]> www.pilppa.org Git - linux-2.6-omap-h63xx.git/blobdiff - fs/xfs/xfs_inode.c
[XFS] kill bhv_vnode_t
[linux-2.6-omap-h63xx.git] / fs / xfs / xfs_inode.c
index fcb1dcc6f0365ab92390275213cba4aa3de3b7d9..19e7a7b82703d6e3c3803c0a9cc3ac486562d8a4 100644 (file)
@@ -1046,7 +1046,7 @@ xfs_ialloc(
 {
        xfs_ino_t       ino;
        xfs_inode_t     *ip;
-       bhv_vnode_t     *vp;
+       struct inode    *vp;
        uint            flags;
        int             error;
 
@@ -1077,7 +1077,7 @@ xfs_ialloc(
        }
        ASSERT(ip != NULL);
 
-       vp = XFS_ITOV(ip);
+       vp = VFS_I(ip);
        ip->i_d.di_mode = (__uint16_t)mode;
        ip->i_d.di_onlink = 0;
        ip->i_d.di_nlink = nlink;
@@ -1399,7 +1399,6 @@ xfs_itruncate_start(
        xfs_fsize_t     last_byte;
        xfs_off_t       toss_start;
        xfs_mount_t     *mp;
-       bhv_vnode_t     *vp;
        int             error = 0;
 
        ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL));
@@ -1408,7 +1407,6 @@ xfs_itruncate_start(
               (flags == XFS_ITRUNC_MAYBE));
 
        mp = ip->i_mount;
-       vp = XFS_ITOV(ip);
 
        /* wait for the completion of any pending DIOs */
        if (new_size < ip->i_size)
@@ -1457,7 +1455,7 @@ xfs_itruncate_start(
 
 #ifdef DEBUG
        if (new_size == 0) {
-               ASSERT(VN_CACHED(vp) == 0);
+               ASSERT(VN_CACHED(VFS_I(ip)) == 0);
        }
 #endif
        return error;
@@ -3465,7 +3463,6 @@ xfs_iflush_all(
        xfs_mount_t     *mp)
 {
        xfs_inode_t     *ip;
-       bhv_vnode_t     *vp;
 
  again:
        XFS_MOUNT_ILOCK(mp);
@@ -3480,14 +3477,13 @@ xfs_iflush_all(
                        continue;
                }
 
-               vp = XFS_ITOV_NULL(ip);
-               if (!vp) {
+               if (!VFS_I(ip)) {
                        XFS_MOUNT_IUNLOCK(mp);
                        xfs_finish_reclaim(ip, 0, XFS_IFLUSH_ASYNC);
                        goto again;
                }
 
-               ASSERT(vn_count(vp) == 0);
+               ASSERT(vn_count(VFS_I(ip)) == 0);
 
                ip = ip->i_mnext;
        } while (ip != mp->m_inodes);
@@ -3707,7 +3703,7 @@ xfs_iext_add_indirect_multi(
         * (all extents past */
        if (nex2) {
                byte_diff = nex2 * sizeof(xfs_bmbt_rec_t);
-               nex2_ep = (xfs_bmbt_rec_t *) kmem_alloc(byte_diff, KM_SLEEP);
+               nex2_ep = (xfs_bmbt_rec_t *) kmem_alloc(byte_diff, KM_NOFS);
                memmove(nex2_ep, &erp->er_extbuf[idx], byte_diff);
                erp->er_extcount -= nex2;
                xfs_iext_irec_update_extoffs(ifp, erp_idx + 1, -nex2);
@@ -4007,8 +4003,7 @@ xfs_iext_realloc_direct(
                        ifp->if_u1.if_extents =
                                kmem_realloc(ifp->if_u1.if_extents,
                                                rnew_size,
-                                               ifp->if_real_bytes,
-                                               KM_SLEEP);
+                                               ifp->if_real_bytes, KM_NOFS);
                }
                if (rnew_size > ifp->if_real_bytes) {
                        memset(&ifp->if_u1.if_extents[ifp->if_bytes /
@@ -4067,7 +4062,7 @@ xfs_iext_inline_to_direct(
        xfs_ifork_t     *ifp,           /* inode fork pointer */
        int             new_size)       /* number of extents in file */
 {
-       ifp->if_u1.if_extents = kmem_alloc(new_size, KM_SLEEP);
+       ifp->if_u1.if_extents = kmem_alloc(new_size, KM_NOFS);
        memset(ifp->if_u1.if_extents, 0, new_size);
        if (ifp->if_bytes) {
                memcpy(ifp->if_u1.if_extents, ifp->if_u2.if_inline_ext,
@@ -4099,7 +4094,7 @@ xfs_iext_realloc_indirect(
        } else {
                ifp->if_u1.if_ext_irec = (xfs_ext_irec_t *)
                        kmem_realloc(ifp->if_u1.if_ext_irec,
-                               new_size, size, KM_SLEEP);
+                               new_size, size, KM_NOFS);
        }
 }
 
@@ -4341,11 +4336,10 @@ xfs_iext_irec_init(
        nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
        ASSERT(nextents <= XFS_LINEAR_EXTS);
 
