]> pilppa.org Git - linux-2.6-omap-h63xx.git/blobdiff - fs/xfs/xfs_bmap.c
Fix missing exports for net/phy/mdio-bitbang.c
[linux-2.6-omap-h63xx.git] / fs / xfs / xfs_bmap.c
index 2e9b34b7344b4e81f268db68428e45e9363ef787..53c259f5a5af5e7b85fde5f73ee678670e692ad9 100644 (file)
@@ -323,13 +323,13 @@ xfs_bmap_trace_pre_update(
        int             whichfork);     /* data or attr fork */
 
 #define        XFS_BMAP_TRACE_DELETE(d,ip,i,c,w)       \
-       xfs_bmap_trace_delete(__FUNCTION__,d,ip,i,c,w)
+       xfs_bmap_trace_delete(__func__,d,ip,i,c,w)
 #define        XFS_BMAP_TRACE_INSERT(d,ip,i,c,r1,r2,w) \
-       xfs_bmap_trace_insert(__FUNCTION__,d,ip,i,c,r1,r2,w)
+       xfs_bmap_trace_insert(__func__,d,ip,i,c,r1,r2,w)
 #define        XFS_BMAP_TRACE_POST_UPDATE(d,ip,i,w)    \
-       xfs_bmap_trace_post_update(__FUNCTION__,d,ip,i,w)
+       xfs_bmap_trace_post_update(__func__,d,ip,i,w)
 #define        XFS_BMAP_TRACE_PRE_UPDATE(d,ip,i,w)     \
-       xfs_bmap_trace_pre_update(__FUNCTION__,d,ip,i,w)
+       xfs_bmap_trace_pre_update(__func__,d,ip,i,w)
 #else
 #define        XFS_BMAP_TRACE_DELETE(d,ip,i,c,w)
 #define        XFS_BMAP_TRACE_INSERT(d,ip,i,c,r1,r2,w)
@@ -2402,7 +2402,7 @@ xfs_bmap_extsize_align(
 
 #define XFS_ALLOC_GAP_UNITS    4
 
-STATIC int
+STATIC void
 xfs_bmap_adjacent(
        xfs_bmalloca_t  *ap)            /* bmap alloc argument struct */
 {
@@ -2548,7 +2548,6 @@ xfs_bmap_adjacent(
                        ap->rval = gotbno;
        }
 #undef ISVALID
-       return 0;
 }
 
 STATIC int
@@ -2830,11 +2829,11 @@ xfs_bmap_btalloc(
                args.prod = align;
                if ((args.mod = (xfs_extlen_t)do_mod(ap->off, args.prod)))
                        args.mod = (xfs_extlen_t)(args.prod - args.mod);
-       } else if (mp->m_sb.sb_blocksize >= NBPP) {
+       } else if (mp->m_sb.sb_blocksize >= PAGE_CACHE_SIZE) {
                args.prod = 1;
                args.mod = 0;
        } else {
-               args.prod = NBPP >> mp->m_sb.sb_blocklog;
+               args.prod = PAGE_CACHE_SIZE >> mp->m_sb.sb_blocklog;
                if ((args.mod = (xfs_extlen_t)(do_mod(ap->off, args.prod))))
                        args.mod = (xfs_extlen_t)(args.prod - args.mod);
        }
@@ -2969,7 +2968,7 @@ STATIC int
 xfs_bmap_alloc(
        xfs_bmalloca_t  *ap)            /* bmap alloc argument struct */
 {
-       if ((ap->ip->i_d.di_flags & XFS_DIFLAG_REALTIME) && ap->userdata)
+       if (XFS_IS_REALTIME_INODE(ap->ip) && ap->userdata)
                return xfs_bmap_rtalloc(ap);
        return xfs_bmap_btalloc(ap);
 }
@@ -3096,8 +3095,7 @@ xfs_bmap_del_extent(
                /*
                 * Realtime allocation.  Free it and record di_nblocks update.
                 */
-               if (whichfork == XFS_DATA_FORK &&
-                   (ip->i_d.di_flags & XFS_DIFLAG_REALTIME)) {
+               if (whichfork == XFS_DATA_FORK && XFS_IS_REALTIME_INODE(ip)) {
                        xfs_fsblock_t   bno;
                        xfs_filblks_t   len;
 
