Merge to Fedora kernel-2.6.18-1.2224_FC5 patched with stable patch-2.6.18.1-vs2.0...
[linux-2.6.git] / fs / xfs / xfs_inode.c
index 33f589f..7b5dfd1 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
+ * Copyright (c) 2000-2006 Silicon Graphics, Inc.
  * All Rights Reserved.
  *
  * This program is free software; you can redistribute it and/or
 #include "xfs_trans_priv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_dir.h"
 #include "xfs_dir2.h"
 #include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
 #include "xfs_ialloc_btree.h"
-#include "xfs_dir_sf.h"
 #include "xfs_dir2_sf.h"
 #include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
@@ -257,13 +255,11 @@ xfs_itobp(
        xfs_daddr_t     bno,
        uint            imap_flags)
 {
+       xfs_imap_t      imap;
        xfs_buf_t       *bp;
        int             error;
-       xfs_imap_t      imap;
-#ifdef __KERNEL__
        int             i;
        int             ni;
-#endif
 
        if (ip->i_blkno == (xfs_daddr_t)0) {
                /*
@@ -320,7 +316,6 @@ xfs_itobp(
         */
        error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp, imap.im_blkno,
                                   (int)imap.im_len, XFS_BUF_LOCK, &bp);
-
        if (error) {
 #ifdef DEBUG
                xfs_fs_cmn_err(CE_ALERT, mp, "xfs_itobp: "
@@ -331,17 +326,20 @@ xfs_itobp(
 #endif /* DEBUG */
                return error;
        }
-#ifdef __KERNEL__
+
        /*
         * Validate the magic number and version of every inode in the buffer
         * (if DEBUG kernel) or the first inode in the buffer, otherwise.
+        * No validation is done here in userspace (xfs_repair).
         */
-#ifdef DEBUG
-       ni = (imap_flags & XFS_IMAP_BULKSTAT) ? 0 :
-               (BBTOB(imap.im_len) >> mp->m_sb.sb_inodelog);
-#else
-       ni = (imap_flags & XFS_IMAP_BULKSTAT) ? 0 : 1;
+#if !defined(__KERNEL__)
+       ni = 0;
+#elif defined(DEBUG)
+       ni = BBTOB(imap.im_len) >> mp->m_sb.sb_inodelog;
+#else  /* usual case */
+       ni = 1;
 #endif
+
        for (i = 0; i < ni; i++) {
                int             di_ok;
                xfs_dinode_t    *dip;
@@ -350,11 +348,18 @@ xfs_itobp(
                                        (i << mp->m_sb.sb_inodelog));
                di_ok = INT_GET(dip->di_core.di_magic, ARCH_CONVERT) == XFS_DINODE_MAGIC &&
                            XFS_DINODE_GOOD_VERSION(INT_GET(dip->di_core.di_version, ARCH_CONVERT));
-               if (unlikely(XFS_TEST_ERROR(!di_ok, mp, XFS_ERRTAG_ITOBP_INOTOBP,
-                                XFS_RANDOM_ITOBP_INOTOBP))) {
+               if (unlikely(XFS_TEST_ERROR(!di_ok, mp,
+                                               XFS_ERRTAG_ITOBP_INOTOBP,
+                                               XFS_RANDOM_ITOBP_INOTOBP))) {
+                       if (imap_flags & XFS_IMAP_BULKSTAT) {
+                               xfs_trans_brelse(tp, bp);
+                               return XFS_ERROR(EINVAL);
+                       }
 #ifdef DEBUG
-                       prdev("bad inode magic/vsn daddr %lld #%d (magic=%x)",
-                               mp->m_ddev_targp,
+                       cmn_err(CE_ALERT,
+                                       "Device %s - bad inode magic/vsn "
+                                       "daddr %lld #%d (magic=%x)",
+                               XFS_BUFTARG_NAME(mp->m_ddev_targp),
                                (unsigned long long)imap.im_blkno, i,
                                INT_GET(dip->di_core.di_magic, ARCH_CONVERT));
 #endif
@@ -364,7 +369,6 @@ xfs_itobp(
                        return XFS_ERROR(EFSCORRUPTED);
                }
        }
-#endif /* __KERNEL__ */
 
        xfs_inobp_check(mp, bp);
 
