */
- short if_broot_bytes; /* bytes allocated for root */
- unsigned char if_flags; /* per-fork flags */
- union {
- xfs_bmbt_rec_host_t *if_extents;/* linear map file exts */
- xfs_ext_irec_t *if_ext_irec; /* irec map file exts */
- char *if_data; /* inline file data */
- } if_u1;
- union {
- xfs_bmbt_rec_host_t if_inline_ext[XFS_INLINE_EXTS];
- /* very small file extents */
- char if_inline_data[XFS_INLINE_DATA];
- /* very small file data */
- xfs_dev_t if_rdev; /* dev number if special */
- uuid_t if_uuid; /* mount point value */
- } if_u2;
-} xfs_ifork_t;
-
-/*
- * Inode location information. Stored in the inode and passed to
- * xfs_imap_to_bp() to get a buffer and dinode for a given inode.
- */
-struct xfs_imap {
- xfs_daddr_t im_blkno; /* starting BB of inode chunk */
- ushort im_len; /* length in BBs of inode chunk */
- ushort im_boffset; /* inode offset in block in bytes */
-};
-
-/*
- * This is the xfs in-core inode structure.
- * Most of the on-disk inode is embedded in the i_d field.
- *
- * The extent pointers/inline file space, however, are managed
- * separately. The memory for this information is pointed to by
- * the if_u1 unions depending on the type of the data.
- * This is used to linearize the array of extents for fast in-core
- * access. This is used until the file's number of extents
- * surpasses XFS_MAX_INCORE_EXTENTS, at which point all extent pointers
- * are accessed through the buffer cache.
- *
- * Other state kept in the in-core inode is used for identification,
- * locking, transactional updating, etc of the inode.
- *
- * Generally, we do not want to hold the i_rlock while holding the
- * i_ilock. Hierarchy is i_iolock followed by i_rlock.
- *
- * xfs_iptr_t contains all the inode fields up to and including the
- * i_mnext and i_mprev fields, it is used as a marker in the inode
- * chain off the mount structure by xfs_sync calls.
- */
-
-typedef struct xfs_ictimestamp {
- __int32_t t_sec; /* timestamp seconds */
- __int32_t t_nsec; /* timestamp nanoseconds */
-} xfs_ictimestamp_t;
-
-/*
- * NOTE: This structure must be kept identical to struct xfs_dinode
- * in xfs_dinode.h except for the endianness annotations.
- */
-typedef struct xfs_icdinode {
- __uint16_t di_magic; /* inode magic # = XFS_DINODE_MAGIC */
- __uint16_t di_mode; /* mode and type of file */
- __int8_t di_version; /* inode version */
- __int8_t di_format; /* format of di_c data */
- __uint16_t di_onlink; /* old number of links to file */
- __uint32_t di_uid; /* owner's user id */
- __uint32_t di_gid; /* owner's group id */
- __uint32_t di_nlink; /* number of links to file */
- __uint16_t di_projid_lo; /* lower part of owner's project id */
- __uint16_t di_projid_hi; /* higher part of owner's project id */
- __uint8_t di_pad[6]; /* unused, zeroed space */
- __uint16_t di_flushiter; /* incremented on flush */
- xfs_ictimestamp_t di_atime; /* time last accessed */
- xfs_ictimestamp_t di_mtime; /* time last modified */
- xfs_ictimestamp_t di_ctime; /* time created/inode modified */
- xfs_fsize_t di_size; /* number of bytes in file */
- xfs_drfsbno_t di_nblocks; /* # of direct & btree blocks used */
- xfs_extlen_t di_extsize; /* basic/minimum extent size for file */
- xfs_extnum_t di_nextents; /* number of extents in data fork */
- xfs_aextnum_t di_anextents; /* number of extents in attribute fork*/
- __uint8_t di_forkoff; /* attr fork offs, <<3 for 64b align */
- __int8_t di_aformat; /* format of attr fork's data */
- __uint32_t di_dmevmask; /* DMIG event mask */
- __uint16_t di_dmstate; /* DMIG state info */
- __uint16_t di_flags; /* random flags, XFS_DIFLAG_... */
- __uint32_t di_gen; /* generation number */
-
- /* di_next_unlinked is the only non-core field in the old dinode */
- __be32 di_next_unlinked;/* agi unlinked list ptr */
-
- /* start of the extended dinode, writable fields */
- __uint32_t di_crc; /* CRC of the inode */
- __uint64_t di_changecount; /* number of attribute changes */
- xfs_lsn_t di_lsn; /* flush sequence */
- __uint64_t di_flags2; /* more random flags */
- __uint8_t di_pad2[16]; /* more padding for future expansion */
-
- /* fields only written to during inode creation */
- xfs_ictimestamp_t di_crtime; /* time created */
- xfs_ino_t di_ino; /* inode number */
- uuid_t di_uuid; /* UUID of the filesystem */
-
- /* structure must be padded to 64 bit alignment */
-} xfs_icdinode_t;
-
-static inline uint xfs_icdinode_size(int version)
-{
- if (version == 3)
- return sizeof(struct xfs_icdinode);
- return offsetof(struct xfs_icdinode, di_next_unlinked);
-}
-
-/*
- * Flags for xfs_ichgtime().