@@ -3956,7 +3954,6 @@ xfs_bmap_add_attrfork(
        xfs_bmap_free_t         flist;          /* freed extent records */
        xfs_mount_t             *mp;            /* mount structure */
        xfs_trans_t             *tp;            /* transaction pointer */
-       unsigned long           s;              /* spinlock spl value */
        int                     blks;           /* space reservation */
        int                     version = 1;    /* superblock attr version */
        int                     committed;      /* xaction was committed */
@@ -4049,24 +4046,24 @@ xfs_bmap_add_attrfork(
                xfs_trans_log_inode(tp, ip, logflags);
        if (error)
                goto error2;
-       if (!XFS_SB_VERSION_HASATTR(&mp->m_sb) ||
-          (!XFS_SB_VERSION_HASATTR2(&mp->m_sb) && version == 2)) {
+       if (!xfs_sb_version_hasattr(&mp->m_sb) ||
+          (!xfs_sb_version_hasattr2(&mp->m_sb) && version == 2)) {
                __int64_t sbfields = 0;
 
-               s = XFS_SB_LOCK(mp);
-               if (!XFS_SB_VERSION_HASATTR(&mp->m_sb)) {
-                       XFS_SB_VERSION_ADDATTR(&mp->m_sb);
+               spin_lock(&mp->m_sb_lock);
+               if (!xfs_sb_version_hasattr(&mp->m_sb)) {
+                       xfs_sb_version_addattr(&mp->m_sb);
                        sbfields |= XFS_SB_VERSIONNUM;
                }
-               if (!XFS_SB_VERSION_HASATTR2(&mp->m_sb) && version == 2) {
-                       XFS_SB_VERSION_ADDATTR2(&mp->m_sb);
+               if (!xfs_sb_version_hasattr2(&mp->m_sb) && version == 2) {
+                       xfs_sb_version_addattr2(&mp->m_sb);
                        sbfields |= (XFS_SB_VERSIONNUM | XFS_SB_FEATURES2);
                }
                if (sbfields) {
-                       XFS_SB_UNLOCK(mp, s);
+                       spin_unlock(&mp->m_sb_lock);
                        xfs_mod_sb(tp, sbfields);
                } else
-                       XFS_SB_UNLOCK(mp, s);
+                       spin_unlock(&mp->m_sb_lock);
        }
        if ((error = xfs_bmap_finish(&tp, &flist, &committed)))
                goto error2;
@@ -4077,7 +4074,6 @@ xfs_bmap_add_attrfork(
 error2:
        xfs_bmap_cancel(&flist);
 error1:
-       ASSERT(ismrlocked(&ip->i_lock,MR_UPDATE));
        xfs_iunlock(ip, XFS_ILOCK_EXCL);
 error0:
        xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_ABORT);
@@ -4156,16 +4152,21 @@ xfs_bmap_compute_maxlevels(
         * number of leaf entries, is controlled by the type of di_nextents
         * (a signed 32-bit number, xfs_extnum_t), or by di_anextents
         * (a signed 16-bit number, xfs_aextnum_t).
+        *
+        * Note that we can no longer assume that if we are in ATTR1 that
+        * the fork offset of all the inodes will be (m_attroffset >> 3)
+        * because we could have mounted with ATTR2 and then mounted back
+        * with ATTR1, keeping the di_forkoff's fixed but probably at
+        * various positions. Therefore, for both ATTR1 and ATTR2
+        * we have to assume the worst case scenario of a minimum size
