[XFS] replace b_fspriv with b_mount
[safe/jmp/linux-2.6] / fs / xfs / xfs_itable.c
index 9972992..e19d0a8 100644 (file)
@@ -45,7 +45,7 @@ xfs_internal_inum(
        xfs_ino_t       ino)
 {
        return (ino == mp->m_sb.sb_rbmino || ino == mp->m_sb.sb_rsumino ||
-               (XFS_SB_VERSION_HASQUOTA(&mp->m_sb) &&
+               (xfs_sb_version_hasquota(&mp->m_sb) &&
                 (ino == mp->m_sb.sb_uquotino || ino == mp->m_sb.sb_gquotino)));
 }
 
@@ -59,7 +59,6 @@ xfs_bulkstat_one_iget(
 {
        xfs_icdinode_t  *dic;   /* dinode core info pointer */
        xfs_inode_t     *ip;            /* incore inode pointer */
-       bhv_vnode_t     *vp;
        int             error;
 
        error = xfs_iget(mp, NULL, ino,
@@ -70,14 +69,8 @@ xfs_bulkstat_one_iget(
        }
 
        ASSERT(ip != NULL);
-       ASSERT(ip->i_blkno != (xfs_daddr_t)0);
-       if (ip->i_d.di_mode == 0) {
-               *stat = BULKSTAT_RV_NOTHING;
-               error = XFS_ERROR(ENOENT);
-               goto out_iput;
-       }
+       ASSERT(ip->i_imap.im_blkno != 0);
 
-       vp = XFS_ITOV(ip);
        dic = &ip->i_d;
 
        /* xfs_iget returns the following without needing
@@ -90,7 +83,7 @@ xfs_bulkstat_one_iget(
        buf->bs_uid = dic->di_uid;
        buf->bs_gid = dic->di_gid;
        buf->bs_size = dic->di_size;
-       vn_atime_to_bstime(vp, &buf->bs_atime);
+       vn_atime_to_bstime(VFS_I(ip), &buf->bs_atime);
        buf->bs_mtime.tv_sec = dic->di_mtime.t_sec;
        buf->bs_mtime.tv_nsec = dic->di_mtime.t_nsec;
        buf->bs_ctime.tv_sec = dic->di_ctime.t_sec;
@@ -124,22 +117,17 @@ xfs_bulkstat_one_iget(
                break;
        }
 
- out_iput:
        xfs_iput(ip, XFS_ILOCK_SHARED);
        return error;
 }
 
-STATIC int
+STATIC void
 xfs_bulkstat_one_dinode(
        xfs_mount_t     *mp,            /* mount point for filesystem */
        xfs_ino_t       ino,            /* inode number to get data for */
-       xfs_dinode_t    *dip,           /* dinode inode pointer */
+       xfs_dinode_t    *dic,           /* dinode inode pointer */
        xfs_bstat_t     *buf)           /* return buffer */
 {
-       xfs_dinode_core_t *dic;         /* dinode core info pointer */
-
-       dic = &dip->di_core;
-
        /*
         * The inode format changed when we moved the link count and
         * made it 32 bits long.  If this is an old format inode,
@@ -151,7 +139,7 @@ xfs_bulkstat_one_dinode(
         * the new format. We don't change the version number so that we
         * can distinguish this from a real new format inode.
         */
-       if (dic->di_version == XFS_DINODE_VERSION_1) {
+       if (dic->di_version == 1) {
                buf->bs_nlink = be16_to_cpu(dic->di_onlink);
                buf->bs_projid = 0;
        } else {
@@ -181,7 +169,7 @@ xfs_bulkstat_one_dinode(
 
        switch (dic->di_format) {
        case XFS_DINODE_FMT_DEV:
-               buf->bs_rdev = be32_to_cpu(dip->di_u.di_dev);
+               buf->bs_rdev = xfs_dinode_get_rdev(dic);
                buf->bs_blksize = BLKDEV_IOSIZE;
                buf->bs_blocks = 0;
                break;
@@ -198,31 +186,36 @@ xfs_bulkstat_one_dinode(
                buf->bs_blocks = be64_to_cpu(dic->di_nblocks);
                break;
        }
-
-       return 0;
 }
 
