xfs: change the xfs_iext_insert / xfs_iext_remove

Change the xfs_iext_insert / xfs_iext_remove prototypes to pass more
information which will allow pushing the trace points from the callers
into those functions.  This includes folding the whichfork information
into the state variable to minimize the addition stack footprint.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>

4 files changed, 38 insertions, 26 deletions

diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index 6154ca030724..5874098ca9cf 100644
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -592,7 +592,9 @@ xfs_bmap_add_extent(
         if (nextents == 0) {
                 XFS_BMAP_TRACE_INSERT("insert empty", ip, 0, 1, new, NULL,
                         whichfork);
-                xfs_iext_insert(ifp, 0, 1, new);
+                xfs_iext_insert(ip, 0, 1, new,
+                                whichfork == XFS_ATTR_FORK ? BMAP_ATTRFORK : 0);
+
                 ASSERT(cur == NULL);
                 ifp->if_lastex = 0;
                 if (!isnullstartblock(new->br_startblock)) {
@@ -849,7 +851,7 @@ xfs_bmap_add_extent_delay_real(
                 XFS_BMAP_TRACE_POST_UPDATE("LF|RF|LC|RC", ip, idx - 1,
                         XFS_DATA_FORK);
                 XFS_BMAP_TRACE_DELETE("LF|RF|LC|RC", ip, idx, 2, XFS_DATA_FORK);
-                xfs_iext_remove(ifp, idx, 2);
+                xfs_iext_remove(ip, idx, 2, state);
                 ip->i_df.if_lastex = idx - 1;
                 ip->i_d.di_nextents--;
                 if (cur == NULL)
@@ -895,7 +897,7 @@ xfs_bmap_add_extent_delay_real(
                         XFS_DATA_FORK);
                 ip->i_df.if_lastex = idx - 1;
                 XFS_BMAP_TRACE_DELETE("LF|RF|LC", ip, idx, 1, XFS_DATA_FORK);
-                xfs_iext_remove(ifp, idx, 1);
+                xfs_iext_remove(ip, idx, 1, state);
                 if (cur == NULL)
                         rval = XFS_ILOG_DEXT;
                 else {
@@ -930,7 +932,7 @@ xfs_bmap_add_extent_delay_real(
                 XFS_BMAP_TRACE_POST_UPDATE("LF|RF|RC", ip, idx, XFS_DATA_FORK);
                 ip->i_df.if_lastex = idx;
                 XFS_BMAP_TRACE_DELETE("LF|RF|RC", ip, idx + 1, 1, XFS_DATA_FORK);
-                xfs_iext_remove(ifp, idx + 1, 1);
+                xfs_iext_remove(ip, idx + 1, 1, state);
                 if (cur == NULL)
                         rval = XFS_ILOG_DEXT;
                 else {
@@ -1037,7 +1039,7 @@ xfs_bmap_add_extent_delay_real(
                 xfs_bmbt_set_blockcount(ep, temp);
                 XFS_BMAP_TRACE_INSERT("LF", ip, idx, 1, new, NULL,
                         XFS_DATA_FORK);
-                xfs_iext_insert(ifp, idx, 1, new);
+                xfs_iext_insert(ip, idx, 1, new, state);
                 ip->i_df.if_lastex = idx;
                 ip->i_d.di_nextents++;
                 if (cur == NULL)
@@ -1127,7 +1129,7 @@ xfs_bmap_add_extent_delay_real(
                 xfs_bmbt_set_blockcount(ep, temp);
                 XFS_BMAP_TRACE_INSERT("RF", ip, idx + 1, 1, new, NULL,
                         XFS_DATA_FORK);
-                xfs_iext_insert(ifp, idx + 1, 1, new);
+                xfs_iext_insert(ip, idx + 1, 1, new, state);
                 ip->i_df.if_lastex = idx + 1;
                 ip->i_d.di_nextents++;
                 if (cur == NULL)
@@ -1182,7 +1184,7 @@ xfs_bmap_add_extent_delay_real(
                 r[1].br_blockcount = temp2;
                 XFS_BMAP_TRACE_INSERT("0", ip, idx + 1, 2, &r[0], &r[1],
                         XFS_DATA_FORK);
-                xfs_iext_insert(ifp, idx + 1, 2, &r[0]);
+                xfs_iext_insert(ip, idx + 1, 2, &r[0], state);
                 ip->i_df.if_lastex = idx + 1;
                 ip->i_d.di_nextents++;
                 if (cur == NULL)
@@ -1397,7 +1399,7 @@ xfs_bmap_add_extent_unwritten_real(
                 XFS_BMAP_TRACE_POST_UPDATE("LF|RF|LC|RC", ip, idx - 1,
                         XFS_DATA_FORK);
                 XFS_BMAP_TRACE_DELETE("LF|RF|LC|RC", ip, idx, 2, XFS_DATA_FORK);
-                xfs_iext_remove(ifp, idx, 2);
+                xfs_iext_remove(ip, idx, 2, state);
                 ip->i_df.if_lastex = idx - 1;
                 ip->i_d.di_nextents -= 2;
                 if (cur == NULL)
@@ -1447,7 +1449,7 @@ xfs_bmap_add_extent_unwritten_real(
                         XFS_DATA_FORK);
                 ip->i_df.if_lastex = idx - 1;
                 XFS_BMAP_TRACE_DELETE("LF|RF|LC", ip, idx, 1, XFS_DATA_FORK);
-                xfs_iext_remove(ifp, idx, 1);
+                xfs_iext_remove(ip, idx, 1, state);
                 ip->i_d.di_nextents--;
                 if (cur == NULL)
                         rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
@@ -1490,7 +1492,7 @@ xfs_bmap_add_extent_unwritten_real(
                         XFS_DATA_FORK);
                 ip->i_df.if_lastex = idx;
                 XFS_BMAP_TRACE_DELETE("LF|RF|RC", ip, idx + 1, 1, XFS_DATA_FORK);
-                xfs_iext_remove(ifp, idx + 1, 1);
+                xfs_iext_remove(ip, idx + 1, 1, state);
                 ip->i_d.di_nextents--;
                 if (cur == NULL)
                         rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
@@ -1616,7 +1618,7 @@ xfs_bmap_add_extent_unwritten_real(
                 XFS_BMAP_TRACE_POST_UPDATE("LF", ip, idx, XFS_DATA_FORK);
                 XFS_BMAP_TRACE_INSERT("LF", ip, idx, 1, new, NULL,
                         XFS_DATA_FORK);
-                xfs_iext_insert(ifp, idx, 1, new);
+                xfs_iext_insert(ip, idx, 1, new, state);
                 ip->i_df.if_lastex = idx;
                 ip->i_d.di_nextents++;
                 if (cur == NULL)
@@ -1702,7 +1704,7 @@ xfs_bmap_add_extent_unwritten_real(
                 XFS_BMAP_TRACE_POST_UPDATE("RF", ip, idx, XFS_DATA_FORK);
                 XFS_BMAP_TRACE_INSERT("RF", ip, idx + 1, 1, new, NULL,
                         XFS_DATA_FORK);
-                xfs_iext_insert(ifp, idx + 1, 1, new);
+                xfs_iext_insert(ip, idx + 1, 1, new, state);
                 ip->i_df.if_lastex = idx + 1;
                 ip->i_d.di_nextents++;
                 if (cur == NULL)
@@ -1752,7 +1754,7 @@ xfs_bmap_add_extent_unwritten_real(
                 r[1].br_state = oldext;
                 XFS_BMAP_TRACE_INSERT("0", ip, idx + 1, 2, &r[0], &r[1],
                         XFS_DATA_FORK);
-                xfs_iext_insert(ifp, idx + 1, 2, &r[0]);
+                xfs_iext_insert(ip, idx + 1, 2, &r[0], state);
                 ip->i_df.if_lastex = idx + 1;
                 ip->i_d.di_nextents += 2;
                 if (cur == NULL)
@@ -1918,7 +1920,7 @@ xfs_bmap_add_extent_hole_delay(
                 XFS_BMAP_TRACE_POST_UPDATE("LC|RC", ip, idx - 1,
                         XFS_DATA_FORK);
                 XFS_BMAP_TRACE_DELETE("LC|RC", ip, idx, 1, XFS_DATA_FORK);
-                xfs_iext_remove(ifp, idx, 1);
+                xfs_iext_remove(ip, idx, 1, state);
                 ip->i_df.if_lastex = idx - 1;
                 /* DELTA: Two in-core extents were replaced by one. */
                 temp2 = temp;
@@ -1977,7 +1979,7 @@ xfs_bmap_add_extent_hole_delay(
                 oldlen = newlen = 0;
                 XFS_BMAP_TRACE_INSERT("0", ip, idx, 1, new, NULL,
                         XFS_DATA_FORK);
-                xfs_iext_insert(ifp, idx, 1, new);
+                xfs_iext_insert(ip, idx, 1, new, state);
                 ip->i_df.if_lastex = idx;
                 /* DELTA: A new in-core extent was added in a hole. */
                 temp2 = new->br_blockcount;
@@ -2033,6 +2035,9 @@ xfs_bmap_add_extent_hole_real(
         ep = xfs_iext_get_ext(ifp, idx);
         state = 0;
 
