1 files changed, 18 insertions, 103 deletions

diff --git a/fs/xfs/xfs_dir2.c b/fs/xfs/xfs_dir2.c
index 29e091914df4..c2d2bef26cbd 100644
--- a/fs/xfs/xfs_dir2.c
+++ b/fs/xfs/xfs_dir2.c
@@ -43,8 +43,6 @@
 #include "xfs_dir2_trace.h"
 #include "xfs_error.h"
 
-static int      xfs_dir2_put_dirent64_direct(xfs_dir2_put_args_t *pa);
-static int      xfs_dir2_put_dirent64_uio(xfs_dir2_put_args_t *pa);
 
 void
 xfs_dir_mount(
@@ -293,47 +291,35 @@ xfs_dir_removename(
  * Read a directory.
  */
 int
-xfs_dir_getdents(
-        xfs_trans_t     *tp,
-        xfs_inode_t     *dp,
-        uio_t           *uio,           /* caller's buffer control */
-        int             *eofp)          /* out: eof reached */
+xfs_readdir(
+        bhv_desc_t      *dir_bdp,
+        void            *dirent,
+        size_t          bufsize,
+        xfs_off_t       *offset,
+        filldir_t       filldir)
 {
-        int             alignment;      /* alignment required for ABI */
-        xfs_dirent_t    *dbp;           /* malloc'ed buffer */
-        xfs_dir2_put_t  put;            /* entry formatting routine */
+        xfs_inode_t     *dp = XFS_BHVTOI(dir_bdp);
         int             rval;           /* return value */
         int             v;              /* type-checking value */
 
+        vn_trace_entry(BHV_TO_VNODE(dir_bdp), __FUNCTION__,
+                                               (inst_t *)__return_address);
+
+        if (XFS_FORCED_SHUTDOWN(dp->i_mount))
+                return XFS_ERROR(EIO);
+
         ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
         XFS_STATS_INC(xs_dir_getdents);
-        /*
-         * If our caller has given us a single contiguous aligned memory buffer,
-         * just work directly within that buffer.  If it's in user memory,
-         * lock it down first.
-         */
-        alignment = sizeof(xfs_off_t) - 1;
-        if ((uio->uio_iovcnt == 1) &&
-            (((__psint_t)uio->uio_iov[0].iov_base & alignment) == 0) &&
-            ((uio->uio_iov[0].iov_len & alignment) == 0)) {
-                dbp = NULL;
-                put = xfs_dir2_put_dirent64_direct;
-        } else {
-                dbp = kmem_alloc(sizeof(*dbp) + MAXNAMELEN, KM_SLEEP);
-                put = xfs_dir2_put_dirent64_uio;
-        }
 
-        *eofp = 0;
         if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL)
-                rval = xfs_dir2_sf_getdents(dp, uio, eofp, dbp, put);
-        else if ((rval = xfs_dir2_isblock(tp, dp, &v)))
+                rval = xfs_dir2_sf_getdents(dp, dirent, offset, filldir);
+        else if ((rval = xfs_dir2_isblock(NULL, dp, &v)))
                 ;
         else if (v)
-                rval = xfs_dir2_block_getdents(tp, dp, uio, eofp, dbp, put);
+                rval = xfs_dir2_block_getdents(dp, dirent, offset, filldir);
         else
-                rval = xfs_dir2_leaf_getdents(tp, dp, uio, eofp, dbp, put);
-        if (dbp != NULL)
-                kmem_free(dbp, sizeof(*dbp) + MAXNAMELEN);
+                rval = xfs_dir2_leaf_getdents(dp, dirent, bufsize, offset,
+                                              filldir);
         return rval;
 }
 
@@ -613,77 +599,6 @@ xfs_dir2_isleaf(
 }
 
 /*
- * Getdents put routine for 64-bit ABI, direct form.
- */
-static int
-xfs_dir2_put_dirent64_direct(
-        xfs_dir2_put_args_t     *pa)
-{
-        xfs_dirent_t            *idbp;          /* dirent pointer */
-        iovec_t                 *iovp;          /* io vector */
-        int                     namelen;        /* entry name length */
-        int                     reclen;         /* entry total length */
-        uio_t                   *uio;           /* I/O control */
-
-        namelen = pa->namelen;
-        reclen = DIRENTSIZE(namelen);
-        uio = pa->uio;
-        /*
-         * Won't fit in the remaining space.
-         */
-        if (reclen > uio->uio_resid) {
-                pa->done = 0;
-                return 0;
-        }
-        iovp = uio->uio_iov;
-        idbp = (xfs_dirent_t *)iovp->iov_base;
-        iovp->iov_base = (char *)idbp + reclen;
-        iovp->iov_len -= reclen;
-        uio->uio_resid -= reclen;
-        idbp->d_reclen = reclen;
-        idbp->d_ino = pa->ino;
-        idbp->d_off = pa->cook;
-        idbp->d_name[namelen] = '\0';
-        pa->done = 1;
-        memcpy(idbp->d_name, pa->name, namelen);
-        return 0;
-}
-
-/*
- * Getdents put routine for 64-bit ABI, uio form.
- */
-static int
-xfs_dir2_put_dirent64_uio(
-        xfs_dir2_put_args_t     *pa)
-{
-        xfs_dirent_t            *idbp;          /* dirent pointer */
-        int                     namelen;        /* entry name length */
-        int                     reclen;         /* entry total length */
-        int                     rval;           /* return value */
-        uio_t                   *uio;           /* I/O control */
-
-        namelen = pa->namelen;
-        reclen = DIRENTSIZE(namelen);
-        uio = pa->uio;
-        /*
-         * Won't fit in the remaining space.
-         */
-        if (reclen > uio->uio_resid) {
-                pa->done = 0;
-                return 0;
-        }
-        idbp = pa->dbp;
-        idbp->d_reclen = reclen;
-        idbp->d_ino = pa->ino;
-        idbp->d_off = pa->cook;
-        idbp->d_name[namelen] = '\0';
-        memcpy(idbp->d_name, pa->name, namelen);
-        rval = xfs_uio_read((caddr_t)idbp, reclen, uio);
-        pa->done = (rval == 0);
-        return rval;
-}
-
-/*
  * Remove the given block from the directory.
  * This routine is used for data and free blocks, leaf/node are done
  * by xfs_da_shrink_inode.