- */
-#define XFS_ICHGTIME_MOD 0x1 /* data fork modification timestamp */
-#define XFS_ICHGTIME_CHG 0x2 /* inode field change timestamp */
-#define XFS_ICHGTIME_CREATE 0x4 /* inode create timestamp */
-
-/*
- * Per-fork incore inode flags.
- */
-#define XFS_IFINLINE 0x01 /* Inline data is read in */
-#define XFS_IFEXTENTS 0x02 /* All extent pointers are read in */
-#define XFS_IFBROOT 0x04 /* i_broot points to the bmap b-tree root */
-#define XFS_IFEXTIREC 0x08 /* Indirection array of extent blocks */
-
-/*
- * Fork handling.
*/
-#define XFS_IFORK_Q(ip) ((ip)->i_d.di_forkoff != 0)
-#define XFS_IFORK_BOFF(ip) ((int)((ip)->i_d.di_forkoff << 3))
-
-#define XFS_IFORK_PTR(ip,w) \
- ((w) == XFS_DATA_FORK ? \
- &(ip)->i_df : \
- (ip)->i_afp)
-#define XFS_IFORK_DSIZE(ip) \
- (XFS_IFORK_Q(ip) ? \
- XFS_IFORK_BOFF(ip) : \
- XFS_LITINO((ip)->i_mount, (ip)->i_d.di_version))
-#define XFS_IFORK_ASIZE(ip) \
- (XFS_IFORK_Q(ip) ? \
- XFS_LITINO((ip)->i_mount, (ip)->i_d.di_version) - \
- XFS_IFORK_BOFF(ip) : \
- 0)
-#define XFS_IFORK_SIZE(ip,w) \
- ((w) == XFS_DATA_FORK ? \
- XFS_IFORK_DSIZE(ip) : \
- XFS_IFORK_ASIZE(ip))
-#define XFS_IFORK_FORMAT(ip,w) \
- ((w) == XFS_DATA_FORK ? \
- (ip)->i_d.di_format : \
- (ip)->i_d.di_aformat)
-#define XFS_IFORK_FMT_SET(ip,w,n) \
- ((w) == XFS_DATA_FORK ? \
- ((ip)->i_d.di_format = (n)) : \
- ((ip)->i_d.di_aformat = (n)))
-#define XFS_IFORK_NEXTENTS(ip,w) \
- ((w) == XFS_DATA_FORK ? \
- (ip)->i_d.di_nextents : \
- (ip)->i_d.di_anextents)
-#define XFS_IFORK_NEXT_SET(ip,w,n) \
- ((w) == XFS_DATA_FORK ? \
- ((ip)->i_d.di_nextents = (n)) : \
- ((ip)->i_d.di_anextents = (n)))
-#define XFS_IFORK_MAXEXT(ip, w) \
- (XFS_IFORK_SIZE(ip, w) / sizeof(xfs_bmbt_rec_t))
-
+#ifndef __XFS_INODE_H__
+#define __XFS_INODE_H__
-#ifdef __KERNEL__
+/* These match kernel side includes */
+#include "xfs_inode_buf.h"
+#include "xfs_inode_fork.h"
-struct xfs_buf;
-struct xfs_bmap_free;
-struct xfs_bmbt_irec;
-struct xfs_inode_log_item;
-struct xfs_mount;
struct xfs_trans;
-struct xfs_dquot;
+struct xfs_mount;
+struct xfs_inode_log_item;
+struct xfs_dir_ops;
+
+/*
+ * Inode interface. This fakes up a "VFS inode" to make the xfs_inode appear
+ * similar to the kernel which now is used tohold certain parts of the on-disk
+ * metadata.
