[XFS] kill di_mode checks after xfs_iget
[safe/jmp/linux-2.6] / fs / xfs / xfs_fsops.c
index bfde9e6..d3a0f53 100644 (file)
@@ -44,6 +44,7 @@
 #include "xfs_trans_space.h"
 #include "xfs_rtalloc.h"
 #include "xfs_rw.h"
+#include "xfs_filestream.h"
 
 /*
  * File system operations
@@ -76,34 +77,36 @@ xfs_fs_geometry(
        if (new_version >= 3) {
                geo->version = XFS_FSOP_GEOM_VERSION;
                geo->flags =
-                       (XFS_SB_VERSION_HASATTR(&mp->m_sb) ?
+                       (xfs_sb_version_hasattr(&mp->m_sb) ?
                                XFS_FSOP_GEOM_FLAGS_ATTR : 0) |
-                       (XFS_SB_VERSION_HASNLINK(&mp->m_sb) ?
+                       (xfs_sb_version_hasnlink(&mp->m_sb) ?
                                XFS_FSOP_GEOM_FLAGS_NLINK : 0) |
-                       (XFS_SB_VERSION_HASQUOTA(&mp->m_sb) ?
+                       (xfs_sb_version_hasquota(&mp->m_sb) ?
                                XFS_FSOP_GEOM_FLAGS_QUOTA : 0) |
-                       (XFS_SB_VERSION_HASALIGN(&mp->m_sb) ?
+                       (xfs_sb_version_hasalign(&mp->m_sb) ?
                                XFS_FSOP_GEOM_FLAGS_IALIGN : 0) |
-                       (XFS_SB_VERSION_HASDALIGN(&mp->m_sb) ?
+                       (xfs_sb_version_hasdalign(&mp->m_sb) ?
                                XFS_FSOP_GEOM_FLAGS_DALIGN : 0) |
-                       (XFS_SB_VERSION_HASSHARED(&mp->m_sb) ?
+                       (xfs_sb_version_hasshared(&mp->m_sb) ?
                                XFS_FSOP_GEOM_FLAGS_SHARED : 0) |
-                       (XFS_SB_VERSION_HASEXTFLGBIT(&mp->m_sb) ?
+                       (xfs_sb_version_hasextflgbit(&mp->m_sb) ?
                                XFS_FSOP_GEOM_FLAGS_EXTFLG : 0) |
-                       (XFS_SB_VERSION_HASDIRV2(&mp->m_sb) ?
+                       (xfs_sb_version_hasdirv2(&mp->m_sb) ?
                                XFS_FSOP_GEOM_FLAGS_DIRV2 : 0) |
-                       (XFS_SB_VERSION_HASSECTOR(&mp->m_sb) ?
+                       (xfs_sb_version_hassector(&mp->m_sb) ?
                                XFS_FSOP_GEOM_FLAGS_SECTOR : 0) |
-                       (XFS_SB_VERSION_HASATTR2(&mp->m_sb) ?
+                       (xfs_sb_version_haslazysbcount(&mp->m_sb) ?
+                               XFS_FSOP_GEOM_FLAGS_LAZYSB : 0) |
+                       (xfs_sb_version_hasattr2(&mp->m_sb) ?
                                XFS_FSOP_GEOM_FLAGS_ATTR2 : 0);
-               geo->logsectsize = XFS_SB_VERSION_HASSECTOR(&mp->m_sb) ?
+               geo->logsectsize = xfs_sb_version_hassector(&mp->m_sb) ?
                                mp->m_sb.sb_logsectsize : BBSIZE;
                geo->rtsectsize = mp->m_sb.sb_blocksize;
                geo->dirblocksize = mp->m_dirblksize;
        }
        if (new_version >= 4) {
                geo->flags |=
-                       (XFS_SB_VERSION_HASLOGV2(&mp->m_sb) ?
+                       (xfs_sb_version_haslogv2(&mp->m_sb) ?
                                XFS_FSOP_GEOM_FLAGS_LOGV2 : 0);
                geo->logsunit = mp->m_sb.sb_logsunit;
        }
@@ -133,13 +136,14 @@ xfs_growfs_data_private(
        xfs_rfsblock_t          nfree;
        xfs_agnumber_t          oagcount;
        int                     pct;
-       xfs_sb_t                *sbp;
        xfs_trans_t             *tp;
 