+/* Return 0 on success or positive error */
 STATIC int
 xfs_bulkstat_one_fmt(
        void                    __user *ubuffer,
+       int                     ubsize,
+       int                     *ubused,
        const xfs_bstat_t       *buffer)
 {
+       if (ubsize < sizeof(*buffer))
+               return XFS_ERROR(ENOMEM);
        if (copy_to_user(ubuffer, buffer, sizeof(*buffer)))
-               return -EFAULT;
-       return sizeof(*buffer);
+               return XFS_ERROR(EFAULT);
+       if (ubused)
+               *ubused = sizeof(*buffer);
+       return 0;
 }
 
 /*
  * Return stat information for one inode.
  * Return 0 if ok, else errno.
  */
-int                            /* error status */
-xfs_bulkstat_one(
+int                                    /* error status */
+xfs_bulkstat_one_int(
        xfs_mount_t     *mp,            /* mount point for filesystem */
        xfs_ino_t       ino,            /* inode number to get data for */
        void            __user *buffer, /* buffer to place output in */
        int             ubsize,         /* size of buffer */
-       void            *private_data,  /* my private data */
+       bulkstat_one_fmt_pf formatter,  /* formatter, copy to user */
        xfs_daddr_t     bno,            /* starting bno of inode cluster */
        int             *ubused,        /* bytes used by me */
        void            *dibuff,        /* on-disk inode buffer */
@@ -231,15 +224,12 @@ xfs_bulkstat_one(
        xfs_bstat_t     *buf;           /* return buffer */
        int             error = 0;      /* error value */
        xfs_dinode_t    *dip;           /* dinode inode pointer */
-       bulkstat_one_fmt_pf formatter = private_data ? : xfs_bulkstat_one_fmt;
 
        dip = (xfs_dinode_t *)dibuff;
        *stat = BULKSTAT_RV_NOTHING;
 
        if (!buffer || xfs_internal_inum(mp, ino))
                return XFS_ERROR(EINVAL);
-       if (ubsize < sizeof(*buf))
-               return XFS_ERROR(ENOMEM);
 
        buf = kmem_alloc(sizeof(*buf), KM_SLEEP);
 
@@ -254,21 +244,34 @@ xfs_bulkstat_one(
                xfs_bulkstat_one_dinode(mp, ino, dip, buf);
        }
 
-       error = formatter(buffer, buf);
-       if (error < 0)  {
-               error = EFAULT;
+       error = formatter(buffer, ubsize, ubused, buf);
+       if (error)
                goto out_free;
-       }
 
        *stat = BULKSTAT_RV_DIDONE;
-       if (ubused)
-               *ubused = error;
 
  out_free:
-       kmem_free(buf, sizeof(*buf));
+       kmem_free(buf);
        return error;
 }
 