+        * available.
         */
        if (whichfork == XFS_DATA_FORK) {
                maxleafents = MAXEXTNUM;
-               sz = (mp->m_flags & XFS_MOUNT_ATTR2) ?
-                       XFS_BMDR_SPACE_CALC(MINDBTPTRS) : mp->m_attroffset;
+               sz = XFS_BMDR_SPACE_CALC(MINDBTPTRS);
        } else {
                maxleafents = MAXAEXTNUM;
-               sz = (mp->m_flags & XFS_MOUNT_ATTR2) ?
-                       XFS_BMDR_SPACE_CALC(MINABTPTRS) :
-                       mp->m_sb.sb_inodesize - mp->m_attroffset;
+               sz = XFS_BMDR_SPACE_CALC(MINABTPTRS);
        }
        maxrootrecs = (int)XFS_BTREE_BLOCK_MAXRECS(sz, xfs_bmdr, 0);
        minleafrecs = mp->m_bmap_dmnr[0];
@@ -5045,7 +5046,7 @@ xfs_bmapi(
                         * A wasdelay extent has been initialized, so
                         * shouldn't be flagged as unwritten.
                         */
-                       if (wr && XFS_SB_VERSION_HASEXTFLGBIT(&mp->m_sb)) {
+                       if (wr && xfs_sb_version_hasextflgbit(&mp->m_sb)) {
                                if (!wasdelay && (flags & XFS_BMAPI_PREALLOC))
                                        got.br_state = XFS_EXT_UNWRITTEN;
                        }
@@ -5485,7 +5486,7 @@ xfs_bunmapi(
                         * get rid of part of a realtime extent.
                         */
                        if (del.br_state == XFS_EXT_UNWRITTEN ||
-                           !XFS_SB_VERSION_HASEXTFLGBIT(&mp->m_sb)) {
+                           !xfs_sb_version_hasextflgbit(&mp->m_sb)) {
                                /*
                                 * This piece is unwritten, or we're not
                                 * using unwritten extents.  Skip over it.
@@ -5537,7 +5538,7 @@ xfs_bunmapi(
                        } else if ((del.br_startoff == start &&
                                    (del.br_state == XFS_EXT_UNWRITTEN ||
                                     xfs_trans_get_block_res(tp) == 0)) ||
-                                  !XFS_SB_VERSION_HASEXTFLGBIT(&mp->m_sb)) {
+                                  !xfs_sb_version_hasextflgbit(&mp->m_sb)) {
                                /*
                                 * Can't make it unwritten.  There isn't
                                 * a full extent here so just skip it.
@@ -5774,7 +5775,6 @@ xfs_getbmap(
        int                     error;          /* return value */
        __int64_t               fixlen;         /* length for -1 case */
        int                     i;              /* extent number */
-       bhv_vnode_t             *vp;            /* corresponding vnode */
        int                     lock;           /* lock state */
        xfs_bmbt_irec_t         *map;           /* buffer for user's data */
        xfs_mount_t             *mp;            /* file system mount point */
@@ -5791,7 +5791,6 @@ xfs_getbmap(
        int                     bmapi_flags;    /* flags for xfs_bmapi */
        __int32_t               oflags;         /* getbmapx bmv_oflags field */
 