        nb = in->newblocks;
        pct = in->imaxpct;
        if (nb < mp->m_sb.sb_dblocks || pct < 0 || pct > 100)
                return XFS_ERROR(EINVAL);
+       if ((error = xfs_sb_validate_fsb_count(&mp->m_sb, nb)))
+               return error;
        dpct = pct - mp->m_sb.sb_imax_pct;
        error = xfs_read_buf(mp, mp->m_ddev_targp,
                        XFS_FSB_TO_BB(mp, nb) - XFS_FSS_TO_BB(mp, 1),
@@ -161,6 +165,7 @@ xfs_growfs_data_private(
        new = nb - mp->m_sb.sb_dblocks;
        oagcount = mp->m_sb.sb_agcount;
        if (nagcount > oagcount) {
+               xfs_filestream_flush(mp);
                down_write(&mp->m_peraglock);
                mp->m_perag = kmem_realloc(mp->m_perag,
                        sizeof(xfs_perag_t) * nagcount,
@@ -169,10 +174,11 @@ xfs_growfs_data_private(
                memset(&mp->m_perag[oagcount], 0,
                        (nagcount - oagcount) * sizeof(xfs_perag_t));
                mp->m_flags |= XFS_MOUNT_32BITINODES;
-               nagimax = xfs_initialize_perag(XFS_MTOVFS(mp), mp, nagcount);
+               nagimax = xfs_initialize_perag(mp, nagcount);
                up_write(&mp->m_peraglock);
        }
        tp = xfs_trans_alloc(mp, XFS_TRANS_GROWFS);
+       tp->t_flags |= XFS_TRANS_RESERVE;
        if ((error = xfs_trans_reserve(tp, XFS_GROWFS_SPACE_RES(mp),
                        XFS_GROWDATA_LOG_RES(mp), 0, 0, 0))) {
                xfs_trans_cancel(tp, 0);
@@ -250,8 +256,7 @@ xfs_growfs_data_private(
                block->bb_numrecs = cpu_to_be16(1);
                block->bb_leftsib = cpu_to_be32(NULLAGBLOCK);
                block->bb_rightsib = cpu_to_be32(NULLAGBLOCK);
-               arec = XFS_BTREE_REC_ADDR(mp->m_sb.sb_blocksize, xfs_alloc,
-                       block, 1, mp->m_alloc_mxr[0]);
+               arec = XFS_BTREE_REC_ADDR(xfs_alloc, block, 1);
                arec->ar_startblock = cpu_to_be32(XFS_PREALLOC_BLOCKS(mp));
                arec->ar_blockcount = cpu_to_be32(
                        agsize - be32_to_cpu(arec->ar_startblock));
@@ -272,8 +277,7 @@ xfs_growfs_data_private(
                block->bb_numrecs = cpu_to_be16(1);
                block->bb_leftsib = cpu_to_be32(NULLAGBLOCK);
                block->bb_rightsib = cpu_to_be32(NULLAGBLOCK);
-               arec = XFS_BTREE_REC_ADDR(mp->m_sb.sb_blocksize, xfs_alloc,
-                       block, 1, mp->m_alloc_mxr[0]);
+               arec = XFS_BTREE_REC_ADDR(xfs_alloc, block, 1);
                arec->ar_startblock = cpu_to_be32(XFS_PREALLOC_BLOCKS(mp));
                arec->ar_blockcount = cpu_to_be32(
                        agsize - be32_to_cpu(arec->ar_startblock));
@@ -314,7 +318,7 @@ xfs_growfs_data_private(
                }
                ASSERT(bp);
                agi = XFS_BUF_TO_AGI(bp);
-               be32_add(&agi->agi_length, new);
+               be32_add_cpu(&agi->agi_length, new);
                ASSERT(nagcount == oagcount ||
                       be32_to_cpu(agi->agi_length) == mp->m_sb.sb_agblocks);
                xfs_ialloc_log_agi(tp, bp, XFS_AGI_LENGTH);
@@ -327,9 +331,10 @@ xfs_growfs_data_private(
                }
                ASSERT(bp);
                agf = XFS_BUF_TO_AGF(bp);
-               be32_add(&agf->agf_length, new);
+               be32_add_cpu(&agf->agf_length, new);
                ASSERT(be32_to_cpu(agf->agf_length) ==
                       be32_to_cpu(agi->agi_length));
+               xfs_alloc_log_agf(tp, bp, XFS_AGF_LENGTH);
                /*
                 * Free the new space.
                 */
@@ -348,7 +353,7 @@ xfs_growfs_data_private(
                xfs_trans_mod_sb(tp, XFS_TRANS_SB_FDBLOCKS, nfree);
        if (dpct)
                xfs_trans_mod_sb(tp, XFS_TRANS_SB_IMAXPCT, dpct);
-       error = xfs_trans_commit(tp, 0, NULL);
+       error = xfs_trans_commit(tp, 0);
        if (error) {
                return error;
        }
@@ -371,8 +376,7 @@ xfs_growfs_data_private(
                                error, agno);
                        break;
                }
-               sbp = XFS_BUF_TO_SBP(bp);
-               xfs_xlatesb(sbp, &mp->m_sb, -1, XFS_SB_ALL_BITS);
+               xfs_sb_to_disk(XFS_BUF_TO_SBP(bp), &mp->m_sb, XFS_SB_ALL_BITS);
                /*
                 * If we get an error writing out the alternate superblocks,
                 * just issue a warning and continue.  The real work is
@@ -429,10 +433,10 @@ xfs_growfs_data(
        xfs_growfs_data_t       *in)
 {
        int error;
-       if (!cpsema(&mp->m_growlock))
+       if (!mutex_trylock(&mp->m_growlock))
                return XFS_ERROR(EWOULDBLOCK);
        error = xfs_growfs_data_private(mp, in);
-       vsema(&mp->m_growlock);
+       mutex_unlock(&mp->m_growlock);
        return error;
 }
 
