struct xfs_bmap_free;
struct xfs_bmbt_irec;
struct xfs_bmbt_block;
-struct xfs_ext_attr;
struct xfs_inode;
struct xfs_inode_log_item;
struct xfs_mount;
size_t xd_length;
} xfs_dio_t;
+typedef struct dm_attrs_s {
+ __uint32_t da_dmevmask; /* DMIG event mask */
+ __uint16_t da_dmstate; /* DMIG state info */
+ __uint16_t da_pad; /* DMIG extra padding */
+} dm_attrs_t;
typedef struct xfs_iocore {
void *io_obj; /* pointer to container
* inode or dcxvn structure */
struct xfs_mount *io_mount; /* fs mount struct ptr */
- mrlock_t *io_lock; /* inode lock */
+#ifdef DEBUG
+ mrlock_t *io_lock; /* inode IO lock */
mrlock_t *io_iolock; /* inode IO lock */
- sema_t *io_flock; /* inode flush lock */
+#endif
/* I/O state */
xfs_fsize_t io_new_size; /* sz when write completes */
- unsigned int io_readio_blocks; /* read buffer size */
- unsigned int io_writeio_blocks; /* write buffer size */
- uchar_t io_readio_log; /* log2 of read buffer size */
- uchar_t io_writeio_log; /* log2 of write buffer size */
- uchar_t io_max_io_log; /* max r/w io value */
- int io_queued_bufs; /* count of xfsd queued bufs*/
/* Miscellaneous state. */
unsigned int io_flags; /* IO related flags */
/* DMAPI state */
- __uint32_t io_dmevmask; /* DMIG event mask */
- __uint16_t io_dmstate; /* DMIG state info */
+ dm_attrs_t io_dmattrs;
+
} xfs_iocore_t;
+#define io_dmevmask io_dmattrs.da_dmevmask
+#define io_dmstate io_dmattrs.da_dmstate
+
#define XFS_IO_INODE(io) ((xfs_inode_t *) ((io)->io_obj))
#define XFS_IO_DCXVN(io) ((dcxvn_t *) ((io)->io_obj))
#define XFS_IOCORE_ISXFS 0x01
#define XFS_IOCORE_ISCXFS 0x02
#define XFS_IOCORE_RT 0x04
-#define XFS_IOCORE_UIOSZ 0x08
#define IO_IS_XFS(io) ((io)->io_flags & XFS_IOCORE_ISXFS)
-/*
- * Clear out the read-ahead state in the in-core inode.
- * We actually only need to clear i_next_offset and
- * i_last_req_sz to get the effect of making all the
- * read ahead state unusable.
- */
-#define XFS_INODE_CLEAR_READ_AHEAD(io)
-
-
/*
* xfs_iocore prototypes
*/
extern void xfs_iocore_inode_init(struct xfs_inode *);
extern void xfs_iocore_inode_reinit(struct xfs_inode *);
-extern void xfs_iocore_reset(xfs_iocore_t *);
/*
/* Inode location stuff */
xfs_ino_t i_ino; /* inode number (agno/agino)*/
xfs_daddr_t i_blkno; /* blkno of inode buffer */
- dev_t i_dev; /* dev for this inode */
ushort i_len; /* len of inode buffer */
ushort i_boffset; /* off of inode in buffer */
mrlock_t i_lock; /* inode lock */
mrlock_t i_iolock; /* inode IO lock */
sema_t i_flock; /* inode flush lock */
- unsigned int i_pincount; /* inode pin count */
- sv_t i_pinsema; /* inode pin sema */
- lock_t i_ipinlock; /* inode pinning mutex */
+ atomic_t i_pincount; /* inode pin count */
+ wait_queue_head_t i_ipin_wait; /* inode pinning wait queue */
struct xfs_inode **i_refcache; /* ptr to entry in ref cache */
struct xfs_inode *i_release; /* inode to unref */