+int
+xfs_bulkstat_one(
+       xfs_mount_t     *mp,            /* mount point for filesystem */
+       xfs_ino_t       ino,            /* inode number to get data for */
+       void            __user *buffer, /* buffer to place output in */
+       int             ubsize,         /* size of buffer */
+       void            *private_data,  /* my private data */
+       xfs_daddr_t     bno,            /* starting bno of inode cluster */
+       int             *ubused,        /* bytes used by me */
+       void            *dibuff,        /* on-disk inode buffer */
+       int             *stat)          /* BULKSTAT_RV_... */
+{
+       return xfs_bulkstat_one_int(mp, ino, buffer, ubsize,
+                                   xfs_bulkstat_one_fmt, bno,
+                                   ubused, dibuff, stat);
+}
+
 /*
  * Test to see whether we can use the ondisk inode directly, based
  * on the given bulkstat flags, filling in dipp accordingly.
@@ -291,31 +294,33 @@ xfs_bulkstat_use_dinode(
        dip = (xfs_dinode_t *)
                        xfs_buf_offset(bp, clustidx << mp->m_sb.sb_inodelog);
        /*
-        * Check the buffer containing the on-disk inode for di_nlink == 0.
+        * Check the buffer containing the on-disk inode for di_mode == 0.
         * This is to prevent xfs_bulkstat from picking up just reclaimed
         * inodes that have their in-core state initialized but not flushed
         * to disk yet. This is a temporary hack that would require a proper
         * fix in the future.
         */
-       if (be16_to_cpu(dip->di_core.di_magic) != XFS_DINODE_MAGIC ||
-           !XFS_DINODE_GOOD_VERSION(dip->di_core.di_version) ||
-           !dip->di_core.di_nlink)
+       if (be16_to_cpu(dip->di_magic) != XFS_DINODE_MAGIC ||
+           !XFS_DINODE_GOOD_VERSION(dip->di_version) ||
+           !dip->di_mode)
                return 0;
        if (flags & BULKSTAT_FG_QUICK) {
                *dipp = dip;
                return 1;
        }
        /* BULKSTAT_FG_INLINE: if attr fork is local, or not there, use it */
-       aformat = dip->di_core.di_aformat;
-       if ((XFS_CFORK_Q(&dip->di_core) == 0) ||
+       aformat = dip->di_aformat;
+       if ((XFS_DFORK_Q(dip) == 0) ||
            (aformat == XFS_DINODE_FMT_LOCAL) ||
-           (aformat == XFS_DINODE_FMT_EXTENTS && !dip->di_core.di_anextents)) {
+           (aformat == XFS_DINODE_FMT_EXTENTS && !dip->di_anextents)) {
                *dipp = dip;
                return 1;
        }
        return 1;
 }
 
+#define XFS_BULKSTAT_UBLEFT(ubleft)    ((ubleft) >= statstruct_size)
+
 /*
  * Return stat information in bulk (by-inode) for the filesystem.
  */
@@ -353,7 +358,7 @@ xfs_bulkstat(
        xfs_inobt_rec_incore_t  *irbp;  /* current irec buffer pointer */
        xfs_inobt_rec_incore_t  *irbuf; /* start of irec buffer */
        xfs_inobt_rec_incore_t  *irbufend; /* end of good irec buffer entries */
-       xfs_ino_t               lastino=0; /* last inode number returned */
+       xfs_ino_t               lastino; /* last inode number returned */
        int                     nbcluster; /* # of blocks in a cluster */
        int                     nicluster; /* # of inodes in a cluster */
        int                     nimask; /* mask for inode clusters */
@@ -367,12 +372,12 @@ xfs_bulkstat(
        int                     ubused; /* bytes used by formatter */
        xfs_buf_t               *bp;    /* ptr to on-disk inode cluster buf */
        xfs_dinode_t            *dip;   /* ptr into bp for specific inode */
-       xfs_inode_t             *ip;    /* ptr to in-core inode struct */
 
        /*
         * Get the last inode value, see if there's nothing to do.
         */
        ino = (xfs_ino_t)*lastinop;
+       lastino = ino;
        dip = NULL;
        agno = XFS_INO_TO_AGNO(mp, ino);
        agino = XFS_INO_TO_AGINO(mp, ino);
@@ -382,6 +387,9 @@ xfs_bulkstat(
                *ubcountp = 0;
                return 0;
        }
+       if (!ubcountp || *ubcountp <= 0) {
+               return EINVAL;
+       }
        ubcount = *ubcountp; /* statstruct's */
        ubleft = ubcount * statstruct_size; /* bytes */
        *ubcountp = ubelem = 0;
@@ -393,7 +401,7 @@ xfs_bulkstat(
                (XFS_INODE_CLUSTER_SIZE(mp) >> mp->m_sb.sb_inodelog);
        nimask = ~(nicluster - 1);
        nbcluster = nicluster >> mp->m_sb.sb_inopblog;
-       irbuf = kmem_zalloc_greedy(&irbsize, NBPC, NBPC * 4,
+       irbuf = kmem_zalloc_greedy(&irbsize, PAGE_SIZE, PAGE_SIZE * 4,
                                   KM_SLEEP | KM_MAYFAIL | KM_LARGE);
        nirbuf = irbsize / sizeof(*irbuf);
 
