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[XFS] Add parameters to xfs_bmapi() and xfs_bunmapi() to have them report

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the range spanned by modifications to the in-core extent map.  Add
XFS_BUNMAPI() and XFS_SWAP_EXTENTS() macros that call xfs_bunmapi() and
xfs_swap_extents() via the ioops vector. Change all calls that may modify
the in-core extent map for the data fork to go through the ioops vector. 
This allows a cache of extent map data to be kept in sync.

SGI-PV: 947615
SGI-Modid: xfs-linux-melb:xfs-kern:209226a

Signed-off-by: Olaf Weber <olaf@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
This commit is contained in:
Olaf Weber
2006-06-09 14:48:12 +10:00
committed by Nathan Scott
parent 128e6ced24
commit 3e57ecf640
19 changed files with 437 additions and 166 deletions
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23
fs/xfs/xfs_mount.h
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@@ -63,6 +63,8 @@ struct xfs_perag;
struct xfs_iocore;
struct xfs_bmbt_irec;
struct xfs_bmap_free;
struct xfs_extdelta;
struct xfs_swapext;
extern struct vfsops xfs_vfsops;
extern struct vnodeops xfs_vnodeops;
@@ -194,7 +196,12 @@ 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_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,
@@ -214,10 +221,13 @@ 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 vfs *);
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;
@@ -230,13 +240,17 @@ typedef struct xfs_ioops {
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(vfsp, args, flags) \
(*(mp)->m_io_ops.xfs_ioinit)(vfsp, args, flags)
#define XFS_BMAPI(mp, trans,io,bno,len,f,first,tot,mval,nmap,flist) \
#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)
(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)
@@ -266,6 +280,9 @@ typedef struct xfs_ioops {
(*(mp)->m_io_ops.xfs_size_func)((io)->io_obj)
#define XFS_IODONE(vfsp) \
(*(mp)->m_io_ops.xfs_iodone)(vfsp)
#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