+        if (whichfork == XFS_ATTR_FORK)
+                state |= BMAP_ATTRFORK;
+
         /*
          * Check and set flags if this segment has a left neighbor.
          */
@@ -2094,7 +2099,7 @@ xfs_bmap_add_extent_hole_real(
                 XFS_BMAP_TRACE_POST_UPDATE("LC|RC", ip, idx - 1,
                         whichfork);
                 XFS_BMAP_TRACE_DELETE("LC|RC", ip, idx, 1, whichfork);
-                xfs_iext_remove(ifp, idx, 1);
+                xfs_iext_remove(ip, idx, 1, state);
                 ifp->if_lastex = idx - 1;
                 XFS_IFORK_NEXT_SET(ip, whichfork,
                         XFS_IFORK_NEXTENTS(ip, whichfork) - 1);
@@ -2205,7 +2210,7 @@ xfs_bmap_add_extent_hole_real(
                  * Insert a new entry.
                  */
                 XFS_BMAP_TRACE_INSERT("0", ip, idx, 1, new, NULL, whichfork);
-                xfs_iext_insert(ifp, idx, 1, new);
+                xfs_iext_insert(ip, idx, 1, new, state);
                 ifp->if_lastex = idx;
                 XFS_IFORK_NEXT_SET(ip, whichfork,
                         XFS_IFORK_NEXTENTS(ip, whichfork) + 1);
@@ -3147,7 +3152,8 @@ xfs_bmap_del_extent(
                  * Matches the whole extent.  Delete the entry.
                  */
                 XFS_BMAP_TRACE_DELETE("3", ip, idx, 1, whichfork);
-                xfs_iext_remove(ifp, idx, 1);
+                xfs_iext_remove(ip, idx, 1,
+                                whichfork == XFS_ATTR_FORK ? BMAP_ATTRFORK : 0);
                 ifp->if_lastex = idx;
                 if (delay)
                         break;
@@ -3317,7 +3323,8 @@ xfs_bmap_del_extent(
                 XFS_BMAP_TRACE_POST_UPDATE("0", ip, idx, whichfork);
                 XFS_BMAP_TRACE_INSERT("0", ip, idx + 1, 1, &new, NULL,
                         whichfork);
-                xfs_iext_insert(ifp, idx + 1, 1, &new);
+                xfs_iext_insert(ip, idx + 1, 1, &new,
+                                whichfork == XFS_ATTR_FORK ? BMAP_ATTRFORK : 0);
                 ifp->if_lastex = idx + 1;
                 break;
         }
diff --git a/fs/xfs/xfs_bmap.h b/fs/xfs/xfs_bmap.h
index f1ae5a1519c3..3e84e8e8d79e 100644
--- a/fs/xfs/xfs_bmap.h
+++ b/fs/xfs/xfs_bmap.h
@@ -146,6 +146,7 @@ typedef struct xfs_bmalloca {
 #define BMAP_RIGHT_DELAY        (1 << 5)
 #define BMAP_LEFT_VALID         (1 << 6)
 #define BMAP_RIGHT_VALID        (1 << 7)
+#define BMAP_ATTRFORK           (1 << 8)
 