@@ -402,7 +410,8 @@ xfs_bulkstat(
         * inode returned; 0 means start of the allocation group.
         */
        rval = 0;
-       while (ubleft >= statstruct_size && agno < mp->m_sb.sb_agcount) {
+       while (XFS_BULKSTAT_UBLEFT(ubleft) && agno < mp->m_sb.sb_agcount) {
+               cond_resched();
                bp = NULL;
                down_read(&mp->m_peraglock);
                error = xfs_ialloc_read_agi(mp, NULL, agno, &agbp);
@@ -419,8 +428,7 @@ xfs_bulkstat(
                /*
                 * Allocate and initialize a btree cursor for ialloc btree.
                 */
-               cur = xfs_btree_init_cursor(mp, NULL, agbp, agno, XFS_BTNUM_INO,
-                                               (xfs_inode_t *)0, 0);
+               cur = xfs_inobt_init_cursor(mp, NULL, agbp, agno);
                irbp = irbuf;
                irbufend = irbuf + nirbuf;
                end_of_ag = 0;
@@ -475,7 +483,7 @@ xfs_bulkstat(
                         * In any case, increment to the next record.
                         */
                        if (!error)
-                               error = xfs_inobt_increment(cur, 0, &tmp);
+                               error = xfs_btree_increment(cur, 0, &tmp);
                } else {
                        /*
                         * Start of ag.  Lookup the first inode chunk.
@@ -499,6 +507,7 @@ xfs_bulkstat(
                                        break;
                                error = xfs_inobt_lookup_ge(cur, agino, 0, 0,
                                                            &tmp);
+                               cond_resched();
                        }
                        /*
                         * If ran off the end of the ag either with an error,
@@ -541,7 +550,8 @@ xfs_bulkstat(
                         * Set agino to after this chunk and bump the cursor.
                         */
                        agino = gino + XFS_INODES_PER_CHUNK;
-                       error = xfs_inobt_increment(cur, 0, &tmp);
+                       error = xfs_btree_increment(cur, 0, &tmp);
+                       cond_resched();
                }
                /*
                 * Drop the btree buffers and the agi buffer.
@@ -555,12 +565,12 @@ xfs_bulkstat(
                 */
                irbufend = irbp;
                for (irbp = irbuf;
-                    irbp < irbufend && ubleft >= statstruct_size; irbp++) {
+                    irbp < irbufend && XFS_BULKSTAT_UBLEFT(ubleft); irbp++) {
                        /*
                         * Now process this chunk of inodes.
                         */
                        for (agino = irbp->ir_startino, chunkidx = clustidx = 0;
-                            ubleft > 0 &&
+                            XFS_BULKSTAT_UBLEFT(ubleft) &&
                                irbp->ir_freecount < XFS_INODES_PER_CHUNK;
                             chunkidx++, clustidx++, agino++) {
                                ASSERT(chunkidx < XFS_INODES_PER_CHUNK);
@@ -587,6 +597,8 @@ xfs_bulkstat(
 