+ */
+struct inode {
+ mode_t i_mode;
+ uint32_t i_nlink;
+ xfs_dev_t i_rdev; /* This actually holds xfs_dev_t */
+ uint32_t i_generation;
+ uint64_t i_version;
+ struct timespec i_atime;
+ struct timespec i_mtime;
+ struct timespec i_ctime;
+};
typedef struct xfs_inode {
- /* Inode linking and identification information. */
+ struct cache_node i_node;
struct xfs_mount *i_mount; /* fs mount struct ptr */
- struct xfs_dquot *i_udquot; /* user dquot */
- struct xfs_dquot *i_gdquot; /* group dquot */
-
- /* Inode location stuff */
- xfs_ino_t i_ino; /* inode number (agno/agino)*/
+ xfs_ino_t i_ino; /* inode number (agno/agino) */
struct xfs_imap i_imap; /* location for xfs_imap() */
-
- /* Extent information. */
- xfs_ifork_t *i_afp; /* attribute fork pointer */
- xfs_ifork_t i_df; /* data fork */
-
- /* Transaction and locking information. */
+ struct xfs_buftarg i_dev; /* dev for this inode */
+ struct xfs_ifork *i_afp; /* attribute fork pointer */
+ struct xfs_ifork *i_cowfp; /* copy on write extents */
+ struct xfs_ifork i_df; /* data fork */
+ struct xfs_trans *i_transp; /* ptr to owning transaction */
struct xfs_inode_log_item *i_itemp; /* logging information */
- mrlock_t i_lock; /* inode lock */
- mrlock_t i_iolock; /* inode IO lock */
- atomic_t i_pincount; /* inode pin count */
- spinlock_t i_flags_lock; /* inode i_flags lock */
- /* Miscellaneous state. */
- unsigned long i_flags; /* see defined flags below */
unsigned int i_delayed_blks; /* count of delay alloc blks */
+ struct xfs_icdinode i_d; /* most of ondisk inode */
- xfs_icdinode_t i_d; /* most of ondisk inode */
+ xfs_extnum_t i_cnextents; /* # of extents in cow fork */
+ unsigned int i_cformat; /* format of cow fork */
- /* VFS inode */
- struct inode i_vnode; /* embedded VFS inode */
+ xfs_fsize_t i_size; /* in-memory size */
+ const struct xfs_dir_ops *d_ops; /* directory ops vector */
+ struct xfs_ifork_ops *i_fork_ops; /* fork verifiers */
+ struct inode i_vnode;
} xfs_inode_t;
/* Convert from vfs inode to xfs inode */
return &ip->i_vnode;
}
-/*
- * For regular files we only update the on-disk filesize when actually
- * writing data back to disk. Until then only the copy in the VFS inode
- * is uptodate.
- */
-static inline xfs_fsize_t XFS_ISIZE(struct xfs_inode *ip)
+/* We only have i_size in the xfs inode in userspace */
+static inline loff_t i_size_read(struct inode *inode)
{
- if (S_ISREG(ip->i_d.di_mode))
- return i_size_read(VFS_I(ip));
- return ip->i_d.di_size;
+ return XFS_I(inode)->i_size;
}
/*
- * If this I/O goes past the on-disk inode size update it unless it would
- * be past the current in-core inode size.
+ * wrappers around the mode checks to simplify code
*/
-static inline xfs_fsize_t
-xfs_new_eof(struct xfs_inode *ip, xfs_fsize_t new_size)
-{
- xfs_fsize_t i_size = i_size_read(VFS_I(ip));
-
- if (new_size > i_size)
- new_size = i_size;
- return new_size > ip->i_d.di_size ? new_size : 0;
-}
-
-/*
- * i_flags helper functions
- */
-static inline void
-__xfs_iflags_set(xfs_inode_t *ip, unsigned short flags)
-{
- ip->i_flags |= flags;
-}
-
-static inline void
-xfs_iflags_set(xfs_inode_t *ip, unsigned short flags)
+static inline bool XFS_ISREG(struct xfs_inode *ip)
{
- spin_lock(&ip->i_flags_lock);
- __xfs_iflags_set(ip, flags);
- spin_unlock(&ip->i_flags_lock);
+ return S_ISREG(VFS_I(ip)->i_mode);
}
-static inline void
-xfs_iflags_clear(xfs_inode_t *ip, unsigned short flags)
+static inline bool XFS_ISDIR(struct xfs_inode *ip)
{
- spin_lock(&ip->i_flags_lock);
- ip->i_flags &= ~flags;
- spin_unlock(&ip->i_flags_lock);
+ return S_ISDIR(VFS_I(ip)->i_mode);
}
-static inline int
-__xfs_iflags_test(xfs_inode_t *ip, unsigned short flags)
-{
- return (ip->i_flags & flags);
-}
-
-static inline int
-xfs_iflags_test(xfs_inode_t *ip, unsigned short flags)
+/*
+ * For regular files we only update the on-disk filesize when actually
+ * writing data back to disk. Until then only the copy in the VFS inode
+ * is uptodate.