@@ -442,10 +446,10 @@ xfs_growfs_log(
        xfs_growfs_log_t        *in)
 {
        int error;
-       if (!cpsema(&mp->m_growlock))
+       if (!mutex_trylock(&mp->m_growlock))
                return XFS_ERROR(EWOULDBLOCK);
        error = xfs_growfs_log_private(mp, in);
-       vsema(&mp->m_growlock);
+       mutex_unlock(&mp->m_growlock);
        return error;
 }
 
@@ -458,15 +462,13 @@ xfs_fs_counts(
        xfs_mount_t             *mp,
        xfs_fsop_counts_t       *cnt)
 {
-       unsigned long   s;
-
        xfs_icsb_sync_counters_flags(mp, XFS_ICSB_LAZY_COUNT);
-       s = XFS_SB_LOCK(mp);
+       spin_lock(&mp->m_sb_lock);
        cnt->freedata = mp->m_sb.sb_fdblocks - XFS_ALLOC_SET_ASIDE(mp);
        cnt->freertx = mp->m_sb.sb_frextents;
        cnt->freeino = mp->m_sb.sb_ifree;
        cnt->allocino = mp->m_sb.sb_icount;
-       XFS_SB_UNLOCK(mp, s);
+       spin_unlock(&mp->m_sb_lock);
        return 0;
 }
 
@@ -493,11 +495,11 @@ xfs_reserve_blocks(
 {
        __int64_t               lcounter, delta, fdblks_delta;
        __uint64_t              request;
-       unsigned long           s;
 
        /* If inval is null, report current values and return */
-
        if (inval == (__uint64_t *)NULL) {
+               if (!outval)
+                       return EINVAL;
                outval->resblks = mp->m_resblks;
                outval->resblks_avail = mp->m_resblks_avail;
                return 0;
@@ -510,7 +512,7 @@ xfs_reserve_blocks(
         * problem. we needto work out if we are freeing or allocation
         * blocks first, then we can do the modification as necessary.
         *
-        * We do this under the XFS_SB_LOCK so that if we are near
+        * We do this under the m_sb_lock so that if we are near
         * ENOSPC, we will hold out any changes while we work out
         * what to do. This means that the amount of free space can
         * change while we do this, so we need to retry if we end up
@@ -521,7 +523,7 @@ xfs_reserve_blocks(
         * enabled, disabled or even compiled in....
         */
 retry:
-       s = XFS_SB_LOCK(mp);
+       spin_lock(&mp->m_sb_lock);
        xfs_icsb_sync_counters_flags(mp, XFS_ICSB_SB_LOCKED);
 
        /*
@@ -560,9 +562,11 @@ retry:
                }
        }
 out:
-       outval->resblks = mp->m_resblks;
-       outval->resblks_avail = mp->m_resblks_avail;
-       XFS_SB_UNLOCK(mp, s);
+       if (outval) {
+               outval->resblks = mp->m_resblks;
+               outval->resblks_avail = mp->m_resblks_avail;
+       }
+       spin_unlock(&mp->m_sb_lock);
 
        if (fdblks_delta) {
                /*
@@ -607,7 +611,7 @@ xfs_fs_log_dummy(
        xfs_trans_ihold(tp, ip);
        xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
        xfs_trans_set_sync(tp);
-       xfs_trans_commit(tp, 0, NULL);
+       xfs_trans_commit(tp, 0);
 
        xfs_iunlock(ip, XFS_ILOCK_EXCL);
 }
@@ -619,8 +623,7 @@ xfs_fs_goingdown(
 {
        switch (inflags) {
        case XFS_FSOP_GOING_FLAGS_DEFAULT: {
-               struct bhv_vfs *vfsp = XFS_MTOVFS(mp);
-               struct super_block *sb = freeze_bdev(vfsp->vfs_super->s_bdev);
+               struct super_block *sb = freeze_bdev(mp->m_super->s_bdev);
 
                if (sb && !IS_ERR(sb)) {
                        xfs_force_shutdown(mp, SHUTDOWN_FORCE_UMOUNT);