                                        if (flags & (BULKSTAT_FG_QUICK |
                                                     BULKSTAT_FG_INLINE)) {
+                                               int offset;
+
                                                ino = XFS_AGINO_TO_INO(mp, agno,
                                                                       agino);
                                                bno = XFS_AGB_TO_DADDR(mp, agno,
@@ -595,20 +607,15 @@ xfs_bulkstat(
                                                /*
                                                 * Get the inode cluster buffer
                                                 */
-                                               ASSERT(xfs_inode_zone != NULL);
-                                               ip = kmem_zone_zalloc(xfs_inode_zone,
-                                                                     KM_SLEEP);
-                                               ip->i_ino = ino;
-                                               ip->i_mount = mp;
-                                               spin_lock_init(&ip->i_flags_lock);
                                                if (bp)
                                                        xfs_buf_relse(bp);
-                                               error = xfs_itobp(mp, NULL, ip,
-                                                               &dip, &bp, bno,
-                                                               XFS_IMAP_BULKSTAT);
+
+                                               error = xfs_inotobp(mp, NULL, ino, &dip,
+                                                                   &bp, &offset,
+                                                                   XFS_IGET_BULKSTAT);
+
                                                if (!error)
-                                                       clustidx = ip->i_boffset / mp->m_sb.sb_inodesize;
-                                               kmem_zone_free(xfs_inode_zone, ip);
+                                                       clustidx = offset / mp->m_sb.sb_inodesize;
                                                if (XFS_TEST_ERROR(error != 0,
                                                                   mp, XFS_ERRTAG_BULKSTAT_READ_CHUNK,
                                                                   XFS_RANDOM_BULKSTAT_READ_CHUNK)) {
@@ -663,15 +670,13 @@ xfs_bulkstat(
                                                ubleft, private_data,
                                                bno, &ubused, dip, &fmterror);
                                if (fmterror == BULKSTAT_RV_NOTHING) {
-                                        if (error == EFAULT) {
-                                                ubleft = 0;
-                                                rval = error;
-                                                break;
-                                        }
-                                       else if (error == ENOMEM)
+                                       if (error && error != ENOENT &&
+                                               error != EINVAL) {
                                                ubleft = 0;
-                                       else
-                                               lastino = ino;
+                                               rval = error;
+                                               break;
+                                       }
+                                       lastino = ino;
                                        continue;
                                }
                                if (fmterror == BULKSTAT_RV_GIVEUP) {
@@ -686,6 +691,8 @@ xfs_bulkstat(
                                ubelem++;
                                lastino = ino;
                        }
+
+                       cond_resched();
                }
 
                if (bp)
@@ -694,19 +701,25 @@ xfs_bulkstat(
                /*
                 * Set up for the next loop iteration.
                 */
-               if (ubleft > 0) {
+               if (XFS_BULKSTAT_UBLEFT(ubleft)) {
                        if (end_of_ag) {
                                agno++;
                                agino = 0;
-                       }
+                       } else
+                               agino = XFS_INO_TO_AGINO(mp, lastino);
                } else
                        break;
        }
        /*
         * Done, we're either out of filesystem or space to put the data.
         */
-       kmem_free(irbuf, irbsize);
+       kmem_free(irbuf);
        *ubcountp = ubelem;
+       /*
+        * Found some inodes, return them now and return the error next time.
+        */
+       if (ubelem)
+               rval = 0;
        if (agno >= mp->m_sb.sb_agcount) {
                /*
                 * If we ran out of filesystem, mark lastino as off
@@ -815,7 +828,7 @@ xfs_inumbers(
        agino = XFS_INO_TO_AGINO(mp, ino);
        left = *count;
        *count = 0;
-       bcount = MIN(left, (int)(NBPP / sizeof(*buffer)));
+       bcount = MIN(left, (int)(PAGE_SIZE / sizeof(*buffer)));
        buffer = kmem_alloc(bcount * sizeof(*buffer), KM_SLEEP);
        error = bufidx = 0;
        cur = NULL;
@@ -836,8 +849,7 @@ xfs_inumbers(
                                agino = 0;
                                continue;
                        }
-                       cur = xfs_btree_init_cursor(mp, NULL, agbp, agno,
-                               XFS_BTNUM_INO, (xfs_inode_t *)0, 0);
+                       cur = xfs_inobt_init_cursor(mp, NULL, agbp, agno);
                        error = xfs_inobt_lookup_ge(cur, agino, 0, 0, &tmp);
                        if (error) {
                                xfs_btree_del_cursor(cur, XFS_BTREE_ERROR);
@@ -881,7 +893,7 @@ xfs_inumbers(
                        bufidx = 0;
                }
                if (left) {
-                       error = xfs_inobt_increment(cur, 0, &tmp);
+                       error = xfs_btree_increment(cur, 0, &tmp);
                        if (error) {
                                xfs_btree_del_cursor(cur, XFS_BTREE_ERROR);
                                cur = NULL;
@@ -906,7 +918,7 @@ xfs_inumbers(
                }
                *lastino = XFS_AGINO_TO_INO(mp, agno, agino);
        }
-       kmem_free(buffer, bcount * sizeof(*buffer));
+       kmem_free(buffer);
        if (cur)
                xfs_btree_del_cursor(cur, (error ? XFS_BTREE_ERROR :
                                           XFS_BTREE_NOERROR));