mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-22 15:02:32 +00:00
130 lines
2.9 KiB
Diff
130 lines
2.9 KiB
Diff
--- a/fs/yaffs2/yaffs_vfs.c
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+++ b/fs/yaffs2/yaffs_vfs.c
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@@ -1701,6 +1701,110 @@ static void yaffs_remove_obj_callback(st
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/*-----------------------------------------------------------------*/
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+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 12, 0))
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+static int yaffs_readdir(struct file *file, struct dir_context *ctx)
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+{
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+ struct yaffs_obj *obj;
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+ struct yaffs_dev *dev;
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+ struct yaffs_search_context *sc;
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+ struct inode *inode = file->f_dentry->d_inode;
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+ unsigned long offset, curoffs;
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+ struct yaffs_obj *l;
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+ int ret_val = 0;
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+
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+ char name[YAFFS_MAX_NAME_LENGTH + 1];
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+
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+ obj = yaffs_dentry_to_obj(file->f_dentry);
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+ dev = obj->my_dev;
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+
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+ yaffs_gross_lock(dev);
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+
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+ yaffs_dev_to_lc(dev)->readdir_process = current;
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+
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+ offset = ctx->pos;
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+
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+ sc = yaffs_new_search(obj);
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+ if (!sc) {
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+ ret_val = -ENOMEM;
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+ goto out;
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+ }
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+
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+ yaffs_trace(YAFFS_TRACE_OS,
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+ "yaffs_readdir: starting at %d", (int)offset);
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+
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+ if (offset == 0) {
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+ yaffs_trace(YAFFS_TRACE_OS,
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+ "yaffs_readdir: entry . ino %d",
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+ (int)inode->i_ino);
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+ yaffs_gross_unlock(dev);
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+ if (!dir_emit_dot(file, ctx)) {
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+ yaffs_gross_lock(dev);
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+ goto out;
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+ }
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+ yaffs_gross_lock(dev);
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+ offset++;
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+ ctx->pos++;
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+ }
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+ if (offset == 1) {
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+ yaffs_trace(YAFFS_TRACE_OS,
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+ "yaffs_readdir: entry .. ino %d",
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+ (int)file->f_dentry->d_parent->d_inode->i_ino);
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+ yaffs_gross_unlock(dev);
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+ if (!dir_emit_dotdot(file, ctx)) {
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+ yaffs_gross_lock(dev);
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+ goto out;
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+ }
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+ yaffs_gross_lock(dev);
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+ offset++;
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+ ctx->pos++;
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+ }
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+
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+ curoffs = 1;
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+
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+ /* If the directory has changed since the open or last call to
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+ readdir, rewind to after the 2 canned entries. */
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+ if (file->f_version != inode->i_version) {
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+ offset = 2;
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+ ctx->pos = offset;
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+ file->f_version = inode->i_version;
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+ }
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+
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+ while (sc->next_return) {
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+ curoffs++;
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+ l = sc->next_return;
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+ if (curoffs >= offset) {
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+ int this_inode = yaffs_get_obj_inode(l);
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+ int this_type = yaffs_get_obj_type(l);
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+
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+ yaffs_get_obj_name(l, name, YAFFS_MAX_NAME_LENGTH + 1);
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+ yaffs_trace(YAFFS_TRACE_OS,
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+ "yaffs_readdir: %s inode %d",
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+ name, yaffs_get_obj_inode(l));
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+
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+ yaffs_gross_unlock(dev);
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+
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+ if (!dir_emit(ctx, name, strlen(name),
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+ this_inode, this_type) < 0) {
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+ yaffs_gross_lock(dev);
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+ goto out;
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+ }
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+
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+ yaffs_gross_lock(dev);
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+
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+ offset++;
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+ ctx->pos++;
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+ }
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+ yaffs_search_advance(sc);
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+ }
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+
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+out:
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+ yaffs_search_end(sc);
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+ yaffs_dev_to_lc(dev)->readdir_process = NULL;
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+ yaffs_gross_unlock(dev);
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+
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+ return ret_val;
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+}
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+#else
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static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir)
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{
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struct yaffs_obj *obj;
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@@ -1807,10 +1911,15 @@ out:
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return ret_val;
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}
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+#endif
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static const struct file_operations yaffs_dir_operations = {
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.read = generic_read_dir,
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+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 12, 0))
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+ .iterate = yaffs_readdir,
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+#else
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.readdir = yaffs_readdir,
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+#endif
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.fsync = yaffs_sync_object,
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.llseek = generic_file_llseek,
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};
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