/* Miscellaneous state. */
unsigned short i_flags; /* see defined flags below */
- unsigned short i_update_core; /* timestamps/size is dirty */
- unsigned short i_update_size; /* di_size field is dirty */
+ unsigned char i_update_core; /* timestamps/size is dirty */
+ unsigned char i_update_size; /* di_size field is dirty */
unsigned int i_gen; /* generation count */
unsigned int i_delayed_blks; /* count of delay alloc blks */
- struct xfs_ext_attr *i_ext_attr; /* Critical ext attributes */
- void *i_ilock_ra; /* current ilock ret addr */
xfs_dinode_core_t i_d; /* most of ondisk inode */
xfs_chashlist_t *i_chash; /* cluster hash list header */
#define XFS_ILOCK_EXCL 0x004
#define XFS_ILOCK_SHARED 0x008
#define XFS_IUNLOCK_NONOTIFY 0x010
-#define XFS_IOLOCK_NESTED 0x020
#define XFS_EXTENT_TOKEN_RD 0x040
#define XFS_SIZE_TOKEN_RD 0x080
#define XFS_EXTSIZE_RD (XFS_EXTENT_TOKEN_RD|XFS_SIZE_TOKEN_RD)
#define XFS_LOCK_MASK \
(XFS_IOLOCK_EXCL | XFS_IOLOCK_SHARED | XFS_ILOCK_EXCL | \
- XFS_IOLOCK_NESTED | \
XFS_ILOCK_SHARED | XFS_EXTENT_TOKEN_RD | XFS_SIZE_TOKEN_RD | \
XFS_WILLLEND)
#define XFS_ITRUNC_MAYBE 0x2
/*
- * Maximum file size.
- * if XFS_BIG_FILES 2^63 - 1 (largest positive value of xfs_fsize_t)
+ * if XFS_BIG_FILES, 2^(31+PAGE_SHIFT) - 1 (due to linux page cache),
* else 2^40 - 1 (40=31+9) (might be an int holding a block #)
- * Note, we allow seeks to this offset, although you can't read or write.
* For the not XFS_BIG_FILES case, the value could be 1 higher but we don't
* do that, for symmetry.
+ *
+ * NOTE: XFS itself can handle 2^63 - 1 (largest positive value of xfs_fsize_t)
+ * but Linux can't go above 2^(31+PAGE_SHIFT)-1: the Linux VM uses a 32 bit
+ * signed variable to index cache data, so 2^31 * PAGE_SIZE is as big as
+ * you can go.
*/
#if XFS_BIG_FILES
-#define XFS_MAX_FILE_OFFSET ((long long)((1ULL<<63)-1ULL))
+#define XFS_MAX_FILE_OFFSET ((long long)((1ULL<<(31+PAGE_SHIFT))-1ULL))
#else
#define XFS_MAX_FILE_OFFSET ((1LL<<40)-1LL)
#endif
uint, xfs_inode_t **, xfs_daddr_t);
int xfs_vn_iget(vfs_t *, struct vnode *, xfs_ino_t);
void xfs_iput(xfs_inode_t *, uint);
+void xfs_iput_new(xfs_inode_t *, uint);
void xfs_ilock(xfs_inode_t *, uint);
int xfs_ilock_nowait(xfs_inode_t *, uint);
void xfs_iunlock(xfs_inode_t *, uint);
void xfs_iroot_realloc(xfs_inode_t *, int, int);
void xfs_ipin(xfs_inode_t *);
void xfs_iunpin(xfs_inode_t *);
-unsigned int xfs_ipincount(xfs_inode_t *);
int xfs_iextents_copy(xfs_inode_t *, xfs_bmbt_rec_32_t *, int);
int xfs_iflush(xfs_inode_t *, uint);
int xfs_iflush_all(struct xfs_mount *, int);
xfs_inode_t *xfs_get_inode(dev_t, xfs_ino_t);
void xfs_lock_inodes(xfs_inode_t **, int, int, uint);
+#define xfs_ipincount(ip) ((unsigned int) atomic_read(&ip->i_pincount))
+
+
#ifdef DEBUG
void xfs_isize_check(struct xfs_mount *, xfs_inode_t *, xfs_fsize_t);
projects / thirdparty / xfsprogs-dev.git / blobdiff