These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / fs / xfs / xfs_dir2_readdir.c

diff --git a/kernel/fs/xfs/xfs_dir2_readdir.c b/kernel/fs/xfs/xfs_dir2_readdir.c
index 098cd78..642d55d 100644 (file)
--- a/kernel/fs/xfs/xfs_dir2_readdir.c
+++ b/kernel/fs/xfs/xfs_dir2_readdir.c
@@ -171,6 +171,7 @@ xfs_dir2_block_getdents(
        int                     wantoff;        /* starting block offset */
        xfs_off_t               cook;
        struct xfs_da_geometry  *geo = args->geo;
+       int                     lock_mode;
 
        /*
         * If the block number in the offset is out of range, we're done.
@@ -178,7 +179,9 @@ xfs_dir2_block_getdents(
        if (xfs_dir2_dataptr_to_db(geo, ctx->pos) > geo->datablk)
                return 0;
 
+       lock_mode = xfs_ilock_data_map_shared(dp);
        error = xfs_dir3_block_read(NULL, dp, &bp);
+       xfs_iunlock(dp, lock_mode);
        if (error)
                return error;
 
@@ -529,9 +532,12 @@ xfs_dir2_leaf_getdents(
                 * current buffer, need to get another one.
                 */
                if (!bp || ptr >= (char *)bp->b_addr + geo->blksize) {
+                       int     lock_mode;
 
+                       lock_mode = xfs_ilock_data_map_shared(dp);
                        error = xfs_dir2_leaf_readbuf(args, bufsize, map_info,
                                                      &curoff, &bp);
+                       xfs_iunlock(dp, lock_mode);
                        if (error || !map_info->map_valid)
                                break;
 
@@ -653,7 +659,6 @@ xfs_readdir(
        struct xfs_da_args      args = { NULL };
        int                     rval;
        int                     v;
-       uint                    lock_mode;
 
        trace_xfs_readdir(dp);
 
@@ -661,12 +666,12 @@ xfs_readdir(
                return -EIO;
 
        ASSERT(S_ISDIR(dp->i_d.di_mode));
-       XFS_STATS_INC(xs_dir_getdents);
+       XFS_STATS_INC(dp->i_mount, xs_dir_getdents);
 
        args.dp = dp;
        args.geo = dp->i_mount->m_dir_geo;
 
-       lock_mode = xfs_ilock_data_map_shared(dp);
+       xfs_ilock(dp, XFS_IOLOCK_SHARED);
        if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL)
                rval = xfs_dir2_sf_getdents(&args, ctx);
        else if ((rval = xfs_dir2_isblock(&args, &v)))
@@ -675,7 +680,7 @@ xfs_readdir(
                rval = xfs_dir2_block_getdents(&args, ctx);
        else
                rval = xfs_dir2_leaf_getdents(&args, ctx, bufsize);
-       xfs_iunlock(dp, lock_mode);
+       xfs_iunlock(dp, XFS_IOLOCK_SHARED);
 
        return rval;
 }