@@ -798,7 +802,6 @@ xfs_xlate_dinode_core(
 
 STATIC uint
 _xfs_dic2xflags(
-       xfs_dinode_core_t       *dic,
        __uint16_t              di_flags)
 {
        uint                    flags = 0;
@@ -832,6 +835,8 @@ _xfs_dic2xflags(
                        flags |= XFS_XFLAG_EXTSIZE;
                if (di_flags & XFS_DIFLAG_EXTSZINHERIT)
                        flags |= XFS_XFLAG_EXTSZINHERIT;
+               if (di_flags & XFS_DIFLAG_NODEFRAG)
+                       flags |= XFS_XFLAG_NODEFRAG;
        }
 
        return flags;
@@ -843,16 +848,16 @@ xfs_ip2xflags(
 {
        xfs_dinode_core_t       *dic = &ip->i_d;
 
-       return _xfs_dic2xflags(dic, dic->di_flags) |
-               (XFS_CFORK_Q(dic) ? XFS_XFLAG_HASATTR : 0);
+       return _xfs_dic2xflags(dic->di_flags) |
+                               (XFS_CFORK_Q(dic) ? XFS_XFLAG_HASATTR : 0);
 }
 
 uint
 xfs_dic2xflags(
        xfs_dinode_core_t       *dic)
 {
-       return _xfs_dic2xflags(dic, INT_GET(dic->di_flags, ARCH_CONVERT)) |
-               (XFS_CFORK_Q_DISK(dic) ? XFS_XFLAG_HASATTR : 0);
+       return _xfs_dic2xflags(INT_GET(dic->di_flags, ARCH_CONVERT)) |
+                               (XFS_CFORK_Q_DISK(dic) ? XFS_XFLAG_HASATTR : 0);
 }
 
 /*
@@ -1103,7 +1108,7 @@ xfs_ialloc(
 {
        xfs_ino_t       ino;
        xfs_inode_t     *ip;
-       vnode_t         *vp;
+       bhv_vnode_t     *vp;
        uint            flags;
        int             error;
 
@@ -1242,6 +1247,9 @@ xfs_ialloc(
                                di_flags |= XFS_DIFLAG_NOSYMLINKS;
                        if (pip->i_d.di_flags & XFS_DIFLAG_PROJINHERIT)
                                di_flags |= XFS_DIFLAG_PROJINHERIT;
+                       if ((pip->i_d.di_flags & XFS_DIFLAG_NODEFRAG) &&
+                           xfs_inherit_nodefrag)
+                               di_flags |= XFS_DIFLAG_NODEFRAG;
                        ip->i_d.di_flags |= di_flags;
                }
                /* FALLTHROUGH */
@@ -1265,8 +1273,8 @@ xfs_ialloc(
         */
        xfs_trans_log_inode(tp, ip, flags);
 
-       /* now that we have an i_mode  we can set Linux inode ops (& unlock) */
-       VFS_INIT_VNODE(XFS_MTOVFS(tp->t_mountp), vp, XFS_ITOBHV(ip), 1);
+       /* now that we have an i_mode we can setup inode ops and unlock */
+       bhv_vfs_init_vnode(XFS_MTOVFS(tp->t_mountp), vp, XFS_ITOBHV(ip), 1);
 
        *ipp = ip;
        return 0;
@@ -1306,7 +1314,7 @@ xfs_isize_check(
                                       (xfs_ufsize_t)XFS_MAXIOFFSET(mp)) -
                          map_first),
                         XFS_BMAPI_ENTIRE, NULL, 0, imaps, &nimaps,
-                        NULL))
+                        NULL, NULL))
            return;
        ASSERT(nimaps == 1);
        ASSERT(imaps[0].br_startblock == HOLESTARTBLOCK);
@@ -1442,7 +1450,7 @@ xfs_itruncate_start(
        xfs_fsize_t     last_byte;
        xfs_off_t       toss_start;
        xfs_mount_t     *mp;
-       vnode_t         *vp;
+       bhv_vnode_t     *vp;
 
