[XFS] kill unnessecary ioops indirection

Currently there is an indirection called ioops in the XFS data I/O path.
Various functions are called by functions pointers, but there is no
coherence in what this is for, and of course for XFS itself it's entirely
unused. This patch removes it instead and significantly reduces source and
binary size of XFS while making maintaince easier.

SGI-PV: 970841
SGI-Modid: xfs-linux-melb:xfs-kern:29737a

Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Tim Shimmin <tes@sgi.com>

1 files changed, 0 insertions, 101 deletions

diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index c618f7cb5f0e..f7b761f09ab4 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -196,105 +196,6 @@ typedef struct xfs_qmops {
 #define XFS_QM_QUOTACTL(mp, cmd, id, addr) \
         (*(mp)->m_qm_ops->xfs_quotactl)(mp, cmd, id, addr)
 
-
-/*
- * Prototypes and functions for I/O core modularization.
- */
-
-typedef int             (*xfs_ioinit_t)(struct xfs_mount *,
-                                struct xfs_mount_args *, int);
-typedef int             (*xfs_bmapi_t)(struct xfs_trans *, void *,
-                                xfs_fileoff_t, xfs_filblks_t, int,
-                                xfs_fsblock_t *, xfs_extlen_t,
-                                struct xfs_bmbt_irec *, int *,
-                                struct xfs_bmap_free *, struct xfs_extdelta *);
-typedef int             (*xfs_bunmapi_t)(struct xfs_trans *,
-                                void *, xfs_fileoff_t,
-                                xfs_filblks_t, int, xfs_extnum_t,
-                                xfs_fsblock_t *, struct xfs_bmap_free *,
-                                struct xfs_extdelta *, int *);
-typedef int             (*xfs_bmap_eof_t)(void *, xfs_fileoff_t, int, int *);
-typedef int             (*xfs_iomap_write_direct_t)(
-                                void *, xfs_off_t, size_t, int,
-                                struct xfs_bmbt_irec *, int *, int);
-typedef int             (*xfs_iomap_write_delay_t)(
-                                void *, xfs_off_t, size_t, int,
-                                struct xfs_bmbt_irec *, int *);
-typedef int             (*xfs_iomap_write_allocate_t)(
-                                void *, xfs_off_t, size_t,
-                                struct xfs_bmbt_irec *, int *);
-typedef int             (*xfs_iomap_write_unwritten_t)(
-                                void *, xfs_off_t, size_t);
-typedef uint            (*xfs_lck_map_shared_t)(void *);
-typedef void            (*xfs_lock_t)(void *, uint);
-typedef void            (*xfs_lock_demote_t)(void *, uint);
-typedef int             (*xfs_lock_nowait_t)(void *, uint);
-typedef void            (*xfs_unlk_t)(void *, unsigned int);
-typedef xfs_fsize_t     (*xfs_size_t)(void *);
-typedef xfs_fsize_t     (*xfs_iodone_t)(struct xfs_mount *);
-typedef int             (*xfs_swap_extents_t)(void *, void *,
-                                struct xfs_swapext*);
-
-typedef struct xfs_ioops {
-        xfs_ioinit_t                    xfs_ioinit;
-        xfs_bmapi_t                     xfs_bmapi_func;
-        xfs_bunmapi_t                   xfs_bunmapi_func;
-        xfs_bmap_eof_t                  xfs_bmap_eof_func;
-        xfs_iomap_write_direct_t        xfs_iomap_write_direct;
-        xfs_iomap_write_delay_t         xfs_iomap_write_delay;
-        xfs_iomap_write_allocate_t      xfs_iomap_write_allocate;
-        xfs_iomap_write_unwritten_t     xfs_iomap_write_unwritten;
