diff options
Diffstat (limited to 'fs/readdir.c')
| -rw-r--r-- | fs/readdir.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/fs/readdir.c b/fs/readdir.c index 5b620a2b45e6..5d6578affbbf 100644 --- a/fs/readdir.c +++ b/fs/readdir.c @@ -24,7 +24,7 @@ int iterate_dir(struct file *file, struct dir_context *ctx) { struct inode *inode = file_inode(file); int res = -ENOTDIR; - if (!file->f_op || !file->f_op->readdir) + if (!file->f_op || (!file->f_op->readdir && !file->f_op->iterate)) goto out; res = security_file_permission(file, MAY_READ); @@ -37,7 +37,14 @@ int iterate_dir(struct file *file, struct dir_context *ctx) res = -ENOENT; if (!IS_DEADDIR(inode)) { - res = file->f_op->readdir(file, ctx, ctx->actor); + if (file->f_op->iterate) { + ctx->pos = file->f_pos; + res = file->f_op->iterate(file, ctx); + file->f_pos = ctx->pos; + } else { + res = file->f_op->readdir(file, ctx, ctx->actor); + ctx->pos = file->f_pos; + } file_accessed(file); } mutex_unlock(&inode->i_mutex); @@ -214,7 +221,7 @@ SYSCALL_DEFINE3(getdents, unsigned int, fd, error = buf.error; lastdirent = buf.previous; if (lastdirent) { - if (put_user(f.file->f_pos, &lastdirent->d_off)) + if (put_user(buf.ctx.pos, &lastdirent->d_off)) error = -EFAULT; else error = count - buf.count; @@ -296,7 +303,7 @@ SYSCALL_DEFINE3(getdents64, unsigned int, fd, error = buf.error; lastdirent = buf.previous; if (lastdirent) { - typeof(lastdirent->d_off) d_off = f.file->f_pos; + typeof(lastdirent->d_off) d_off = buf.ctx.pos; if (__put_user(d_off, &lastdirent->d_off)) error = -EFAULT; else |