-       vp = XFS_ITOV(ip);
        mp = ip->i_mount;
 
        whichfork = interface & BMV_IF_ATTRFORK ? XFS_ATTR_FORK : XFS_DATA_FORK;
@@ -5813,7 +5812,7 @@ xfs_getbmap(
        if ((interface & BMV_IF_NO_DMAPI_READ) == 0 &&
            DM_EVENT_ENABLED(ip, DM_EVENT_READ) &&
            whichfork == XFS_DATA_FORK) {
-               error = XFS_SEND_DATA(mp, DM_EVENT_READ, vp, 0, 0, 0, NULL);
+               error = XFS_SEND_DATA(mp, DM_EVENT_READ, ip, 0, 0, 0, NULL);
                if (error)
                        return XFS_ERROR(error);
        }
@@ -5871,6 +5870,10 @@ xfs_getbmap(
                /* xfs_fsize_t last_byte = xfs_file_last_byte(ip); */
                error = xfs_flush_pages(ip, (xfs_off_t)0,
                                               -1, 0, FI_REMAPF);
+               if (error) {
+                       xfs_iunlock(ip, XFS_IOLOCK_SHARED);
+               return error;
+               }
        }
 
        ASSERT(whichfork == XFS_ATTR_FORK || ip->i_delayed_blks == 0);
@@ -6164,10 +6167,10 @@ xfs_check_block(
                        }
                        if (*thispa == *pp) {
                                cmn_err(CE_WARN, "%s: thispa(%d) == pp(%d) %Ld",
-                                       __FUNCTION__, j, i,
+                                       __func__, j, i,
                                        (unsigned long long)be64_to_cpu(*thispa));
                                panic("%s: ptrs are equal in node\n",
-                                       __FUNCTION__);
+                                       __func__);
                        }
                }
        }
@@ -6194,7 +6197,7 @@ xfs_bmap_check_leaf_extents(
        xfs_mount_t             *mp;    /* file system mount structure */
        __be64                  *pp;    /* pointer to block address */
        xfs_bmbt_rec_t          *ep;    /* pointer to current extent */
-       xfs_bmbt_rec_t          *lastp; /* pointer to previous extent */
+       xfs_bmbt_rec_t          last = {0, 0}; /* last extent in prev block */
        xfs_bmbt_rec_t          *nextp; /* pointer to next extent */
        int                     bp_release = 0;
 
@@ -6264,7 +6267,6 @@ xfs_bmap_check_leaf_extents(
        /*
         * Loop over all leaf nodes checking that all extents are in the right order.
         */
-       lastp = NULL;
        for (;;) {
                xfs_fsblock_t   nextbno;
                xfs_extnum_t    num_recs;
@@ -6285,18 +6287,16 @@ xfs_bmap_check_leaf_extents(
                 */
 
                ep = XFS_BTREE_REC_ADDR(xfs_bmbt, block, 1);
+               if (i) {
+                       xfs_btree_check_rec(XFS_BTNUM_BMAP, &last, ep);
+               }
                for (j = 1; j < num_recs; j++) {
                        nextp = XFS_BTREE_REC_ADDR(xfs_bmbt, block, j + 1);
-                       if (lastp) {
-                               xfs_btree_check_rec(XFS_BTNUM_BMAP,
-                                       (void *)lastp, (void *)ep);
-                       }
-                       xfs_btree_check_rec(XFS_BTNUM_BMAP, (void *)ep,
-                               (void *)(nextp));
-                       lastp = ep;
+                       xfs_btree_check_rec(XFS_BTNUM_BMAP, ep, nextp);
                        ep = nextp;
                }
 
+               last = *ep;
                i += num_recs;
                if (bp_release) {
                        bp_release = 0;
@@ -6327,13 +6327,13 @@ xfs_bmap_check_leaf_extents(
        return;
 
 error0:
-       cmn_err(CE_WARN, "%s: at error0", __FUNCTION__);
+       cmn_err(CE_WARN, "%s: at error0", __func__);
        if (bp_release)
                xfs_trans_brelse(NULL, bp);
 error_norelse:
        cmn_err(CE_WARN, "%s: BAD after btree leaves for %d extents",
-               __FUNCTION__, i);
-       panic("%s: CORRUPTED BTREE OR SOMETHING", __FUNCTION__);
+               __func__, i);
+       panic("%s: CORRUPTED BTREE OR SOMETHING", __func__);
        return;
 }
 #endif
@@ -6394,7 +6394,7 @@ xfs_bmap_count_blocks(
  * Recursively walks each level of a btree
  * to count total fsblocks is use.
  */
-int                                     /* error */
+STATIC int                                     /* error */
 xfs_bmap_count_tree(
        xfs_mount_t     *mp,            /* file system mount point */
        xfs_trans_t     *tp,            /* transaction pointer */
@@ -6470,7 +6470,7 @@ xfs_bmap_count_tree(
 /*
  * Count leaf blocks given a range of extent records.
  */
-int
+STATIC int
 xfs_bmap_count_leaves(
        xfs_ifork_t             *ifp,
        xfs_extnum_t            idx,
@@ -6490,7 +6490,7 @@ xfs_bmap_count_leaves(
  * Count leaf blocks given a range of extent records originally
  * in btree format.
  */
-int
+STATIC int
 xfs_bmap_disk_count_leaves(
        xfs_extnum_t            idx,
        xfs_bmbt_block_t        *block,