-        xfs_lock_t                      xfs_ilock;
-        xfs_lck_map_shared_t            xfs_lck_map_shared;
-        xfs_lock_demote_t               xfs_ilock_demote;
-        xfs_lock_nowait_t               xfs_ilock_nowait;
-        xfs_unlk_t                      xfs_unlock;
-        xfs_size_t                      xfs_size_func;
-        xfs_iodone_t                    xfs_iodone;
-        xfs_swap_extents_t              xfs_swap_extents_func;
-} xfs_ioops_t;
-
-#define XFS_IOINIT(mp, args, flags) \
-        (*(mp)->m_io_ops.xfs_ioinit)(mp, args, flags)
-#define XFS_BMAPI(mp, trans,io,bno,len,f,first,tot,mval,nmap,flist,delta) \
-        (*(mp)->m_io_ops.xfs_bmapi_func) \
-                (trans,(io)->io_obj,bno,len,f,first,tot,mval,nmap,flist,delta)
-#define XFS_BUNMAPI(mp, trans,io,bno,len,f,nexts,first,flist,delta,done) \
-        (*(mp)->m_io_ops.xfs_bunmapi_func) \
-                (trans,(io)->io_obj,bno,len,f,nexts,first,flist,delta,done)
-#define XFS_BMAP_EOF(mp, io, endoff, whichfork, eof) \
-        (*(mp)->m_io_ops.xfs_bmap_eof_func) \
-                ((io)->io_obj, endoff, whichfork, eof)
-#define XFS_IOMAP_WRITE_DIRECT(mp, io, offset, count, flags, mval, nmap, found)\
-        (*(mp)->m_io_ops.xfs_iomap_write_direct) \
-                ((io)->io_obj, offset, count, flags, mval, nmap, found)
-#define XFS_IOMAP_WRITE_DELAY(mp, io, offset, count, flags, mval, nmap) \
-        (*(mp)->m_io_ops.xfs_iomap_write_delay) \
-                ((io)->io_obj, offset, count, flags, mval, nmap)
-#define XFS_IOMAP_WRITE_ALLOCATE(mp, io, offset, count, mval, nmap) \
-        (*(mp)->m_io_ops.xfs_iomap_write_allocate) \
-                ((io)->io_obj, offset, count, mval, nmap)
-#define XFS_IOMAP_WRITE_UNWRITTEN(mp, io, offset, count) \
-        (*(mp)->m_io_ops.xfs_iomap_write_unwritten) \
-                ((io)->io_obj, offset, count)
-#define XFS_LCK_MAP_SHARED(mp, io) \
-        (*(mp)->m_io_ops.xfs_lck_map_shared)((io)->io_obj)
-#define XFS_ILOCK(mp, io, mode) \
-        (*(mp)->m_io_ops.xfs_ilock)((io)->io_obj, mode)
-#define XFS_ILOCK_NOWAIT(mp, io, mode) \
-        (*(mp)->m_io_ops.xfs_ilock_nowait)((io)->io_obj, mode)
-#define XFS_IUNLOCK(mp, io, mode) \
-        (*(mp)->m_io_ops.xfs_unlock)((io)->io_obj, mode)
-#define XFS_ILOCK_DEMOTE(mp, io, mode) \
-        (*(mp)->m_io_ops.xfs_ilock_demote)((io)->io_obj, mode)
-#define XFS_SIZE(mp, io) \
-        (*(mp)->m_io_ops.xfs_size_func)((io)->io_obj)
-#define XFS_IODONE(mp) \
-        (*(mp)->m_io_ops.xfs_iodone)(mp)
-#define XFS_SWAP_EXTENTS(mp, io, tio, sxp) \
-        (*(mp)->m_io_ops.xfs_swap_extents_func) \
-                ((io)->io_obj, (tio)->io_obj, sxp)
-
 #ifdef HAVE_PERCPU_SB
 
 /*
@@ -423,7 +324,6 @@ typedef struct xfs_mount {
                                                  * hash table */
         struct xfs_dmops        *m_dm_ops;      /* vector of DMI ops */
         struct xfs_qmops        *m_qm_ops;      /* vector of XQM ops */
-        struct xfs_ioops        m_io_ops;       /* vector of I/O ops */
         atomic_t                m_active_trans; /* number trans frozen */
 #ifdef HAVE_PERCPU_SB
         xfs_icsb_cnts_t         *m_sb_cnts;     /* per-cpu superblock counters */
@@ -646,7 +546,6 @@ extern int	xfs_qmops_get(struct xfs_mount *, struct xfs_mount_args *);
 extern void     xfs_qmops_put(struct xfs_mount *);
 
 extern struct xfs_dmops xfs_dmcore_xfs;
-extern struct xfs_ioops xfs_iocore_xfs;
 
 extern int      xfs_init(void);
 extern void     xfs_cleanup(void);