        ASSERT(ismrlocked(&ip->i_iolock, MR_UPDATE) != 0);
        ASSERT((new_size == 0) || (new_size <= ip->i_d.di_size));
@@ -1455,9 +1463,9 @@ xfs_itruncate_start(
        vn_iowait(vp);  /* wait for the completion of any pending DIOs */
        
        /*
-        * Call VOP_TOSS_PAGES() or VOP_FLUSHINVAL_PAGES() to get rid of pages and buffers
+        * Call toss_pages or flushinval_pages to get rid of pages
         * overlapping the region being removed.  We have to use
-        * the less efficient VOP_FLUSHINVAL_PAGES() in the case that the
+        * the less efficient flushinval_pages in the case that the
         * caller may not be able to finish the truncate without
         * dropping the inode's I/O lock.  Make sure
         * to catch any pages brought in by buffers overlapping
@@ -1466,10 +1474,10 @@ xfs_itruncate_start(
         * so that we don't toss things on the same block as
         * new_size but before it.
         *
-        * Before calling VOP_TOSS_PAGES() or VOP_FLUSHINVAL_PAGES(), make sure to
+        * Before calling toss_page or flushinval_pages, make sure to
         * call remapf() over the same region if the file is mapped.
         * This frees up mapped file references to the pages in the
-        * given range and for the VOP_FLUSHINVAL_PAGES() case it ensures
+        * given range and for the flushinval_pages case it ensures
         * that we get the latest mapped changes flushed out.
         */
        toss_start = XFS_B_TO_FSB(mp, (xfs_ufsize_t)new_size);
@@ -1487,9 +1495,9 @@ xfs_itruncate_start(
                         last_byte);
        if (last_byte > toss_start) {
                if (flags & XFS_ITRUNC_DEFINITE) {
-                       VOP_TOSS_PAGES(vp, toss_start, -1, FI_REMAPF_LOCKED);
+                       bhv_vop_toss_pages(vp, toss_start, -1, FI_REMAPF_LOCKED);
                } else {
-                       VOP_FLUSHINVAL_PAGES(vp, toss_start, -1, FI_REMAPF_LOCKED);
+                       bhv_vop_flushinval_pages(vp, toss_start, -1, FI_REMAPF_LOCKED);
                }
        }
 
@@ -1687,12 +1695,13 @@ xfs_itruncate_finish(
                 * runs.
                 */
                XFS_BMAP_INIT(&free_list, &first_block);
-               error = xfs_bunmapi(ntp, ip, first_unmap_block,
-                                   unmap_len,
+               error = XFS_BUNMAPI(mp, ntp, &ip->i_iocore,
+                                   first_unmap_block, unmap_len,
                                    XFS_BMAPI_AFLAG(fork) |
                                      (sync ? 0 : XFS_BMAPI_ASYNC),
                                    XFS_ITRUNC_MAX_EXTENTS,
-                                   &first_block, &free_list, &done);
+                                   &first_block, &free_list,
+                                   NULL, &done);
                if (error) {
                        /*
                         * If the bunmapi call encounters an error,
@@ -1976,9 +1985,9 @@ xfs_iunlink_remove(
        xfs_agino_t     agino;
        xfs_agino_t     next_agino;
        xfs_buf_t       *last_ibp;
-       xfs_dinode_t    *last_dip;
+       xfs_dinode_t    *last_dip = NULL;
        short           bucket_index;
-       int             offset, last_offset;
+       int             offset, last_offset = 0;
        int             error;
        int             agi_ok;
 
