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authorMandy Kirkconnell <alkirkco@sgi.com>2006-03-14 02:29:52 (GMT)
committerNathan Scott <nathans@sgi.com>2006-03-14 02:29:52 (GMT)
commit4eea22f01bb4fdba1aab4430c33adbe88d9d4985 (patch)
tree90e2088cd821e1013088682843e11d600f8c711a /fs/xfs/xfs_inode.h
parent9f989c9455aac417c34af9c505e6b169055251da (diff)
downloadlinux-4eea22f01bb4fdba1aab4430c33adbe88d9d4985.tar.xz
[XFS] 929045 567344 This mod re-organizes some of the in-core file extent
code to prepare for an upcoming mod which will introduce multi-level in-core extent allocations. Although the in-core extent management is using a new code path in this mod, the functionality remains the same. Major changes include: - Introduce 10 new subroutines which re-orgainze the existing code but do NOT change functionality: xfs_iext_get_ext() xfs_iext_insert() xfs_iext_add() xfs_iext_remove() xfs_iext_remove_inline() xfs_iext_remove_direct() xfs_iext_realloc_direct() xfs_iext_direct_to_inline() xfs_iext_inline_to_direct() xfs_iext_destroy() - Remove 2 subroutines (functionality moved to new subroutines above): xfs_iext_realloc() -replaced by xfs_iext_add() and xfs_iext_remove() xfs_bmap_insert_exlist() - replaced by xfs_iext_insert() xfs_bmap_delete_exlist() - replaced by xfs_iext_remove() - Replace all hard-coded (indexed) extent assignments with a call to xfs_iext_get_ext() - Replace all extent record pointer arithmetic (ep++, ep--, base + lastx,..) with calls to xfs_iext_get_ext() - Update comments to remove the idea of a single "extent list" and introduce "extent record" terminology instead SGI-PV: 928864 SGI-Modid: xfs-linux-melb:xfs-kern:207390a Signed-off-by: Mandy Kirkconnell <alkirkco@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_inode.h')
-rw-r--r--fs/xfs/xfs_inode.h18
1 files changed, 12 insertions, 6 deletions
diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index 1cfbcf1..740b73f 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -70,12 +70,6 @@ typedef struct xfs_ifork {
*/
#define XFS_IMAP_LOOKUP 0x1
-/*
- * Maximum number of extent pointers in if_u1.if_extents.
- */
-#define XFS_MAX_INCORE_EXTENTS 32768
-
-
#ifdef __KERNEL__
struct bhv_desc;
struct cred;
@@ -440,6 +434,18 @@ xfs_inode_t *xfs_vtoi(struct vnode *vp);
void xfs_synchronize_atime(xfs_inode_t *);
+xfs_bmbt_rec_t *xfs_iext_get_ext(xfs_ifork_t *, xfs_extnum_t);
+void xfs_iext_insert(xfs_ifork_t *, xfs_extnum_t, xfs_extnum_t,
+ xfs_bmbt_irec_t *);
+void xfs_iext_add(xfs_ifork_t *, xfs_extnum_t, int);
+void xfs_iext_remove(xfs_ifork_t *, xfs_extnum_t, 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_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 *);
+
#define xfs_ipincount(ip) ((unsigned int) atomic_read(&ip->i_pincount))
#ifdef DEBUG