+ */
+static inline xfs_fsize_t XFS_ISIZE(struct xfs_inode *ip)
{
- int ret;
- spin_lock(&ip->i_flags_lock);
- ret = __xfs_iflags_test(ip, flags);
- spin_unlock(&ip->i_flags_lock);
- return ret;
+ if (XFS_ISREG(ip))
+ return ip->i_size;
+ return ip->i_d.di_size;
}
+#define XFS_IS_REALTIME_INODE(ip) ((ip)->i_d.di_flags & XFS_DIFLAG_REALTIME)
-static inline int
-xfs_iflags_test_and_clear(xfs_inode_t *ip, unsigned short flags)
+/* inode link counts */
+static inline void set_nlink(struct inode *inode, uint32_t nlink)
{
- int ret;
-
- spin_lock(&ip->i_flags_lock);
- ret = ip->i_flags & flags;
- if (ret)
- ip->i_flags &= ~flags;
- spin_unlock(&ip->i_flags_lock);
- return ret;
+ inode->i_nlink = nlink;
}
-
-static inline int
-xfs_iflags_test_and_set(xfs_inode_t *ip, unsigned short flags)
+static inline void inc_nlink(struct inode *inode)
{
- int ret;
-
- spin_lock(&ip->i_flags_lock);
- ret = ip->i_flags & flags;
- if (!ret)
- ip->i_flags |= flags;
- spin_unlock(&ip->i_flags_lock);
- return ret;
+ inode->i_nlink++;
}
/*
- * Project quota id helpers (previously projid was 16bit only
- * and using two 16bit values to hold new 32bit projid was chosen
- * to retain compatibility with "old" filesystems).
+ * Project quota id helpers (previously projid was 16bit only and using two
+ * 16bit values to hold new 32bit projid was chosen to retain compatibility with
+ * "old" filesystems).
+ *
+ * Copied here from xfs_inode.h because it has to be defined after the struct
+ * xfs_inode...
*/
static inline prid_t
-xfs_get_projid(struct xfs_inode *ip)
+xfs_get_projid(struct xfs_icdinode *id)
{
- return (prid_t)ip->i_d.di_projid_hi << 16 | ip->i_d.di_projid_lo;
+ return (prid_t)id->di_projid_hi << 16 | id->di_projid_lo;
}
static inline void
-xfs_set_projid(struct xfs_inode *ip,
- prid_t projid)
-{
- ip->i_d.di_projid_hi = (__uint16_t) (projid >> 16);
- ip->i_d.di_projid_lo = (__uint16_t) (projid & 0xffff);
-}
-
-/*
- * In-core inode flags.
- */
-#define XFS_IRECLAIM (1 << 0) /* started reclaiming this inode */
-#define XFS_ISTALE (1 << 1) /* inode has been staled */
-#define XFS_IRECLAIMABLE (1 << 2) /* inode can be reclaimed */
-#define XFS_INEW (1 << 3) /* inode has just been allocated */
-#define XFS_IFILESTREAM (1 << 4) /* inode is in a filestream dir. */
-#define XFS_ITRUNCATED (1 << 5) /* truncated down so flush-on-close */
-#define XFS_IDIRTY_RELEASE (1 << 6) /* dirty release already seen */
-#define __XFS_IFLOCK_BIT 7 /* inode is being flushed right now */
-#define XFS_IFLOCK (1 << __XFS_IFLOCK_BIT)
-#define __XFS_IPINNED_BIT 8 /* wakeup key for zero pin count */
-#define XFS_IPINNED (1 << __XFS_IPINNED_BIT)
-#define XFS_IDONTCACHE (1 << 9) /* don't cache the inode long term */
-
-/*
- * Per-lifetime flags need to be reset when re-using a reclaimable inode during
- * inode lookup. This prevents unintended behaviour on the new inode from
- * ocurring.