 #if defined(__KERNEL__) && defined(XFS_BMAP_TRACE)
 /*
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index b92a4fa2a0a1..614acd508b35 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -3300,11 +3300,13 @@ xfs_iext_get_ext(
  */
 void
 xfs_iext_insert(
-        xfs_ifork_t     *ifp,           /* inode fork pointer */
+        xfs_inode_t     *ip,            /* incore inode pointer */
         xfs_extnum_t    idx,            /* starting index of new items */
         xfs_extnum_t    count,          /* number of inserted items */
-        xfs_bmbt_irec_t *new)           /* items to insert */
+        xfs_bmbt_irec_t *new,           /* items to insert */
+        int             state)          /* type of extent conversion */
 {
+        xfs_ifork_t     *ifp = (state & BMAP_ATTRFORK) ? ip->i_afp : &ip->i_df;
         xfs_extnum_t    i;              /* extent record index */
 
         ASSERT(ifp->if_flags & XFS_IFEXTENTS);
@@ -3549,10 +3551,12 @@ xfs_iext_add_indirect_multi(
  */
 void
 xfs_iext_remove(
-        xfs_ifork_t     *ifp,           /* inode fork pointer */
+        xfs_inode_t     *ip,            /* incore inode pointer */
         xfs_extnum_t    idx,            /* index to begin removing exts */
-        int             ext_diff)       /* number of extents to remove */
+        int             ext_diff,       /* number of extents to remove */
+        int             state)          /* type of extent conversion */
 {
+        xfs_ifork_t     *ifp = (state & BMAP_ATTRFORK) ? ip->i_afp : &ip->i_df;
         xfs_extnum_t    nextents;       /* number of extents in file */
         int             new_size;       /* size of extents after removal */
 
diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index 41555de1d1db..946a8ca5d9c5 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -577,11 +577,11 @@ 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(xfs_ifork_t *, xfs_extnum_t, xfs_extnum_t,
-                                xfs_bmbt_irec_t *);
+void            xfs_iext_insert(xfs_inode_t *, 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(xfs_ifork_t *, xfs_extnum_t, int);
+void            xfs_iext_remove(xfs_inode_t *, 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);