@@ -2766,13 +2775,14 @@ xfs_iunpin(
                 * the inode to become unpinned.
                 */
                if (!(ip->i_flags & (XFS_IRECLAIM|XFS_IRECLAIMABLE))) {
-                       vnode_t *vp = XFS_ITOV_NULL(ip);
+                       bhv_vnode_t     *vp = XFS_ITOV_NULL(ip);
 
                        /* make sync come back and flush this inode */
                        if (vp) {
                                struct inode    *inode = vn_to_inode(vp);
 
-                               if (!(inode->i_state & I_NEW))
+                               if (!(inode->i_state &
+                                               (I_NEW|I_FREEING|I_CLEAR)))
                                        mark_inode_dirty_sync(inode);
                        }
                }
@@ -2937,13 +2947,6 @@ xfs_iflush_fork(
                        ASSERT(ifp->if_bytes <= XFS_IFORK_SIZE(ip, whichfork));
                        memcpy(cp, ifp->if_u1.if_data, ifp->if_bytes);
                }
-               if (whichfork == XFS_DATA_FORK) {
-                       if (unlikely(XFS_DIR_SHORTFORM_VALIDATE_ONDISK(mp, dip))) {
-                               XFS_ERROR_REPORT("xfs_iflush_fork",
-                                                XFS_ERRLEVEL_LOW, mp);
-                               return XFS_ERROR(EFSCORRUPTED);
-                       }
-               }
                break;
 
        case XFS_DINODE_FMT_EXTENTS:
@@ -3027,7 +3030,7 @@ xfs_iflush(
        XFS_STATS_INC(xs_iflush_count);
 
        ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE|MR_ACCESS));
-       ASSERT(valusema(&ip->i_flock) <= 0);
+       ASSERT(issemalocked(&(ip->i_flock)));
        ASSERT(ip->i_d.di_format != XFS_DINODE_FMT_BTREE ||
               ip->i_d.di_nextents > ip->i_df.if_ext_max);
 
@@ -3220,7 +3223,7 @@ xfs_iflush(
 
 corrupt_out:
        xfs_buf_relse(bp);
-       xfs_force_shutdown(mp, XFS_CORRUPT_INCORE);
+       xfs_force_shutdown(mp, SHUTDOWN_CORRUPT_INCORE);
        xfs_iflush_abort(ip);
        /*
         * Unlocks the flush lock
@@ -3242,7 +3245,7 @@ cluster_corrupt_out:
                xfs_buf_relse(bp);
        }
 
-       xfs_force_shutdown(mp, XFS_CORRUPT_INCORE);
+       xfs_force_shutdown(mp, SHUTDOWN_CORRUPT_INCORE);
 
        if(!bufwasdelwri)  {
                /*
@@ -3285,7 +3288,7 @@ xfs_iflush_int(
        SPLDECL(s);
 
        ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE|MR_ACCESS));
-       ASSERT(valusema(&ip->i_flock) <= 0);
+       ASSERT(issemalocked(&(ip->i_flock)));
        ASSERT(ip->i_d.di_format != XFS_DINODE_FMT_BTREE ||
               ip->i_d.di_nextents > ip->i_df.if_ext_max);
 
@@ -3525,7 +3528,7 @@ xfs_iflush_all(
        xfs_mount_t     *mp)
 {
        xfs_inode_t     *ip;
-       vnode_t         *vp;
+       bhv_vnode_t     *vp;
 
  again:
        XFS_MOUNT_ILOCK(mp);
@@ -4201,7 +4204,7 @@ xfs_iext_direct_to_inline(
         */
        memcpy(ifp->if_u2.if_inline_ext, ifp->if_u1.if_extents,
                nextents * sizeof(xfs_bmbt_rec_t));
-       kmem_free(ifp->if_u1.if_extents, KM_SLEEP);
+       kmem_free(ifp->if_u1.if_extents, ifp->if_real_bytes);
        ifp->if_u1.if_extents = ifp->if_u2.if_inline_ext;
        ifp->if_real_bytes = 0;
 }