-       erp = (xfs_ext_irec_t *)
-               kmem_alloc(sizeof(xfs_ext_irec_t), KM_SLEEP);
+       erp = kmem_alloc(sizeof(xfs_ext_irec_t), KM_NOFS);
 
        if (nextents == 0) {
-               ifp->if_u1.if_extents = kmem_alloc(XFS_IEXT_BUFSZ, KM_SLEEP);
+               ifp->if_u1.if_extents = kmem_alloc(XFS_IEXT_BUFSZ, KM_NOFS);
        } else if (!ifp->if_real_bytes) {
                xfs_iext_inline_to_direct(ifp, XFS_IEXT_BUFSZ);
        } else if (ifp->if_real_bytes < XFS_IEXT_BUFSZ) {
@@ -4393,7 +4387,7 @@ xfs_iext_irec_new(
 
        /* Initialize new extent record */
        erp = ifp->if_u1.if_ext_irec;
-       erp[erp_idx].er_extbuf = kmem_alloc(XFS_IEXT_BUFSZ, KM_SLEEP);
+       erp[erp_idx].er_extbuf = kmem_alloc(XFS_IEXT_BUFSZ, KM_NOFS);
        ifp->if_real_bytes = nlists * XFS_IEXT_BUFSZ;
        memset(erp[erp_idx].er_extbuf, 0, XFS_IEXT_BUFSZ);
        erp[erp_idx].er_extcount = 0;
@@ -4532,39 +4526,63 @@ xfs_iext_irec_compact_full(
        int             nlists;                 /* number of irec's (ex lists) */
 
        ASSERT(ifp->if_flags & XFS_IFEXTIREC);
+
        nlists = ifp->if_real_bytes / XFS_IEXT_BUFSZ;
        erp = ifp->if_u1.if_ext_irec;
        ep = &erp->er_extbuf[erp->er_extcount];
        erp_next = erp + 1;
        ep_next = erp_next->er_extbuf;
+
        while (erp_idx < nlists - 1) {
+               /*
+                * Check how many extent records are available in this irec.
+                * If there is none skip the whole exercise.
+                */
                ext_avail = XFS_LINEAR_EXTS - erp->er_extcount;
-               ext_diff = MIN(ext_avail, erp_next->er_extcount);
-               memcpy(ep, ep_next, ext_diff * sizeof(xfs_bmbt_rec_t));
-               erp->er_extcount += ext_diff;
-               erp_next->er_extcount -= ext_diff;
-               /* Remove next page */
-               if (erp_next->er_extcount == 0) {
+               if (ext_avail) {
+
                        /*
-                        * Free page before removing extent record
-                        * so er_extoffs don't get modified in
-                        * xfs_iext_irec_remove.
+                        * Copy over as many as possible extent records into
+                        * the previous page.
                         */
-                       kmem_free(erp_next->er_extbuf);
-                       erp_next->er_extbuf = NULL;
-                       xfs_iext_irec_remove(ifp, erp_idx + 1);
-                       erp = &ifp->if_u1.if_ext_irec[erp_idx];
-                       nlists = ifp->if_real_bytes / XFS_IEXT_BUFSZ;
-               /* Update next page */
-               } else {
-                       /* Move rest of page up to become next new page */
-                       memmove(erp_next->er_extbuf, ep_next,
-                               erp_next->er_extcount * sizeof(xfs_bmbt_rec_t));
-                       ep_next = erp_next->er_extbuf;
-                       memset(&ep_next[erp_next->er_extcount], 0,
-                               (XFS_LINEAR_EXTS - erp_next->er_extcount) *
-                               sizeof(xfs_bmbt_rec_t));
+                       ext_diff = MIN(ext_avail, erp_next->er_extcount);
+                       memcpy(ep, ep_next, ext_diff * sizeof(xfs_bmbt_rec_t));
+                       erp->er_extcount += ext_diff;
+                       erp_next->er_extcount -= ext_diff;
+
+                       /*
+                        * If the next irec is empty now we can simply
+                        * remove it.
+                        */
+                       if (erp_next->er_extcount == 0) {
+                               /*
+                                * Free page before removing extent record
+                                * so er_extoffs don't get modified in
+                                * xfs_iext_irec_remove.
+                                */
+                               kmem_free(erp_next->er_extbuf);
+                               erp_next->er_extbuf = NULL;
+                               xfs_iext_irec_remove(ifp, erp_idx + 1);
+                               erp = &ifp->if_u1.if_ext_irec[erp_idx];
+                               nlists = ifp->if_real_bytes / XFS_IEXT_BUFSZ;
+
+                       /*
+                        * If the next irec is not empty move up the content
+                        * that has not been copied to the previous page to
+                        * the beggining of this one.
+                        */
+                       } else {
+                               memmove(erp_next->er_extbuf, &ep_next[ext_diff],
+                                       erp_next->er_extcount *
+                                       sizeof(xfs_bmbt_rec_t));
+                               ep_next = erp_next->er_extbuf;
+                               memset(&ep_next[erp_next->er_extcount], 0,
+                                       (XFS_LINEAR_EXTS -
+                                               erp_next->er_extcount) *
+                                       sizeof(xfs_bmbt_rec_t));
+                       }
                }
+
                if (erp->er_extcount == XFS_LINEAR_EXTS) {
                        erp_idx++;
                        if (erp_idx < nlists)