- */
-#define XFS_IRECLAIM_RESET_FLAGS \
- (XFS_IRECLAIMABLE | XFS_IRECLAIM | \
- XFS_IDIRTY_RELEASE | XFS_ITRUNCATED | \
- XFS_IFILESTREAM);
-
-/*
- * Synchronize processes attempting to flush the in-core inode back to disk.
- */
-
-extern void __xfs_iflock(struct xfs_inode *ip);
-
-static inline int xfs_iflock_nowait(struct xfs_inode *ip)
-{
- return !xfs_iflags_test_and_set(ip, XFS_IFLOCK);
-}
-
-static inline void xfs_iflock(struct xfs_inode *ip)
-{
- if (!xfs_iflock_nowait(ip))
- __xfs_iflock(ip);
-}
-
-static inline void xfs_ifunlock(struct xfs_inode *ip)
+xfs_set_projid(struct xfs_icdinode *id, prid_t projid)
{
- xfs_iflags_clear(ip, XFS_IFLOCK);
- smp_mb();
- wake_up_bit(&ip->i_flags, __XFS_IFLOCK_BIT);
+ id->di_projid_hi = (uint16_t) (projid >> 16);
+ id->di_projid_lo = (uint16_t) (projid & 0xffff);
}
-static inline int xfs_isiflocked(struct xfs_inode *ip)
+static inline bool xfs_is_reflink_inode(struct xfs_inode *ip)
{
- return xfs_iflags_test(ip, XFS_IFLOCK);
+ return ip->i_d.di_flags2 & XFS_DIFLAG2_REFLINK;
}
-/*
- * Flags for inode locking.
- * Bit ranges: 1<<1 - 1<<16-1 -- iolock/ilock modes (bitfield)
- * 1<<16 - 1<<32-1 -- lockdep annotation (integers)
- */
-#define XFS_IOLOCK_EXCL (1<<0)
-#define XFS_IOLOCK_SHARED (1<<1)
-#define XFS_ILOCK_EXCL (1<<2)
-#define XFS_ILOCK_SHARED (1<<3)
-
-#define XFS_LOCK_MASK (XFS_IOLOCK_EXCL | XFS_IOLOCK_SHARED \
- | XFS_ILOCK_EXCL | XFS_ILOCK_SHARED)
-
-#define XFS_LOCK_FLAGS \
- { XFS_IOLOCK_EXCL, "IOLOCK_EXCL" }, \
- { XFS_IOLOCK_SHARED, "IOLOCK_SHARED" }, \
- { XFS_ILOCK_EXCL, "ILOCK_EXCL" }, \
- { XFS_ILOCK_SHARED, "ILOCK_SHARED" }
-
-
-/*
- * Flags for lockdep annotations.
- *
- * XFS_LOCK_PARENT - for directory operations that require locking a
- * parent directory inode and a child entry inode. The parent gets locked
- * with this flag so it gets a lockdep subclass of 1 and the child entry
- * lock will have a lockdep subclass of 0.
- *
- * XFS_LOCK_RTBITMAP/XFS_LOCK_RTSUM - the realtime device bitmap and summary
- * inodes do not participate in the normal lock order, and thus have their
- * own subclasses.
- *
- * XFS_LOCK_INUMORDER - for locking several inodes at the some time
- * with xfs_lock_inodes(). This flag is used as the starting subclass
- * and each subsequent lock acquired will increment the subclass by one.
- * So the first lock acquired will have a lockdep subclass of 4, the
- * second lock will have a lockdep subclass of 5, and so on. It is
- * the responsibility of the class builder to shift this to the correct
- * portion of the lock_mode lockdep mask.
- */
-#define XFS_LOCK_PARENT 1
-#define XFS_LOCK_RTBITMAP 2
-#define XFS_LOCK_RTSUM 3
-#define XFS_LOCK_INUMORDER 4
-
-#define XFS_IOLOCK_SHIFT 16
-#define XFS_IOLOCK_PARENT (XFS_LOCK_PARENT << XFS_IOLOCK_SHIFT)
-
-#define XFS_ILOCK_SHIFT 24
-#define XFS_ILOCK_PARENT (XFS_LOCK_PARENT << XFS_ILOCK_SHIFT)
-#define XFS_ILOCK_RTBITMAP (XFS_LOCK_RTBITMAP << XFS_ILOCK_SHIFT)
-#define XFS_ILOCK_RTSUM (XFS_LOCK_RTSUM << XFS_ILOCK_SHIFT)
-
-#define XFS_IOLOCK_DEP_MASK 0x00ff0000
-#define XFS_ILOCK_DEP_MASK 0xff000000
-#define XFS_LOCK_DEP_MASK (XFS_IOLOCK_DEP_MASK | XFS_ILOCK_DEP_MASK)
-
-#define XFS_IOLOCK_DEP(flags) (((flags) & XFS_IOLOCK_DEP_MASK) >> XFS_IOLOCK_SHIFT)
-#define XFS_ILOCK_DEP(flags) (((flags) & XFS_ILOCK_DEP_MASK) >> XFS_ILOCK_SHIFT)
-
-/*
- * For multiple groups support: if S_ISGID bit is set in the parent
- * directory, group of new file is set to that of the parent, and
- * new subdirectory gets S_ISGID bit from parent.
- */
-#define XFS_INHERIT_GID(pip) \
- (((pip)->i_mount->m_flags & XFS_MOUNT_GRPID) || \
- ((pip)->i_d.di_mode & S_ISGID))
-
-
-/*
- * xfs_inode.c prototypes.
- */
-void xfs_ilock(xfs_inode_t *, uint);
-int xfs_ilock_nowait(xfs_inode_t *, uint);
-void xfs_iunlock(xfs_inode_t *, uint);
-void xfs_ilock_demote(xfs_inode_t *, uint);
-int xfs_isilocked(xfs_inode_t *, uint);
-uint xfs_ilock_map_shared(xfs_inode_t *);
-void xfs_iunlock_map_shared(xfs_inode_t *, uint);
-int xfs_ialloc(struct xfs_trans *, xfs_inode_t *, umode_t,
- xfs_nlink_t, xfs_dev_t, prid_t, int,
- struct xfs_buf **, xfs_inode_t **);
-
-uint xfs_ip2xflags(struct xfs_inode *);
-uint xfs_dic2xflags(struct xfs_dinode *);
-int xfs_ifree(struct xfs_trans *, xfs_inode_t *,
- struct xfs_bmap_free *);
-int xfs_itruncate_extents(struct xfs_trans **, struct xfs_inode *,
- int, xfs_fsize_t);
-int xfs_iunlink(struct xfs_trans *, xfs_inode_t *);
-
-void xfs_iext_realloc(xfs_inode_t *, int, int);
-void xfs_iunpin_wait(xfs_inode_t *);
-int xfs_iflush(struct xfs_inode *, struct xfs_buf **);
-void xfs_lock_inodes(xfs_inode_t **, int, uint);
-void xfs_lock_two_inodes(xfs_inode_t *, xfs_inode_t *, uint);
-
-xfs_extlen_t xfs_get_extsz_hint(struct xfs_inode *ip);
-
-#define IHOLD(ip) \
-do { \
- ASSERT(atomic_read(&VFS_I(ip)->i_count) > 0) ; \
- ihold(VFS_I(ip)); \
- trace_xfs_ihold(ip, _THIS_IP_); \
-} while (0)
-
-#define IRELE(ip) \
-do { \
- trace_xfs_irele(ip, _THIS_IP_); \
- iput(VFS_I(ip)); \
-} while (0)
-
-#endif /* __KERNEL__ */
-
-/*
- * Flags for xfs_iget()
- */
-#define XFS_IGET_CREATE 0x1
-#define XFS_IGET_UNTRUSTED 0x2
-#define XFS_IGET_DONTCACHE 0x4
-
-int xfs_imap_to_bp(struct xfs_mount *, struct xfs_trans *,
- struct xfs_imap *, struct xfs_dinode **,
- struct xfs_buf **, uint, uint);
-int xfs_iread(struct xfs_mount *, struct xfs_trans *,
- struct xfs_inode *, uint);
-void xfs_dinode_calc_crc(struct xfs_mount *, struct xfs_dinode *);
-void xfs_dinode_to_disk(struct xfs_dinode *,
- struct xfs_icdinode *);
-void xfs_idestroy_fork(struct xfs_inode *, int);
-void xfs_idata_realloc(struct xfs_inode *, int, int);
-void xfs_iroot_realloc(struct xfs_inode *, int, int);
-int xfs_iread_extents(struct xfs_trans *, struct xfs_inode *, int);
-int xfs_iextents_copy(struct xfs_inode *, xfs_bmbt_rec_t *, int);
-
-xfs_bmbt_rec_host_t *xfs_iext_get_ext(xfs_ifork_t *, xfs_extnum_t);
-void xfs_iext_insert(struct xfs_inode *, xfs_extnum_t, xfs_extnum_t,
- xfs_bmbt_irec_t *, int);
-void xfs_iext_add(xfs_ifork_t *, xfs_extnum_t, int);
-void xfs_iext_add_indirect_multi(xfs_ifork_t *, int, xfs_extnum_t, int);
-void xfs_iext_remove(struct xfs_inode *, xfs_extnum_t, int, int);
-void xfs_iext_remove_inline(xfs_ifork_t *, xfs_extnum_t, int);
-void xfs_iext_remove_direct(xfs_ifork_t *, xfs_extnum_t, int);
-void xfs_iext_remove_indirect(xfs_ifork_t *, xfs_extnum_t, int);
-void xfs_iext_realloc_direct(xfs_ifork_t *, int);
-void xfs_iext_direct_to_inline(xfs_ifork_t *, xfs_extnum_t);
-void xfs_iext_inline_to_direct(xfs_ifork_t *, int);
-void xfs_iext_destroy(xfs_ifork_t *);
-xfs_bmbt_rec_host_t *xfs_iext_bno_to_ext(xfs_ifork_t *, xfs_fileoff_t, int *);
-xfs_ext_irec_t *xfs_iext_bno_to_irec(xfs_ifork_t *, xfs_fileoff_t, int *);
-xfs_ext_irec_t *xfs_iext_idx_to_irec(xfs_ifork_t *, xfs_extnum_t *, int *, int);
-void xfs_iext_irec_init(xfs_ifork_t *);
-xfs_ext_irec_t *xfs_iext_irec_new(xfs_ifork_t *, int);
-void xfs_iext_irec_remove(xfs_ifork_t *, int);
-void xfs_iext_irec_compact(xfs_ifork_t *);
-void xfs_iext_irec_compact_pages(xfs_ifork_t *);
-void xfs_iext_irec_compact_full(xfs_ifork_t *);
-void xfs_iext_irec_update_extoffs(xfs_ifork_t *, int, int);
-bool xfs_can_free_eofblocks(struct xfs_inode *, bool);
+typedef struct cred {
+ uid_t cr_uid;
+ gid_t cr_gid;
+} cred_t;
-#define xfs_ipincount(ip) ((unsigned int) atomic_read(&ip->i_pincount))
+extern int libxfs_inode_alloc (struct xfs_trans **, struct xfs_inode *,
+ mode_t, nlink_t, xfs_dev_t, struct cred *,
+ struct fsxattr *, struct xfs_inode **);
+extern void libxfs_trans_inode_alloc_buf (struct xfs_trans *,
+ struct xfs_buf *);
-#if defined(DEBUG)
-void xfs_inobp_check(struct xfs_mount *, struct xfs_buf *);
-#else
-#define xfs_inobp_check(mp, bp)
-#endif /* DEBUG */
+extern void libxfs_trans_ichgtime(struct xfs_trans *,
+ struct xfs_inode *, int);
+extern int libxfs_iflush_int (struct xfs_inode *, struct xfs_buf *);
-extern struct kmem_zone *xfs_ifork_zone;
-extern struct kmem_zone *xfs_inode_zone;
-extern struct kmem_zone *xfs_ili_zone;
-extern const struct xfs_buf_ops xfs_inode_buf_ops;
+/* Inode Cache Interfaces */
+extern bool libxfs_inode_verify_forks(struct xfs_inode *ip);
+extern int libxfs_iget(struct xfs_mount *, struct xfs_trans *, xfs_ino_t,
+ uint, struct xfs_inode **,
+ struct xfs_ifork_ops *);
+extern void libxfs_irele(struct xfs_inode *ip);
-#endif /* __XFS_INODE_H__ */
+#endif /* __XFS_INODE_H__ */
projects / thirdparty / xfsprogs-dev.git / blobdiff